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<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">Front. Sustain. Food Syst.</journal-id>
<journal-title>Frontiers in Sustainable Food Systems</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Sustain. Food Syst.</abbrev-journal-title>
<issn pub-type="epub">2571-581X</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.3389/fsufs.2022.938085</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Sustainable Food Systems</subject>
<subj-group>
<subject>Systematic Review</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group>
<article-title>Using animal history to inform current debates in gene editing farm animals: A systematic review</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name><surname>Wright</surname> <given-names>Will</given-names></name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<uri xlink:href="http://loop.frontiersin.org/people/1803853/overview"/>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name><surname>Tworek</surname> <given-names>Heidi J. S.</given-names></name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<xref ref-type="aff" rid="aff2"><sup>2</sup></xref>
<xref ref-type="corresp" rid="c001"><sup>&#x0002A;</sup></xref>
<uri xlink:href="http://loop.frontiersin.org/people/1884845/overview"/>
</contrib>
<contrib contrib-type="author">
<name><surname>von Keyserlingk</surname> <given-names>Marina A. G.</given-names></name>
<xref ref-type="aff" rid="aff3"><sup>3</sup></xref>
<uri xlink:href="http://loop.frontiersin.org/people/700782/overview"/>
</contrib>
<contrib contrib-type="author">
<name><surname>Koralesky</surname> <given-names>Katherine E.</given-names></name>
<xref ref-type="aff" rid="aff3"><sup>3</sup></xref>
<uri xlink:href="http://loop.frontiersin.org/people/1926855/overview"/>
</contrib>
<contrib contrib-type="author">
<name><surname>Weary</surname> <given-names>Daniel M.</given-names></name>
<xref ref-type="aff" rid="aff3"><sup>3</sup></xref>
<uri xlink:href="http://loop.frontiersin.org/people/652073/overview"/>
</contrib>
</contrib-group>
<aff id="aff1"><sup>1</sup><institution>Department of History, The University of British Columbia</institution>, <addr-line>Vancouver, BC</addr-line>, <country>Canada</country></aff>
<aff id="aff2"><sup>2</sup><institution>School of Public Policy and Global Affairs, The University of British Columbia</institution>, <addr-line>Vancouver, BC</addr-line>, <country>Canada</country></aff>
<aff id="aff3"><sup>3</sup><institution>Animal Welfare Program, Faculty of Land and Food Systems, The University of British Columbia</institution>, <addr-line>Vancouver, BC</addr-line>, <country>Canada</country></aff>
<author-notes>
<fn fn-type="edited-by"><p>Edited by: Chris Duvall, University of New Mexico, United States</p></fn>
<fn fn-type="edited-by"><p>Reviewed by: Blaz Stres, University of Ljubljana, Slovenia; Hardin Tibbs, Synthesys Stategic Consulting Ltd., United Kingdom</p></fn>
<corresp id="c001">&#x0002A;Correspondence: Heidi J. S. Tworek <email>heidi.tworek&#x00040;ubc.ca</email></corresp>
<fn fn-type="other" id="fn001"><p>This article was submitted to Social Movements, Institutions and Governance, a section of the journal Frontiers in Sustainable Food Systems</p></fn></author-notes>
<pub-date pub-type="epub">
<day>04</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="collection">
<year>2022</year>
</pub-date>
<volume>6</volume>
<elocation-id>938085</elocation-id>
<history>
<date date-type="received">
<day>06</day>
<month>05</month>
<year>2022</year>
</date>
<date date-type="accepted">
<day>13</day>
<month>07</month>
<year>2022</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#x000A9; 2022 Wright, Tworek, von Keyserlingk, Koralesky and Weary.</copyright-statement>
<copyright-year>2022</copyright-year>
<copyright-holder>Wright, Tworek, von Keyserlingk, Koralesky and Weary</copyright-holder>
<license xlink:href="http://creativecommons.org/licenses/by/4.0/"><p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</p></license>
</permissions>
<abstract>
<p>There is growing interest in gene editing farm animals. Some alterations could benefit animal welfare (e.g., improved heat tolerance in cattle with the &#x0201C;slick&#x0201D; gene), the environment (e.g., reducing methane emissions from cattle with induced pluripotent stem cells), and productivity (e.g., higher weight gains in cattle with the &#x0201C;double muscling&#x0201D; gene). Existing scholarship on the acceptability of such modifications has used myriad approaches to identify societal factors that shape the ethics and governance of this technology. We argue that integrating historical approaches&#x02014;particularly from the relatively new and burgeoning field of animal history&#x02014;offers a form of &#x0201C;anticipatory knowledge&#x0201D; that can help guide discussions on this topic. We conducted a systematic review of the animal history literature in English, German, and Spanish to identify the influence of political, scientific, economic, social, and cultural factors on the development and acceptance of such technologies. We identified analogous structures and fault lines in past debates about farm animals that provide insights for contemporary discussions about gene editing. Those analogous structures include the market power of meatpackers or the racialized precepts in livestock breeding, and fault lines, like the disconnect between states and citizens over the direction of food systems. Highlighting these similarities demonstrates how external forces have shaped&#x02014;and will continue to shape&#x02014;the acceptance or rejection of emerging biotechnologies as applied to farm animals.</p></abstract>
<kwd-group>
<kwd>animal history</kwd>
<kwd>gene editing (CRISPR/Cas9)</kwd>
<kwd>biotechnology</kwd>
<kwd>animal welfare</kwd>
<kwd>sustainability</kwd>
<kwd>agriculture</kwd>
<kwd>anticipatory knowledge</kwd>
</kwd-group>
<contract-num rid="cn001">AWD-016758: GENOMECA 2020</contract-num>
<contract-sponsor id="cn001">Genome Canada<named-content content-type="fundref-id">10.13039/100008762</named-content></contract-sponsor>
<counts>
<fig-count count="4"/>
<table-count count="2"/>
<equation-count count="0"/>
<ref-count count="198"/>
<page-count count="18"/>
<word-count count="14645"/>
</counts>
</article-meta>
</front>
<body>
<sec sec-type="intro" id="s1">
<title>Introduction</title>
<p>Gene editing is a controversial technology whose proponents claim it can address current challenges in animal agriculture. As temperatures rise due to climate change, periods of warm weather can negatively impact the welfare of dairy cows (Polsky and von Keyserlingk, <xref ref-type="bibr" rid="B119">2017</xref>) and milk production (Osei-Amponsah et al., <xref ref-type="bibr" rid="B109">2020</xref>). One approach to mitigate heat stress is to incorporate gene editing techniques (e.g., TALENS and CRISPR-Cas9) to improve the animal&#x00027;s ability to regulate its body temperature (Dang et al., <xref ref-type="bibr" rid="B31">2019</xref>). The prolactin receptor &#x0201C;slick&#x0201D; gene derives its nickname from the fact that cattle inheriting it have a short and sleek hair coat, an observation first described as a random genetic mutation in the Senepol breed of the Caribbean. Using gene editing tools, scientists have incorporated the slick gene into Holsteins and other cattle breeds&#x02014;thereby improving heat tolerance with shorter hair coats (see <xref ref-type="fig" rid="F1">Figure 1</xref>) (Dikmen et al., <xref ref-type="bibr" rid="B40">2014</xref>; Hansen, <xref ref-type="bibr" rid="B63">2020</xref>). This and other applications of gene editing have been criticized as upholding intensive agricultural practices (Devolder, <xref ref-type="bibr" rid="B39">2021</xref>; Hock, <xref ref-type="bibr" rid="B68">2021</xref>), potentially undermining public trust in an ever-evolving food system.</p>
<fig id="F1" position="float">
<label>Figure 1</label>
<caption><p>An artistic rendition of &#x0201C;greening Holsteins&#x0201D; to represent enhancing climate adaptation in cattle with gene editing tools. <italic>Eco-stein</italic>, original artwork by Patricia Knoblauch, 2021. Used with permission.</p></caption>
<graphic mimetype="image" mime-subtype="tiff" xlink:href="fsufs-06-938085-g0001.tif"/>
</fig>
<p>While gene editing for bovine thermoregulation might seem new, there is a history of acclimatizing cattle to cope with warmer places. In 1911, for instance, a British- and French-owned beef syndicate hired Murdo Mackenzie, a Scotsman and the esteemed manager of the Matador Ranch in Texas, to set up new operations in South America (Wilcox, <xref ref-type="bibr" rid="B179">2008</xref>). Mackenzie and the Brazil Land, Cattle, amd Packing Company imported 900 Hereford and Shorthorn bulls from the United States to cross with &#x0201C;creole&#x0201D; herds in Brazil. However, the reception of &#x0201C;foreign stock&#x0201D; was not positive: many Brazilian farmers viewed these cattle as too frail to withstand the intense sun of the tropical grasslands and rejected the notion of &#x0201C;upgrading&#x0201D; their herds with these purebreds. This reaction was underpinned by local breeders who placed greater value on the heat- and disease-resistance traits of the Zebu cattle from India. Murdo&#x00027;s son John Mackenzie echoed this sentiment in the 1920s, stating: &#x0201C;With few exceptions the native Brazilian prefers cattle of the Brahma [Zebu] type&#x0201D; (Wilcox, <xref ref-type="bibr" rid="B179">2008</xref>, p. 378). As corporations in the global North attempted to replicate a model of cattle production across the world, North American and European expertise about temperate-adapted breeds did not translate well when implemented under tropical ranching conditions. Brazilians chose Zebus over Herefords because the former&#x00027;s traits were deemed as more suitable to local environmental conditions (Wilcox, <xref ref-type="bibr" rid="B180">2017</xref>).</p>
<p>This historical example of cultural preferences for Zebu cattle suggests that gene editing for improved heat tolerance will confront past legacies that influence its adoption. A recent survey in Brazil suggests that citizens objected less to gene editing technology itself than potential intended uses and beneficiaries (Yunes et al., <xref ref-type="bibr" rid="B195">2021</xref>). Some participants argued that genomic alteration was &#x0201C;unnatural&#x0201D; because human intervention violated the animal&#x00027;s integrity, while some questioned the profit motives behind genetic traits based on their perceived value to the farmer. Still others preferred alternatives such as providing cattle with shade or crossing them with heat-tolerant Zebu breeds (Yunes et al., <xref ref-type="bibr" rid="B195">2021</xref>). Public attitudes appear most accepting toward gene editing when the introduced traits are perceived to provide a social good, for example, to animal welfare or the environment (Ritter et al., <xref ref-type="bibr" rid="B121">2019</xref>; Kramer and Meijboom, <xref ref-type="bibr" rid="B80">2020</xref>). While crossbreeding with Zebu for heat tolerance traits might compromise other animal characteristics, public affinities toward the breed as an alternative to gene editing come from a deeper context.</p>
<p>We argue that incorporating an historical dimension can inform current debates about gene editing farm animals by offering &#x0201C;anticipatory knowledge&#x0201D;, extracting lessons from the past that turn hindsight into foresight (Simon et al., <xref ref-type="bibr" rid="B141">2021</xref>). Animal history is anticipatory because past experiences help to shape present and future expectations (Neustadt and May, <xref ref-type="bibr" rid="B105">1986</xref>; Oreskes and Conway, <xref ref-type="bibr" rid="B107">2014</xref>). Examining why past technologies were adopted (or not) can prepare stakeholders to identify and anticipate similar factors in the present. As a precedent for showing why historical approaches can provide insights, we turn to the example provided by Holloway and Bear (<xref ref-type="bibr" rid="B70">2017</xref>) who investigated the adoption of milking technologies. They found that UK farmers held comparable anxieties in the transition from hand- to machine-milking (1930s&#x02212;1960s) as farmers did in the shift almost half a century later from machine- to automated-milking (1990s&#x02212;2010s). They identified a concern about the technology weakening &#x0201C;stockmanship&#x0201D; as farmers went from milking cows by hand (intimate human-animal relationships) to milking by machine (humans and animals co-present but distanced). Given this historical context, the arrival of automated-milking systems could be seen as both a barrier (neglecting the herd) or an opportunity (freeing of time to allow for more individualized care) (Holloway, <xref ref-type="bibr" rid="B69">2007</xref>). In a systematic review of scholarly literature for and against using gene editing on animals, De Graeff et al. (<xref ref-type="bibr" rid="B32">2019</xref>) commented that &#x0201C;arguments raised previously, in different contexts or in older but related debates, may be relevant for the current discussion of genome editing.&#x0201D; Synthesizing recent works in animal history is about revisiting these older but related debates to uncover historical lessons from precursors such as selective breeding or artificial insemination (Kramer and Meijboom, <xref ref-type="bibr" rid="B80">2020</xref>). It also enables scholars to discern which historical cases are likely analogous to gene editing. Our central research question was thus: how and why can animal history contribute to contemporary discussions of, and developments in, gene editing farm animals?</p>
</sec>
<sec sec-type="methods" id="s2">
<title>Methods</title>
<sec>
<title>Approach</title>
<p>Historians have traditionally dismissed animals within their scholarship, arguably conveying that they were unimportant. This exclusion likely occurred because the history profession took shape during the latter half of the nineteenth century, a time when farm animals were largely driven out of cities (McNeur, <xref ref-type="bibr" rid="B94">2014</xref>; Atkins, <xref ref-type="bibr" rid="B10">2016</xref>; Robichaud, <xref ref-type="bibr" rid="B124">2019</xref>). Instead of treating animals as legitimate actors in shaping the past, historians of science viewed them as passive objects of study (Haraway, <xref ref-type="bibr" rid="B64">1989</xref>) or, for agricultural historians, as mere economic inputs (Randhawa, <xref ref-type="bibr" rid="B120">1986</xref>). The more recent shift to accepting that animals do matter can be attributed to the rise of animal rights activism of the 1970s (Singer, <xref ref-type="bibr" rid="B142">1975</xref>) and scientific concern about the biodiversity crisis of the 1980s (Wilson, <xref ref-type="bibr" rid="B183">1988</xref>). In response, historians have begun to examine the roles of animals in history, concluding that the past looks quite different when centering animals as subjects with needs, desires, and abilities (Ritvo, <xref ref-type="bibr" rid="B122">1987</xref>; Kr&#x000FC;ger et al., <xref ref-type="bibr" rid="B84">2014</xref>). This new emphasis on non-human animals as co-creating the past has made &#x0201C;animal history&#x0201D; a distinct sub-field. Animal historians argue that we better understand continuity and change over time by investigating human-animal interactions, rather than analyzing people and power alone (Fitzgerald et al., <xref ref-type="bibr" rid="B45">2018</xref>; Way et al., <xref ref-type="bibr" rid="B173">2020</xref>).</p>
<p>The approaches of animal history are interdisciplinary because animals held myriad roles within society. Animal-focused scientists&#x02014;such as veterinarians, ethologists, ecologists, and animal welfare researchers&#x02014;have developed methods to better comprehend non-human sentience and sociability. Historians apply these insights to analyze how animals themselves experienced the past; for example, when interpreting the urban presence of street dogs before twentieth-century leash laws were enforced (Wang, <xref ref-type="bibr" rid="B172">2019</xref>). Animal historians also rely on the work of philosophers and theorists to point out moments of &#x0201C;non-human agency&#x0201D; when animals helped or hindered human actions. For instance, the antislavery and animal protection movements during the nineteenth century based their moral outrage about plantation agriculture on the shared bodily suffering of enslaved Africans and draft animals (Boisseron, <xref ref-type="bibr" rid="B14">2018</xref>). The discipline can provide additional insights by employing anthropocentric archives from non-traditional perspectives, such as reading government reports about war or journal entries about frontier life &#x0201C;against the grain&#x0201D; to obtain textual traces about the lives of horses or oxen (Tucker and Russell, <xref ref-type="bibr" rid="B162">2004</xref>; Ahmad, <xref ref-type="bibr" rid="B2">2016</xref>). The cumulative effect has been to reconstruct multispecies stories that question human exceptionalism, as well as highlight the interdependency between animals and people (Walker, <xref ref-type="bibr" rid="B171">2013</xref>; Nance, <xref ref-type="bibr" rid="B102">2015</xref>).</p>
</sec>
<sec>
<title>Review</title>
<p>Our review of the animal history literature involved a three-phase process [see diagram in <xref ref-type="fig" rid="F2">Figure 2</xref>; Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) model; Page et al., <xref ref-type="bibr" rid="B111">2021</xref>]. We began the identification phase in July&#x02013;August 2021 using search engines, databases, and targeted journals to gather sources. One researcher (Wright) conducted English- and Spanish-language searches on Google Scholar and WorldCat based on a combination of key words: animal history, cattle, pigs, sheep, horses, livestock breeding, historia de animales, historia de vacas, historia de ovejas, historia de cerdos, historia de caballos, and historia de ganaderia. Wright reviewed the first 50 results among thousands listed (Godin et al., <xref ref-type="bibr" rid="B59">2015</xref>). Wright also completed English-language searches in the journals of <italic>Agricultural History, Agricultural History Review, Environment and History, Environmental History, ISIS, Journal of the History of Biology</italic>, and <italic>Technology and Culture</italic> due to the prevalence of animal history scholarship within those publications. Another researcher (Tworek) conducted German-language searches in H-Soz-Kult with the key words: Tiergeschichte, Kuh, K&#x000FC;he, Pferd, Pferde, Schwein, Schweine, Sch&#x000E4;fe, Stier, Stiere, and Zucht. The searches resulted in 5,362 records total.</p>
<fig id="F2" position="float">
<label>Figure 2</label>
<caption><p>Three-phase systematic review process depicting number of searches (s), number of records screened (<italic>n</italic>), and included in the final synthesis. &#x0002A;It was unmanageable to review entire Google Scholar and WorldCat searches (Godin et al., <xref ref-type="bibr" rid="B59">2015</xref>) so the first 50 hits were screened for potential records in the search results. <sup>&#x02020;</sup>Targeted journals included: <italic>Agricultural History, Agricultural History Review, Environment and History, Environmental History, ISIS, Journal of the History of Biology, Studies in History and Philosophy of Science, and Technology and Culture</italic>. Diagram from: Page et al. (<xref ref-type="bibr" rid="B111">2021</xref>).</p></caption>
<graphic mimetype="image" mime-subtype="tiff" xlink:href="fsufs-06-938085-g0002.tif"/>
</fig>
<p>During the screening phase (September&#x02013;October 2021), we read each synopsis and table of contents in books, as well as abstracts in articles, based on the eligibility criteria as noted in <xref ref-type="table" rid="T1">Table 1</xref>. After removing duplicates (<italic>n</italic> = 2,538), we excluded records for non-scholarly publications (<italic>n</italic> = 159), being unavailable in English, Spanish, or German (<italic>n</italic> = 8), not employing animal history methodologies (<italic>n</italic> = 2,455) and centering non-farm animals (<italic>n</italic> = 105). We then read the full text and excluded records that did not relate to gene editing or biotechnology (<italic>n</italic> = 15). We used hand searching, or adding citations from other sources in which they were cited, which resulted in 39 additional records. Collectively, 136 total sources met our inclusion criteria.</p>
<table-wrap position="float" id="T1">
<label>Table 1</label>
<caption><p>Eligibility criteria for review.</p></caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th valign="top" align="left"><bold>Inclusion criteria</bold></th>
<th valign="top" align="left"><bold>Exclusion criteria</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">&#x02022; Scholarly book, article, dissertation, or thesis <break/>&#x02022; Available in English, Spanish, or German language <break/>&#x02022; Study employs &#x0201C;animal history&#x0201D; methodologies (i.e., treats non-human animals as historical agents) <break/>&#x02022; Study centers farm animals (i.e., cows, sheep, pigs, water buffaloes, and horses) <break/>&#x02022; Applicable lessons for gene editing or other biotechnologies</td>
<td valign="top" align="left">&#x02022; Non-scholarly publication <break/>&#x02022; Unavailable in English, Spanish, or German language <break/>&#x02022; Study does not employ &#x0201C;animal history&#x0201D; methodologies <break/>&#x02022; Study centers non-farm animals <break/>&#x02022; Not applicable to gene editing or other biotechnologies</td>
</tr>
</tbody>
</table>
</table-wrap>
</sec>
</sec>
<sec sec-type="results" id="s3">
<title>Results</title>
<p>Before turning to a qualitative synthesis of these sources, a brief quantitative analysis demonstrates the tremendous intellectual energy in, and diversity of, animal history. Of those studies included in the review, 52% (<italic>n</italic> = 71) were published within the last 10 years, offering the ability to answer research questions that were not possible a decade ago during public debates about using transgenic techniques to produce genetically modified organisms. In descending order by region for those studies bounded in a single country, Europe made up the largest share at 25% (<italic>n</italic> = 34), North America was 17% (<italic>n</italic> = 23), Latin America and the Caribbean were 13% (<italic>n</italic> = 18), Asia and Australasia were 11% (<italic>n</italic> = 15), and Africa was 7% (<italic>n</italic> = 10). Moreover, 27% (<italic>n</italic> = 36) of the studies were transnational or comparative. We periodized studies based on their temporal coverage (see <xref ref-type="table" rid="T2">Table 2</xref>) into three distinct eras: Agro-Pastoral (Earliest Times-1700 CE) (<italic>n</italic> = 25), Imperial State (1700&#x02013;1945) (<italic>n</italic> = 82), and Welfare State (1945-Present) (<italic>n</italic> = 29). Taken together, the studies we reviewed demonstrate how larger structural forces in agriculture shaped animal bodies (conformation) over time and across space, despite farm animals sometimes resisting or confounding these changes (Greene, <xref ref-type="bibr" rid="B60">2009</xref>). We now turn to a narrative to explore our findings.</p>
<table-wrap position="float" id="T2">
<label>Table 2</label>
<caption><p>Characteristics (y-axis) of human-animal relationships in agriculture across three eras (x-axis).</p></caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th/>
<th valign="top" align="left"><bold>Agro-pastoral</bold><break/><bold> (earliest times-1700 CE)</bold></th>
<th valign="top" align="left"><bold>Imperial state</bold><break/><bold> (1700&#x02013;1945)</bold></th>
<th valign="top" align="left"><bold>Welfare state</bold><break/><bold> (1945-Present)</bold></th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left"><bold>Livestock breeding</bold></td>
<td valign="top" align="left">Unconscious selection of traits (selective hunting, altering environments, labor demands, husbandry practices, etc.)</td>
<td valign="top" align="left">Methodical selection for production traits</td>
<td valign="top" align="left">Selection increasingly mediated by biotechnologies (AI, IVF, cloning, etc.)</td>
</tr>
<tr>
<td valign="top" align="left"><bold>Animal bodies</bold></td>
<td valign="top" align="left">Multi-purpose generalists: food, labor, transportation, ceremony</td>
<td valign="top" align="left">Specialized toward one purpose; greater consistency of type</td>
<td valign="top" align="left">Acceleration of biological changes across generations due to scientific understanding of genotypes (quantitative genetics, molecular genetics, etc.)</td>
</tr>
<tr>
<td valign="top" align="left"><bold>Key ideologies</bold></td>
<td valign="top" align="left">Diverse depending on place and political structure</td>
<td valign="top" align="left">For colonial elites, social hierarchies imposed on breeds and reinforced by animal improvement</td>
<td valign="top" align="left">Regardless of ideological commitments, agricultural intensification sought for food security&#x02014;and thus political legitimacy</td>
</tr>
<tr>
<td valign="top" align="left"><bold>Key spaces</bold></td>
<td valign="top" align="left">Local environments shaped animal traits and constitution (i.e., &#x0201C;every soil has its stock&#x0201D;)</td>
<td valign="top" align="left">Empires sent &#x0201C;improved&#x0201D; animal breeds to different environments to upgrade &#x0201C;native&#x0201D; stock</td>
<td valign="top" align="left">Laboratories become breeding sites for genetic engineering of desired traits</td>
</tr>
<tr>
<td valign="top" align="left"><bold>Key practices</bold></td>
<td valign="top" align="left">Culling and castration shaped characteristics of herds, flocks, etc.; feeding and grazing on the commons created more intermixing among animals</td>
<td valign="top" align="left">With global movement of animals, state veterinarian services established to help control livestock epizootics (rinderpest, hog cholera, sheep pox, etc.) with quarantines, slaughtering, and inoculations.</td>
<td valign="top" align="left">Regulatory agencies grow in size and strength to ensure food safety based on technical concerns</td>
</tr>
<tr>
<td valign="top" align="left"><bold>Public involvement</bold></td>
<td valign="top" align="left">Concern about livelihoods since most people practiced forms of animal husbandry</td>
<td valign="top" align="left">Concern about animal cruelty (e.g., live animal transport) and animal diseases (e.g., cull-and-slaughter measures)</td>
<td valign="top" align="left">Concern about animal welfare, sustainability, food justice even though fewer people in agriculture</td>
</tr>
<tr>
<td valign="top" align="left"><bold>Case study</bold></td>
<td valign="top" align="left">Sty feeding in medieval China vs. pannage in medieval Europe influenced porcine constitution</td>
<td valign="top" align="left">Mutton and wool trade in Australasia and Greater Pacific for improved sheep</td>
<td valign="top" align="left">Artificial insemination and frozen bull semen led to Holsteinization of global dairy industry</td>
</tr>
<tr>
<td valign="top" align="left"><bold>Included sources</bold></td>
<td valign="top" align="left">Russell, <xref ref-type="bibr" rid="B130">1987</xref>; Del R&#x000ED;o Moreno, <xref ref-type="bibr" rid="B33">1996</xref>; Malcolmson and Mastoris, <xref ref-type="bibr" rid="B90">1998</xref>; Hribal, <xref ref-type="bibr" rid="B73">2003</xref>; Netz, <xref ref-type="bibr" rid="B104">2004</xref>; Terrisse, <xref ref-type="bibr" rid="B156">2004</xref>; Wood and Orel, <xref ref-type="bibr" rid="B186">2005</xref>; Albarella et al., <xref ref-type="bibr" rid="B4">2007</xref>; Wood, <xref ref-type="bibr" rid="B185">2007</xref>; Ajmone-Marsan et al., <xref ref-type="bibr" rid="B3">2010</xref>; Costlow and Nelson, <xref ref-type="bibr" rid="B26">2010</xref>; Glagoleva, <xref ref-type="bibr" rid="B57">2010</xref>; McInerney, <xref ref-type="bibr" rid="B93">2010</xref>; White, <xref ref-type="bibr" rid="B176">2011</xref>; J&#x000F8;rgensen, <xref ref-type="bibr" rid="B75">2013</xref>; Mikhail, <xref ref-type="bibr" rid="B97">2014</xref>; Poczai et al., <xref ref-type="bibr" rid="B118">2014</xref>; Wiley, <xref ref-type="bibr" rid="B181">2014</xref>; Kumar et al., <xref ref-type="bibr" rid="B85">2015</xref>; Kreiner, <xref ref-type="bibr" rid="B82">2017</xref>, <xref ref-type="bibr" rid="B83">2020</xref>; Bray, <xref ref-type="bibr" rid="B17">2018</xref>; Schwartz, <xref ref-type="bibr" rid="B139">2018</xref>; Sterckx et al., <xref ref-type="bibr" rid="B151">2018</xref>; Osypi&#x00144;ska and Zurawski, <xref ref-type="bibr" rid="B110">2020</xref>; Sand, <xref ref-type="bibr" rid="B132">2021</xref></td>
<td valign="top" align="left">Ritvo, <xref ref-type="bibr" rid="B122">1987</xref>, <xref ref-type="bibr" rid="B123">2010</xref>; Wilcox, <xref ref-type="bibr" rid="B177">1992</xref>, <xref ref-type="bibr" rid="B178">1999</xref>, <xref ref-type="bibr" rid="B179">2008</xref>, <xref ref-type="bibr" rid="B180">2017</xref>; Melville, <xref ref-type="bibr" rid="B95">1997</xref>; Amaral, <xref ref-type="bibr" rid="B5">1998</xref>; Li, <xref ref-type="bibr" rid="B88">2000</xref>; Hern&#x000E1;ndez, <xref ref-type="bibr" rid="B66">2001</xref>; Zarrilli, <xref ref-type="bibr" rid="B196">2001</xref>; Grundy, <xref ref-type="bibr" rid="B61">2002</xref>; Thurtle, <xref ref-type="bibr" rid="B161">2002</xref>; Derry, <xref ref-type="bibr" rid="B35">2003</xref>, <xref ref-type="bibr" rid="B36">2015</xref>, <xref ref-type="bibr" rid="B38">2020</xref>; Anderson, <xref ref-type="bibr" rid="B7">2004</xref>; Crosby, <xref ref-type="bibr" rid="B28">2004</xref>; Elofson, <xref ref-type="bibr" rid="B42">2004</xref>; Orland, <xref ref-type="bibr" rid="B108">2004</xref>; Schrepfer and Scranton, <xref ref-type="bibr" rid="B138">2004</xref>; Bankoff et al., <xref ref-type="bibr" rid="B12">2007</xref>; Kevles, <xref ref-type="bibr" rid="B77">2007</xref>; Fitzgerald, <xref ref-type="bibr" rid="B46">2008</xref>; Fl&#x000F3;rez-Malag&#x000F3;n et al., <xref ref-type="bibr" rid="B48">2008</xref>; Gaudilliere et al., <xref ref-type="bibr" rid="B56">2009</xref>; Greene, <xref ref-type="bibr" rid="B60">2009</xref>; Van Ausdal, <xref ref-type="bibr" rid="B167">2009</xref>, <xref ref-type="bibr" rid="B168">2012</xref>; Appuhn, <xref ref-type="bibr" rid="B9">2010</xref>; Brown and Gilfoyle, <xref ref-type="bibr" rid="B19">2010</xref>; Milne, <xref ref-type="bibr" rid="B98">2010</xref>; Nelson, <xref ref-type="bibr" rid="B103">2010</xref>; Swart, <xref ref-type="bibr" rid="B153">2010a</xref>,<xref ref-type="bibr" rid="B154">b</xref>; Knab, <xref ref-type="bibr" rid="B79">2011</xref>; Matz, <xref ref-type="bibr" rid="B91">2011a</xref>,<xref ref-type="bibr" rid="B92">b</xref>; Russell, <xref ref-type="bibr" rid="B129">2011</xref>; Weisiger, <xref ref-type="bibr" rid="B175">2011</xref>; Lopes and Riguzzi, <xref ref-type="bibr" rid="B89">2012</xref>; Mishra, <xref ref-type="bibr" rid="B99">2012</xref>; Woods R. J. H., <xref ref-type="bibr" rid="B190">2012</xref>; Breen, <xref ref-type="bibr" rid="B18">2013</xref>; Garc&#x000ED;a Garagarza, <xref ref-type="bibr" rid="B54">2013</xref>; Peden, <xref ref-type="bibr" rid="B115">2013</xref>; Skabelund, <xref ref-type="bibr" rid="B143">2013</xref>; Fischer, <xref ref-type="bibr" rid="B44">2015</xref>; Mwatwara and Swart, <xref ref-type="bibr" rid="B100">2015</xref>; Tyrrell, <xref ref-type="bibr" rid="B163">2015</xref>, <xref ref-type="bibr" rid="B164">2018</xref>, <xref ref-type="bibr" rid="B165">2019</xref>; Uribe Mendoza, <xref ref-type="bibr" rid="B166">2015</xref>; Woods, <xref ref-type="bibr" rid="B191">2015</xref>, <xref ref-type="bibr" rid="B192">2017a</xref>,<xref ref-type="bibr" rid="B193">b</xref>; Brown, <xref ref-type="bibr" rid="B20">2016</xref>; Hove and Swart, <xref ref-type="bibr" rid="B71">2016</xref>; Pawley, <xref ref-type="bibr" rid="B112">2016</xref>, <xref ref-type="bibr" rid="B113">2018</xref>, <xref ref-type="bibr" rid="B114">2020</xref>; Pelozatto Reilly, <xref ref-type="bibr" rid="B116">2016</xref>; Rosenberg, <xref ref-type="bibr" rid="B125">2016</xref>, <xref ref-type="bibr" rid="B126">2017</xref>, <xref ref-type="bibr" rid="B127">2020</xref>; Saha, <xref ref-type="bibr" rid="B131">2016</xref>; Saraiva, <xref ref-type="bibr" rid="B133">2016</xref>; Specht, <xref ref-type="bibr" rid="B149">2016</xref>, <xref ref-type="bibr" rid="B150">2020</xref>; Del Rosario Garc&#x000ED;a Huerta and Ruiz G&#x000F3;mez, <xref ref-type="bibr" rid="B34">2017</xref>; LeCain, <xref ref-type="bibr" rid="B87">2017</xref>; Cushing, <xref ref-type="bibr" rid="B30">2018</xref>; Ford, <xref ref-type="bibr" rid="B50">2018</xref>; Mendoza, <xref ref-type="bibr" rid="B96">2018</xref>; Zelinger, <xref ref-type="bibr" rid="B197">2018</xref>, <xref ref-type="bibr" rid="B198">2019</xref>; Donald, <xref ref-type="bibr" rid="B41">2019</xref>; Conz, <xref ref-type="bibr" rid="B25">2020</xref>; Kirchberger, <xref ref-type="bibr" rid="B78">2020</xref>; Sunseri, <xref ref-type="bibr" rid="B152">2021</xref>; Wedekind, <xref ref-type="bibr" rid="B174">2021</xref></td>
<td valign="top" align="left">Howkins and Merricks, <xref ref-type="bibr" rid="B72">2000</xref>; Bieleman, <xref ref-type="bibr" rid="B13">2005</xref>; Brassley, <xref ref-type="bibr" rid="B15">2007</xref>; Franklin, <xref ref-type="bibr" rid="B51">2007</xref>; Wilmot, <xref ref-type="bibr" rid="B182">2007</xref>; Theunissen, <xref ref-type="bibr" rid="B158">2008</xref>, <xref ref-type="bibr" rid="B159">2012</xref>, <xref ref-type="bibr" rid="B160">2020</xref>; Langston, <xref ref-type="bibr" rid="B86">2010</xref>; Smith-Howard, <xref ref-type="bibr" rid="B146">2010</xref>, <xref ref-type="bibr" rid="B147">2017a</xref>,<xref ref-type="bibr" rid="B148">b</xref>; Woods A., <xref ref-type="bibr" rid="B188">2012</xref>; Sayer, <xref ref-type="bibr" rid="B135">2013</xref>; Saucier and Parsons, <xref ref-type="bibr" rid="B134">2014</xref>; Smith, <xref ref-type="bibr" rid="B145">2014</xref>; Garc&#x000ED;a-Sancho, <xref ref-type="bibr" rid="B55">2015</xref>; Funes-Monzote, <xref ref-type="bibr" rid="B52">2016</xref>; Schmalzer, <xref ref-type="bibr" rid="B136">2016</xref>; Villanueva, <xref ref-type="bibr" rid="B169">2017</xref>; Derry, <xref ref-type="bibr" rid="B37">2018</xref>; Schneider, <xref ref-type="bibr" rid="B137">2018</xref>; Anderson, <xref ref-type="bibr" rid="B6">2019</xref>; Fleischman, <xref ref-type="bibr" rid="B47">2020</xref>; Funes-Monzote and Palmer, <xref ref-type="bibr" rid="B53">2020</xref>; Kassen, <xref ref-type="bibr" rid="B76">2020</xref>; Settele, <xref ref-type="bibr" rid="B140">2020</xref>; Woods, <xref ref-type="bibr" rid="B189">2022</xref></td>
</tr>
</tbody>
</table>
</table-wrap>
<sec>
<title>Agro-pastoral period (earliest times-1700 CE)</title>
<p>Because livestock performed myriad functions within human societies, selection pressures on animals were broad. For instance, Bray (<xref ref-type="bibr" rid="B17">2018</xref>) has argued that medieval Chinese officials placed more value on cattle, sheep, and pigs for their workforce or ceremonial needs than as sources of nutrition. Agricultural treatises (<italic>nongshu</italic> <inline-graphic xlink:href="fsufs-06-938085-i0001.tif"/>) written during the Song dynasty (960&#x02013;1279 CE) considered livestock as inferior to crops. Unlike European mixed farming systems in which livestock manure connected animal husbandry to crop growing, Chinese farming was cereal-intensive with legumes used to enrich fields (Sterckx et al., <xref ref-type="bibr" rid="B151">2018</xref>). As Mikhail (<xref ref-type="bibr" rid="B97">2014</xref>) has detailed, the most valuable animal in Ottoman Egypt was the <italic>j&#x00101;musa</italic>, or water buffalo, as this multi-purpose creature provided labor, transportation, and sustenance. Egyptian peasants in the 1500s relied on buffalo cows to dig and dredge irrigation canals, carry grain to sovereigns, turn waterwheels, plow soil, and provide milk&#x02014;resulting in unconscious selecting for a broad suite of traits. The adoption of steam engines with coal power in the nineteenth century finally lessened the longstanding need for bulkier livestock with traits for muscle power (Hribal, <xref ref-type="bibr" rid="B73">2003</xref>; Greene, <xref ref-type="bibr" rid="B60">2009</xref>).</p>
<p>Animal bodies and behaviors were as diverse as the polities they encountered (Kreiner, <xref ref-type="bibr" rid="B82">2017</xref>). The flexibility of domesticated pigs allowed them to fit into many places and political structures (Albarella et al., <xref ref-type="bibr" rid="B4">2007</xref>). Take, for example, porcine typologies in the Pacific World. Voyagers from New Guinea and Southeast Asia traveling in outrigger canoes brought their pigs when populating remote Oceania circa 3,000 years ago (Sand, <xref ref-type="bibr" rid="B132">2021</xref>). Across the Polynesian islands, commoners kept the &#x0201C;village pig&#x0201D;&#x02014;a pig with a small, slim, and hairy conformation&#x02014;to scavenge until the rare occasion when the king or chief rounded up all the pigs for a festival. In contrast, starting in the sixteenth century on the Kyukyu islands, Okinawan families kept the &#x0201C;house pig&#x0201D;&#x02014;a pig that was somewhat larger, rounder, and pot-bellied&#x02014;to preserve diplomatic ties with Chinese officials, who had ancient proscriptions against eating draft animals like oxen (Sand, <xref ref-type="bibr" rid="B132">2021</xref>). This example provides evidence that pig &#x0201C;types&#x0201D; varied depending on the political arrangements in which an animal population was embedded (Osypi&#x00144;ska and Zurawski, <xref ref-type="bibr" rid="B110">2020</xref>).</p>
<p>Aside from the body politic, biological changes to farm animals like dairy cattle resulted in reciprocal changes in humans. Kumar et al. (<xref ref-type="bibr" rid="B85">2015</xref>) has noted that multiple ancient texts of India offered practical advice on cattle breeding, including the Hindu treatise <italic>Vishnu Purana</italic> (circa 200 CE) that stated a valuable bull was the offspring of a heavy milker, had sturdy limbs, and proved capable of protecting the entire herd&#x02014;revealing the value systems of South Asian dairying culture. McInerney (<xref ref-type="bibr" rid="B93">2010</xref>) has shown that ancient Greek pastoralists valued the coloration of cattle and tried to influence hide heredity through a system of castration and culling. For example, the third century BCE mathematician Archimedes used those breeding principles to calculate the herd size of four types&#x02014;milk white, dark, tawny, and dapple&#x02014;found in Homer&#x00027;s epic <italic>The Odyssey</italic> (McInerney, <xref ref-type="bibr" rid="B93">2010</xref>). By developing dairying culture, those human populations in sub-Saharan Africa, Europe, Middle East, and South Asia have high frequencies of gene mutations that allow for continued production into adulthood of the enzyme lactase, specialized for the digestion of the milk sugar lactose (Wiley, <xref ref-type="bibr" rid="B181">2014</xref>). Thus, the coevolutionary relationship between people and animals involved genetic changes in both directions.</p>
<p>Before a system of breed improvement began in the eighteenth century, human control over livestock was often tenuous; feral cattle and pigs often interbred with wild relatives such as aurochs or boars (Ajmone-Marsan et al., <xref ref-type="bibr" rid="B3">2010</xref>; Kreiner, <xref ref-type="bibr" rid="B82">2017</xref>). The Spanish term <italic>cimarrones</italic>, or literally the &#x0201C;wild ones&#x0201D;, was originally applied to stray livestock (Del R&#x000ED;o Moreno, <xref ref-type="bibr" rid="B33">1996</xref>; Hribal, <xref ref-type="bibr" rid="B73">2003</xref>). Because pigs were known for their delinquency&#x02014;eating crops, raiding food stores, defiling gravesites, injuring people&#x02014;medieval communities in Europe adopted rules that the animal&#x00027;s proprietor was responsible for damages, with fines applied for wandering animals (J&#x000F8;rgensen, <xref ref-type="bibr" rid="B75">2013</xref>). For instance, a 1649 Code of Laws in Russia penalized livestock owners for animal-related losses (Glagoleva, <xref ref-type="bibr" rid="B57">2010</xref>). Structural changes between 1550 and 1700 enabled English farmers to have tighter command over livestock breeding. Enclosing the &#x0201C;commons&#x0201D; with fences gave breeders control over which individual farm animal could mate in a flock or herd (Netz, <xref ref-type="bibr" rid="B104">2004</xref>). The importation of new fodder crops&#x02014;clovers, ryegrass, turnips&#x02014;and the drainage of &#x0201C;water meadows&#x0201D; for more arable land facilitated improved animal diets (Russell, <xref ref-type="bibr" rid="B130">1987</xref>). Better animal nutrition, in turn, meant livestock reached sexual maturity faster&#x02014;thereby shorting generation intervals. These external shifts allowed European breeders to reproduce phenotypes more consistently in farm animals (Wood and Orel, <xref ref-type="bibr" rid="B186">2005</xref>; Poczai et al., <xref ref-type="bibr" rid="B118">2014</xref>).</p>
<p>Crossbreeding to create another typology, the &#x0201C;capitalist pig,&#x0201D; provides a clear example of the shift from unconscious to methodical selection (White, <xref ref-type="bibr" rid="B176">2011</xref>). Feeding practices unintentionally shaped porcine bodies over millennia; in medieval Europe, hogs were let loose in forests to scavenge for acorns and beechnuts, known as pannage, resulting in a lean and hardy physique (Malcolmson and Mastoris, <xref ref-type="bibr" rid="B90">1998</xref>; Kreiner, <xref ref-type="bibr" rid="B83">2020</xref>). In contrast, Chinese hogs were fed human food scraps and housed in pens that restricted their movements, leading to a rounder body type and fattier meat. Around 1700, British breeders began importing pigs from China for crossing with their own stock. The resulting breeds, including Yorkshire, Berkshire, and Suffolk hogs, combined the characteristics of the two types: better able to withstand living in crowded pens and reach slaughter weight quickly (see <xref ref-type="fig" rid="F3">Figure 3</xref>). As White (<xref ref-type="bibr" rid="B176">2011</xref>) has noted, these same physical qualities later allowed pork production to flourish under industrial capitalism. Biological innovation often preceded mechanical innovation as animals were often seen as technologies of industrialization (Russell, <xref ref-type="bibr" rid="B129">2011</xref>). This more mechanistic view toward animals and the rise of breed improvement set the stage for imperial states to globalize their approaches over the next few centuries.</p>
<fig id="F3" position="float">
<label>Figure 3</label>
<caption><p>Porcine typologies&#x02014;<bold>(A)</bold> the &#x0201C;pannage pig&#x0201D; of medieval Europe; <bold>(B)</bold> the &#x0201C;sty pig&#x0201D; of medieval China, and <bold>(C)</bold> the &#x0201C;capitalist pig&#x0201D; of improved breeds&#x02014;illustrated the shift from unconscious selection to methodical selection in animal breeding. Image Credits: The British Library Board: Shelfmark/Page: Add. 42130, f.19v, used with permission. The Memorial Edition of Thomas Bewick&#x00027;s Works, vol III: A General History of Quadrupeds (Newcastle-upon-Tyne: Bernard Quatich, 1885). Courtesy of Oberlin College Library.</p></caption>
<graphic mimetype="image" mime-subtype="tiff" xlink:href="fsufs-06-938085-g0003.tif"/>
</fig>
</sec>
<sec>
<title>Imperial state period (1700-1945)</title>
<p>During this period, imperialism and capitalist industrialization combined to create more standardized approaches to genetic modification that sought to maximize economic productivity from animal bodies (Anderson, <xref ref-type="bibr" rid="B6">2019</xref>; Kassen, <xref ref-type="bibr" rid="B76">2020</xref>). Livestock breeders facilitated industrializing farms by seeking ways to alter farm animals to become more useful for intensive production (Fitzgerald, <xref ref-type="bibr" rid="B46">2008</xref>). Just as factories resulted in product standardization, animal bodies became more specialized and uniform, often to better serve a single purpose (e.g., for meat, milk, hide, or fleece; Schrepfer and Scranton, <xref ref-type="bibr" rid="B138">2004</xref>; Pawley, <xref ref-type="bibr" rid="B112">2016</xref>). Breeders focused on selecting for production traits, such as maximizing weight gain which reduced time to slaughter, thus serving economic goals. English tenant farmer Robert Bakewell (1725-1795) is often credited with developing the methods for breed improvement (Woods, <xref ref-type="bibr" rid="B193">2017b</xref>). Bakewell used in-breeding, or mating closely related animals, for greater consistency of type in his pursuit of &#x0201C;improved&#x0201D; breeds. By the nineteenth century, intellectual property in living things&#x02014;namely stud animals&#x02014;was protected through breeding associations and registered pedigrees (Kevles, <xref ref-type="bibr" rid="B77">2007</xref>). The ability to protect and promote these breeds was facilitated by growth in urban centers connected by railroad networks, enabling the formation of national markets (Matz, <xref ref-type="bibr" rid="B91">2011a</xref>). A clear example of this occurred in 1806 in Switzerland where the Council of Bern created local stud books and organized cattle exhibitions. At national shows, breeders developed shared definitions for what made one group of animals distinct from another. These ideals could then become further standardized by codifying them in pedigrees; in 1874, Swiss breeders created the first herd book <italic>Schweizer Braunvieh Rasse</italic> (Swiss Brown Race) to lay out criteria for the pursuit of an archetype (Orland, <xref ref-type="bibr" rid="B108">2004</xref>).</p>
<p>Imperial states reinforced the market expansion of improved livestock (Mishra, <xref ref-type="bibr" rid="B99">2012</xref>; Fischer, <xref ref-type="bibr" rid="B44">2015</xref>; Kirchberger, <xref ref-type="bibr" rid="B78">2020</xref>). For beef cattle in the Americas, an oligopoly of US-based meatpackers drove breed selection from the Spanish-introduced Longhorns that were prevalent in the 1600s toward British-bred Herefords by the 1870s (Del Rosario Garc&#x000ED;a Huerta and Ruiz G&#x000F3;mez, <xref ref-type="bibr" rid="B34">2017</xref>). Longhorn cattle, first joining conquistadors on expeditions from the Iberian Peninsula, underwent a process of feralization over the following 80&#x02013;200 generations as Spanish imperial administrators left these animals to fend for themselves on the open range from Mexico to the R&#x000ED;o de la Plata until they were rounded back up for slaughter (Zarrilli, <xref ref-type="bibr" rid="B196">2001</xref>; Garc&#x000ED;a Garagarza, <xref ref-type="bibr" rid="B54">2013</xref>; Specht, <xref ref-type="bibr" rid="B149">2016</xref>; LeCain, <xref ref-type="bibr" rid="B87">2017</xref>). Both the gauchos of the Argentine pampas and cowboys of the Canadian prairies came to rely on the Spanish Longhorn, a hardy and independent breed that could defend itself with its sharp, scimitar-like horns from predators like jaguars or wolves and withstand being driven long distances on horseback to market (Elofson, <xref ref-type="bibr" rid="B42">2004</xref>; Hern&#x000E1;ndez, <xref ref-type="bibr" rid="B66">2001</xref>; Pelozatto Reilly, <xref ref-type="bibr" rid="B116">2016</xref>). But as Specht (<xref ref-type="bibr" rid="B150">2020</xref>) has revealed, Chicago&#x00027;s Beef Trust&#x02014;dominated by a small group of firms like Armor, Swift, and Morris&#x02014;wanted animals that gained weight quickly and held fatty flesh; in contrast, Longhorns, when butchered, were known for lean and stringy meat. Chicago&#x00027;s Beef Trust decided to preferentially choose Hereford cattle. The resulting market force led to near universal adoption of the Hereford breed, achieved by exporting bulls from Britain to the North American West and the South American countries of Argentina and Uruguay, where Chicago&#x00027;s Beef Trust owned subsidiaries (Grundy, <xref ref-type="bibr" rid="B61">2002</xref>). This example illustrates how larger structural forces, like economic centralization under capitalism, influenced breeding decisions.</p>
<p>This period also saw the rise of public institutions and campaigns against animal cruelty that laid the groundwork for resistance to certain agricultural interventions. Brutality toward animals going to market was one such example that spurred public concern for more humane treatment. In 1824, the Royal Society for the Prevention of Cruelty to Animals (RSPCA) formed to enforce a new law in Britain that fined drovers and butchers for flagrant abuses to livestock (Li, <xref ref-type="bibr" rid="B88">2000</xref>). As Donald (<xref ref-type="bibr" rid="B41">2019</xref>) has reported, over 70% of RSPCA membership by the late nineteenth century was women&#x02014;reflecting an empathy developed for sentient creatures who also suffered under male domination. For instance, RSPCA member Frances Maria Thompson was distraught after seeing cattle and sheep driven to the London&#x00027;s Smithfield market in a &#x0201C;pitiable state&#x0201D; (Donald, <xref ref-type="bibr" rid="B41">2019</xref>, p. 77). Gendered forms of animal protection also sprung up elsewhere in the British Empire, including in New South Wales which served as a major source of live animal exports to South Africa and India. Critics spoke about the harsh conditions for livestock&#x02014;overcrowding below the ship&#x00027;s deck and a lack of water&#x02014;on long oceanic voyages (Cushing, <xref ref-type="bibr" rid="B30">2018</xref>). Some commercial freighters responded by developing better-equipped vessels; the <italic>Mary Mildred</italic> featured two hemp ropes on the top deck so cattle could walk around and have fresh air, plus moveable troughs for drinking. New technologies helped to assuage instead of abolish unsettling practices (for anticruelty legislation in the Russian Empire, see Nelson, <xref ref-type="bibr" rid="B103">2010</xref>).</p>
<p>With live animal trade, the increased risk of epizootics crossing borders encouraged state veterinary services to control diseases through quarantines, compulsory slaughters, and inoculations (Appuhn, <xref ref-type="bibr" rid="B9">2010</xref>; Brown and Gilfoyle, <xref ref-type="bibr" rid="B19">2010</xref>; Knab, <xref ref-type="bibr" rid="B79">2011</xref>; Uribe Mendoza, <xref ref-type="bibr" rid="B166">2015</xref>; Ford, <xref ref-type="bibr" rid="B50">2018</xref>). In 1914, when 20,000 cattle died from a rinderpest outbreak in Manchuria, Japanese veterinarians blamed the &#x0201C;callousness of the Chinese&#x0201D; for infections (Perrins, <xref ref-type="bibr" rid="B117">2010</xref>, p. 158). In response, the Japanese-owned South Manchuria Railway established the Cattle Disease Research Institute, which implemented a mandatory immunization program of Chinese herds through mobile veterinary corps. Like Japanese veterinarians in East Asia, US veterinarians denigrated Mexicans through the animals they handled. In 1911, the Bureau of Animal Industry (BIA) constructed the first federally funded fence along the US-Mexico divide to limit the spread of the tick-borne cattle illness called Texas fever (Mendoza, <xref ref-type="bibr" rid="B96">2018</xref>). Restricting the ability of &#x0201C;diseased Mexican cattle&#x0201D; to freely cross the border allowed BIA officials to inspect herds at ports-of-entry and, if needed, direct them to dipping stations (Lopes and Riguzzi, <xref ref-type="bibr" rid="B89">2012</xref>). To avoid the challenges associated with live animal quarantine, Leibig&#x00027;s Extract of Meat Company in German South West Africa (modern-day Namibia) began exporting beef extract and cubes in 1906 made from &#x0201C;scrub&#x0201D; Zebu cattle (Sunseri, <xref ref-type="bibr" rid="B152">2021</xref>). Veterinary knowledge about animals served to ameliorate perceived and real challenges that came with the imperial expansion of animals (Kr&#x000E4;tli, <xref ref-type="bibr" rid="B81">2010</xref>; Skabelund, <xref ref-type="bibr" rid="B143">2013</xref>; Brown, <xref ref-type="bibr" rid="B20">2016</xref>; Ford, <xref ref-type="bibr" rid="B50">2018</xref>; Conz, <xref ref-type="bibr" rid="B25">2020</xref>; Wedekind, <xref ref-type="bibr" rid="B174">2021</xref>).</p>
<p>Social hierarchies created to justify empires profoundly influenced animal husbandry (Thurtle, <xref ref-type="bibr" rid="B161">2002</xref>; Tyrrell, <xref ref-type="bibr" rid="B163">2015</xref>; Zelinger, <xref ref-type="bibr" rid="B198">2019</xref>). The importation of foreign beef cattle to Brazil provides an example of how race and xenophobia affected breeding practices. After slavery was abolished in Brazil in 1888, the national government&#x02014;controlled by descendants of Portuguese settlers&#x02014;initiated a policy of <italic>branqueamento</italic>, or &#x0201C;whitening&#x0201D;, among the majority African and Amerindian population (Agier, <xref ref-type="bibr" rid="B1">1995</xref>). Just as state officials encouraged human immigration from Europe to &#x0201C;improve the race&#x0201D;, cattle breeders imported Herefords, Shorthorns, and other purebred European stock to cross with their native &#x0201C;creole&#x0201D; herds. However, as Wilcox (<xref ref-type="bibr" rid="B180">2017</xref>) has noted, cattle improvement schemes were limited by the realities of tropical ranching in Latin America. Instead of choosing temperate breeds, ranchers in the Brazilian state of Mato Grosso brought in humped Zebu bulls from India. Ranchers in tropical Brazil and Colombia observed advantages with Zebus given the hotter climates; their lighter and short haired hides were better adapted to warm temperatures (Fl&#x000F3;rez-Malag&#x000F3;n et al., <xref ref-type="bibr" rid="B48">2008</xref>; Van Ausdal, <xref ref-type="bibr" rid="B168">2012</xref>). Racialized thinking impeded acceptance, as exemplified by nationalist scientists like Assis Brasil and Eduardo Cotrim who disparaged the Indian breed as an &#x0201C;Asiatic plague&#x0201D; and &#x0201C;Hindu idol.&#x0201D; Nevertheless, Zebu crosses prevailed, becoming the standard for Brazilian stock by the mid-twentieth century. In this case, racial categories and nationalist pride initially hindered the adoption of better-adapted cattle breeds (for a related discussion on the whitening campaign in southern Rhodesia, see Hove and Swart, <xref ref-type="bibr" rid="B71">2016</xref>).</p>
<p>Class tensions and gender norms also shaped livestock breeding. If inbreeding methods meant &#x0201C;like begets like,&#x0201D; then nobility in Britain insisted that they should only marry within the landowning class to preserve social purity (Milne, <xref ref-type="bibr" rid="B98">2010</xref>). Because animal breeding involved controlling sexual reproduction to create offspring that served human ends, gendered ideas about what animal intercourse should, or should not, look like became part of the practice. Rosenberg (<xref ref-type="bibr" rid="B125">2016</xref>) has asserted that US agricultural experts used animal breeding to promote heteronormative sexuality in the rural countryside. In 1911 a pair of Colorado breeders wrote to <italic>Berkshire World and Corn Belt Stockman&#x00027;s</italic> columnist, A. J. Lovejoy, about a young boar that was more interested in mounting old boars than young sows. In response to the query, Lovejoy recommended the animal be castrated since he did not meet the cultural expectations of heterosexual reproduction. Similarly, Pawley (<xref ref-type="bibr" rid="B113">2018</xref>) has argued that livestock breeders in eighteenth-century Britain used extraordinary measures to overcome the seasonality of sheep intercourse based on popular understandings of women&#x00027;s sexuality. Commercial breeders made use of aphrodisiac herbs (i.e., turnips and saltwater grass) to prompt ewes&#x00027; sexual desires outside of the &#x0201C;blossoming&#x0201D; period between July and September when they normally went into estrus. Again, livestock breeding intersected with preexisting categories of race, class, and gender (Terrisse, <xref ref-type="bibr" rid="B156">2004</xref>; Ritvo, <xref ref-type="bibr" rid="B123">2010</xref>; Swart, <xref ref-type="bibr" rid="B154">2010b</xref>; Rosenberg, <xref ref-type="bibr" rid="B126">2017</xref>, <xref ref-type="bibr" rid="B127">2020</xref>).</p>
<p>Animals also subverted the hierarchies of empire. Saha (<xref ref-type="bibr" rid="B131">2016</xref>) has contended that cattle informed Burma&#x00027;s separation from British India. Burmese oxen had evolved to be a stockier build, given their use as draft animals, while Indian cows were a leaner, dairy type. Although British colonial officials sought to &#x0201C;improve&#x0201D; Burmese stock during the 1850s, they reversed course in the 1900s as rice hauling came to dominate commerce. When Burma split from British India in 1937, Burmese nationalists justified separation by pointing to different regional breeds. Like Burmese cattle, horses in southern Africa supported political autonomy. Swart (<xref ref-type="bibr" rid="B153">2010a</xref>) has argued that &#x0201C;Basotho ponies&#x0201D; became a distinctive type through the independence struggle of Basutoland (now Lesotho). Dutch Boers developed the utilitarian Cape horse, or &#x0201C;Caper&#x0201D;, in southern Africa with stock imported from across the world (Bankoff et al., <xref ref-type="bibr" rid="B12">2007</xref>). In 1806, when British imperial administrators had replaced the Dutch East Indies Company in managing the Cape Colony, English Thoroughbreds were the preferred breed for horse racing and status boasting. Indigenous peoples eventually described as &#x0201C;Sotho&#x0201D; had formed small chiefdoms to the north. King Moshoeshoe adopted horses of the colonists, using newfound equine mobility to consolidate black African groups under a centralized mountain stronghold, Thaba Bosiu, by the early nineteenth century (Swart, <xref ref-type="bibr" rid="B153">2010a</xref>). The characteristics of the Basotho horse were the result of both natural and artificial section; the former led to compact animals with strong hooves (shaped by the steep, rugged terrain) and the latter led to animals suitable for agricultural labor and long endurance rides (shaped by selectively mating ponies with these traits). Horses and other domesticated animals could assist empires, but they also created political power for resisting colonialism (Melville, <xref ref-type="bibr" rid="B95">1997</xref>; Crosby, <xref ref-type="bibr" rid="B28">2004</xref>; Weisiger, <xref ref-type="bibr" rid="B175">2011</xref>; Wiley, <xref ref-type="bibr" rid="B181">2014</xref>).</p>
<p>Under imperial expansion, a tension emerged among breeders between either favoring a &#x0201C;universal&#x0201D; type that could thrive anywhere or adapting &#x0201C;native&#x0201D; stock to specific regions. For instance, breeders within the British Empire were concerned about whether the stock of their home islands would &#x0201C;acclimatize&#x0201D; when introduced to colonies and quasi-colonies in the Americas, Australia, New Zealand, and South Africa (Woods, <xref ref-type="bibr" rid="B193">2017b</xref>). This concern, rooted in the seventeenth century dictum &#x0201C;every soil has its stock&#x0201D;, was based on the notion that the character of place shaped the character of type, leading to the rise of a wide variety of local breeds. For example, imported Spanish Merinos to Australia and New Zealand&#x02014;known for fleece&#x02014;thrived in the colder high country while British Longwools&#x02014;known for flesh&#x02014;did better in warmer coastal areas (Peden, <xref ref-type="bibr" rid="B115">2013</xref>). The introduction of refrigerated steamships enabled a transoceanic mutton trade in the late nineteenth century (Woods R. J. H., <xref ref-type="bibr" rid="B190">2012</xref>; Woods, <xref ref-type="bibr" rid="B191">2015</xref>). In response, New Zealand farmers crossed Merinos and Longwools to create an all-purpose breed, the Corriedale, that was better able to cope with a range of island conditions. Woods (<xref ref-type="bibr" rid="B193">2017b</xref>) has argued the creation of this &#x0201C;native&#x0201D; sheep distanced breeders from their colonial past; breeding sought to resolve contradictions that came with animals of empire (Anderson, <xref ref-type="bibr" rid="B7">2004</xref>; Saraiva, <xref ref-type="bibr" rid="B133">2016</xref>). The 250 years of imperial expansion created institutions, hierarchies, attitudes, and tensions that affect people, animals, and their interactions up to today.</p>
</sec>
<sec>
<title>Welfare state period (1945-present)</title>
<p>After World War II, empires and nation-states pursued agricultural intensification for food security&#x02014;and thus political legitimacy (Schneider, <xref ref-type="bibr" rid="B137">2018</xref>). While 1945&#x02013;1989 is often seen through the lens of Cold War competition between two superpowers with opposing ideologies, animal history tells a story of surprising global convergence. The recent book titles of <italic>Communist Pigs</italic> (2020), <italic>Capitalist Pigs</italic> (2019), and <italic>Fascist Pigs</italic> (2016) are telling for their ideological breadth. As Fleischman (<xref ref-type="bibr" rid="B47">2020</xref>) has contended, pigs reared on opposite sides of the world, in East Germany and Iowa, were nearly identical during the 1970s given the global consensus around the importance of producing cheap meat. Although different mechanisms were used to achieve this goal, the German Democratic Republic (GDR) used Stasi agents to promote land collectivization while the US Department of Agriculture relied on debt to force the agribusiness mantra of &#x0201C;get big or get out,&#x0201D; both governments pushed farm consolidation. After the 1948 fallout between Josef Stalin and Yugoslav leader Josip Broz Tito, the Socialist Federation of Yugoslavia became a key player in linking communist and capitalist blocs. In 1970, Yugoslavia delivered hundreds of breeding boars to East Germany, which enabled pig breeders to preferentially use hybrids as they delivered improved weight gain and had a high tolerance for disease resistance when reared in confined spaces. The GDR was not alone in this breeding approach: by 1978, more than 80% of pigs in East Germany and 90% in the United States were hybrids. Despite the Berlin Wall marking a divide between market capitalism and state communism, Settele (<xref ref-type="bibr" rid="B140">2020</xref>) observed that agricultural production in the &#x0201C;two Germanys&#x0201D; was more similar than different. Feeding citizens through the mass production of animals worked to sway or solidify public attitudes about the different political regimes (Cullather, <xref ref-type="bibr" rid="B29">2010</xref>; Smith, <xref ref-type="bibr" rid="B145">2014</xref>; Schmalzer, <xref ref-type="bibr" rid="B136">2016</xref>).</p>
<p>A useful illustration about how agricultural intensification transcended political ideologies is the collaboration between Canada and Cuba. Funes-Monzote and Palmer (<xref ref-type="bibr" rid="B53">2020</xref>) have argued that Cold War geopolitics forced Cuba to become more self-sufficient in food production. After the 1959 Revolution, Fidel Castro sought to reduce Cuban reliance on US imports, setting the goal that each Cuban child should have access to a liter of nationally-produced milk per day. When the US government authorized an economic embargo on the country in 1961, Cuba turned to Canada for help with breeding stock. French agronomist and adviser Julien Col&#x000E9;ou recommended crossing Cuban cows with Holsteins for improved milk production, opening the door for exporting 20,000 Canadian Holsteins to Cuba and hence transforming the predominantly Zebu herds to hybrid stock. Cuban veterinarians, some of whom trained in Canada, opened artificial insemination (AI) centers to support this transition (Funes-Monzote, <xref ref-type="bibr" rid="B52">2016</xref>). Cuba&#x00027;s dairy production reached 1.1 billion liters of fluid milk annually between 1981 and 1989, making the island nation the sixth largest producer in Latin America. Castro even claimed a Canadian Holstein stud bull, Rosafe Signet, as a revolutionary hero after his offspring, Ubre Blanca (White Udder), broke the world record for total milk yield, previously held by an American cow (see <xref ref-type="fig" rid="F4">Figure 4</xref>). On a 1976 visit to Cuba, Prime Minister Pierre Trudeau remarked that &#x0201C;creating new breeds of cattle&#x0201D; was a mutual interest &#x0201C;despite the differences between a Latin American tropical country and a northern continental nation of harsh climate&#x0201D; (Funes-Monzote and Palmer, <xref ref-type="bibr" rid="B53">2020</xref>, p. 147). This example illustrates how nation-states can converge in their desire to shape animal bodies for food security.</p>
<fig id="F4" position="float">
<label>Figure 4</label>
<caption><p>Fidel Castro with imported Holstein bull, Rosafe Signet, 1967. The Cuban-Canadian connection in dairy production exemplified how nation-states across the ideological spectrum converged on shaping animal bodies for food security. Photograph from Keystone Press/Alamy Stock Photo. Used with permission.</p></caption>
<graphic mimetype="image" mime-subtype="tiff" xlink:href="fsufs-06-938085-g0004.tif"/>
</fig>
<p>During this period, governments increasingly turned to biotechnologies for mediating livestock selection (Wilmot, <xref ref-type="bibr" rid="B182">2007</xref>). AI, a reproductive technology that circumvented sexual intercourse by introducing sperm to a cervix manually, was implemented as a &#x0201C;public service&#x0201D; in the dairy industry to ease breeders&#x00027; pushback for disrupting their occupational identity (Derry, <xref ref-type="bibr" rid="B36">2015</xref>). The UK government alleviated domestic concerns by instituting national AI centers that would combat wartime food rationing by rationalizing milk production. In 1951, 20% of cows in England and Wales were impregnated by AI; by 1958, that figure rose to 58% (Wilmot, <xref ref-type="bibr" rid="B182">2007</xref>). In the Netherlands, breeders vowed not to use Holstein semen for nationalistic and cultural reasons: they wanted to protect their renowned Friesian breed from North American bulls (Theunissen, <xref ref-type="bibr" rid="B158">2008</xref>). At mid-century, Dutch farmers favored selecting animals on physical appearance too, while the North American industry had shifted to a more quantitative approach. The Dutch perspective is summarized in the words of one breeder who stated: &#x0201C;That&#x00027;s all very well, but a computer can&#x00027;t look at my cows&#x0201D; (Theunissen, <xref ref-type="bibr" rid="B159">2012</xref>, p. 295). Opinion began to shift after the U.N.&#x00027;s Food and Agriculture Organization sponsored experiments during the mid-1970s, conducted by Maria Stolzman in Poland, using Holstein bulls from Canada, United States, New Zealand, and Israel, and proving that the daughters of these sires had milk yields higher than those of their Friesian counterparts. The &#x0201C;Holsteinization&#x0201D; of Dutch herds eventually won out and frozen sperm insemination rates in the Netherlands rose from 3.5% in 1968 to 72.2% by 1975 (Theunissen, <xref ref-type="bibr" rid="B160">2020</xref>). As the UK and Dutch examples demonstrate, how governments subsidized the implementation of biotechnologies like AI mattered in their adoption.</p>
<p>Scientific authority over livestock practices expanded as laboratories became key players in the breeding technology domain. Pig farmers in the United Kingdom did not use AI until the 1970s due to fears of disease risk from technicians being the vehicle for introducing new bacteria to pigs in indoor facilities (Brassley, <xref ref-type="bibr" rid="B15">2007</xref>). However, Dr. Christopher Polge of Cambridge&#x00027;s Animal Research Station, in collaboration with the Milk and Livestock Commission (MLC), developed &#x0201C;semen extenders&#x0201D; increasing the longevity of fresh sperm. This new preservation method, when combined with mail service and the MLC agents teaching farmers how to inseminate pigs as part of their extension activities, resulted in the rapid adoption of AI (Brassley, <xref ref-type="bibr" rid="B15">2007</xref>). New technologies still could unsettle traditional boundaries; Franklin (<xref ref-type="bibr" rid="B51">2007</xref>) conveyed that Dolly the Sheep, the first mammal to be cloned from adult genetic material, caused public stir because scientists redefined how sexual reproduction was conventionally understood. As Margaret Thatcher&#x00027;s neoliberal government sought to replace public expenditures with private contracts at universities, Scotland&#x00027;s Roslin Institute received sponsorship by PPL Therapeutics for the technique&#x00027;s potential to extract valuable human enzymes (Garc&#x000ED;a-Sancho, <xref ref-type="bibr" rid="B55">2015</xref>). This industry partnership enabled Roslin&#x00027;s researchers to demonstrate that viable livestock could be developed from cells in a petri dish (Franklin, <xref ref-type="bibr" rid="B51">2007</xref>).</p>
<p>Critiques of agricultural intensification emerged inside and outside of food systems. Just as the aftermath of World War II was a turning point for expanded welfare states to meet the basic needs of people (e.g., policies for universal healthcare, social housing, etc.; Castles et al., <xref ref-type="bibr" rid="B22">2010</xref>), the period was also transformative for thinking more expansively about the care of animals (Woods A., <xref ref-type="bibr" rid="B188">2012</xref>). In dairy production, wartime labor shortages in Europe and North America led to the adoption of milking machines (Bieleman, <xref ref-type="bibr" rid="B13">2005</xref>), and although milk output increased, so did udder infections. To help control this increased risk of disease, antibiotic drugs were increasingly used to keep dairy yields high and mastitis rates low (Woods, <xref ref-type="bibr" rid="B187">2007</xref>; Smith-Howard, <xref ref-type="bibr" rid="B147">2017a</xref>). Some US dairy farmers, as early as the 1960s, rejected the use of antibiotics and adopted organic methods despite the lack of financial premiums for doing so (Saucier and Parsons, <xref ref-type="bibr" rid="B134">2014</xref>). For example, one farmer (Kevin Engelbert) explained that even though his father had been using antibiotic treatments weekly to keep mastitis at bay on his upstate New York herd, he decided to stop &#x0201C;pushing the cows&#x0201D;, arguing that his approach improved animal health (Saucier and Parsons, <xref ref-type="bibr" rid="B134">2014</xref>). Increased acceptance of organic milk as healthier than conventional milk took place in the 1990s, driven in part by concerns associated with the use of recombinant bovine somatotropin (rBST) (Smith-Howard, <xref ref-type="bibr" rid="B148">2017b</xref>).</p>
<p>As an outsider, Ruth Harrison&#x00027;s 1964 book <italic>Animal Machines</italic>, which criticized the adoption of battery cages in poultry egg production among other farm practices, stirred competing definitions of what constituted animal welfare (Sayer, <xref ref-type="bibr" rid="B135">2013</xref>). After a Harrison-inspired petition asking for &#x0201C;the end of factory farms&#x0201D; was sent to the UK&#x00027;s Ministry of Agriculture, Fisheries, and Food with 250,000 signatures, Parliament established a special committee, chaired by MP Francis Brambell, charged with investigating the treatment of farm animals. In 1965, the Brambell Report recommended that livestock be provided basic rights, coined the &#x0201C;Five Freedoms&#x0201D;, including freedom from hunger and thirst, freedom from injury and disease, and freedom to express normal behaviors. Important though it was, the report left room for different stakeholders to emphasize different elements of what they considered vital to the animal. For instance, large egg producers defended battery cages, stating the technology improved animal welfare by limiting the spread of disease (freedom of disease), while animal activists declared they did not, and raised concerns related to the bird&#x00027;s restriction of movement (freedom to express natural behaviors) (Sayer, <xref ref-type="bibr" rid="B135">2013</xref>). Animal activists from the 1960s onwards have increasingly voiced concerns on how livestock are raised, processed, and marketed (Howkins and Merricks, <xref ref-type="bibr" rid="B72">2000</xref>; Villanueva, <xref ref-type="bibr" rid="B169">2017</xref>).</p>
<p>Regulatory agencies, which grew in size and capacity, tried to balance the conflicting values between states and citizens concerning animal agriculture. In the 1950s, US pharmaceutical companies marketed the synthetic hormone diethylstilboestrol (DES), which was first approved for prenatal care in pregnant women, as a feed additive for beef cattle to gain weight more quickly (Langston, <xref ref-type="bibr" rid="B86">2010</xref>). Despite growing evidence that DES exposure led to cancer, the Food and Drug Administration (FDA) allowed the chemical to remain in livestock production so long as no detectable residues were found in the meat itself. The US Department of Agriculture increased its testing population from 192 to 6,000 head of cattle in 1971, reporting no residues but withholding 10 cases of extremely high levels (Langston, <xref ref-type="bibr" rid="B86">2010</xref>). After congressional hearings, the FDA was forced in 1972 to phase out DES as a feed additive based on the risks to human health. Like growth hormones, Woods (<xref ref-type="bibr" rid="B189">2022</xref>) has argued that vaccine development for bovine viral diarrhea (BVD) was motivated by state interests pivoting around World War II: national security, agricultural policies, and technological fixes. Under a joint US-Canada program initially charged with defending North America against the potential use of rinderpest as a biological weapon, New York State veterinarians first identified BVD in 1946 as a transmissible disease in cattle herds. This need for vaccines gained traction when agricultural policies encouraged intensification, increasing herd sizes and stock densities, and farmers began speaking of &#x0201C;shipping fever&#x0201D; and &#x0201C;feedlot disease&#x0201D; in their herds (Woods, <xref ref-type="bibr" rid="B189">2022</xref>). Despite growing public concerns around animal welfare, regulatory states funded and promoted technological fixes to sustain agricultural intensification rather than more extensive approaches.</p>
</sec>
</sec>
<sec sec-type="discussion" id="s4">
<title>Discussion</title>
<p>This historical synthesis has found three pertinent historical lessons to inform contemporary debates about gene editing farm animals.</p>
<sec>
<title>Selection pressures vary with time</title>
<p>Our review has shown how selection pressures on farm animals were quite broad during the Agro-Pastoral Period (reflecting the range of uses from ceremonial purposes to labor, transportation to food), narrowed during the Imperial State Period (with breeds more specialized around a single function like maximizing meat, milk, or fleece), and broadened again during the Welfare State Period (based on a range of values around animal welfare and sustainability). Our review has also identified a growing disconnect during the most recent period between states that greatly valued agricultural intensification for food security (Saraiva, <xref ref-type="bibr" rid="B133">2016</xref>; Schmalzer, <xref ref-type="bibr" rid="B136">2016</xref>; Anderson, <xref ref-type="bibr" rid="B6">2019</xref>; Fleischman, <xref ref-type="bibr" rid="B47">2020</xref>) and their citizenry who valued a range of other concerns such as animal welfare and environmental impact (Saucier and Parsons, <xref ref-type="bibr" rid="B134">2014</xref>; Villanueva, <xref ref-type="bibr" rid="B169">2017</xref>). These findings suggest that gene editing farm animals will more likely be accepted if the emerging biotechnology aligns with societal concerns over state desires, as well as a broad over narrow set of values. This finding may partly explain why contemporary surveys in Brazil (Yunes et al., <xref ref-type="bibr" rid="B195">2021</xref>), Norway (Bratlie et al., <xref ref-type="bibr" rid="B16">2020</xref>), and the United Kingdom (Nuffield Council on Bioethics, <xref ref-type="bibr" rid="B106">2021</xref>) have all demonstrated that ordinary people are most open to gene editing when they believe its applications will benefit some form of social good, such as animal welfare, sustainability, or food justice.</p>
<p>The strong link to enhanced production traits in the Imperial State Period reveals another historical precedent likely to influence gene editing use. Our review provides evidence that uneven power relations between those who controlled &#x0201C;improved&#x0201D; breeds and those who did not, generated resistance to these animals of empire (e.g., Swart, <xref ref-type="bibr" rid="B154">2010b</xref>; Saha, <xref ref-type="bibr" rid="B131">2016</xref>; Woods, <xref ref-type="bibr" rid="B193">2017b</xref>). It will likely continue to be a source of conflict as most patents for gene-edited animals are held by private companies in the global North (Then, <xref ref-type="bibr" rid="B157">2016</xref>). Profit motives have influenced the selection of production traits since the Imperial State Period, and people have disputed this emphasis since the Welfare State Period (Saucier and Parsons, <xref ref-type="bibr" rid="B134">2014</xref>; Sayer, <xref ref-type="bibr" rid="B135">2013</xref>; Smith-Howard, <xref ref-type="bibr" rid="B148">2017b</xref>). Given those contentions, we should anticipate that biotechnologies seen to primarily provide production benefits to private actors, such as gene editing for the double muscle trait (more meat on the animal) or docility trait (less stress hormones during slaughtering), will generally have the lowest public approval (Bratlie et al., <xref ref-type="bibr" rid="B16">2020</xref>; Ankeny et al., <xref ref-type="bibr" rid="B8">2021</xref>; Naab et al., <xref ref-type="bibr" rid="B101">2021</xref>; Busch et al., <xref ref-type="bibr" rid="B21">2022</xref>). Animal history matters in these debates because historical approaches can help identify power structures in the past for understanding current (and future) selection pressures.</p>
</sec>
<sec>
<title>What was old is new again</title>
<p>Purveyors of past biotechnologies have routinely stressed their newness to attract investment capital (Franklin, <xref ref-type="bibr" rid="B51">2007</xref>; Pawley, <xref ref-type="bibr" rid="B114">2020</xref>) while at the same time emphasizing their oldness to assuage public concerns (Center for Food Integrity, <xref ref-type="bibr" rid="B23">2021</xref>). Historical knowledge can establish what represents a rupture from the past and what does not. Consider the practice of dehorning cattle. Prior to this practice, overcrowding at slaughterhouses during the late nineteenth century led to cattle goring each other; to remediate these injuries beef processors started removing the horns&#x02014;first in Ireland (1870), then in the United States (1883) and Canada (1888) (Derry, <xref ref-type="bibr" rid="B36">2015</xref>). After the RSPCA successfully lobbied British Parliament that dehorning inflicted unnecessary pain on animals, a new law in 1889 banned this practice. Concurrently, breeders suggested cattle could be &#x0201C;dehorned naturally&#x0201D; by crossing with polled Angus or Galloway breeds (Derry, <xref ref-type="bibr" rid="B36">2015</xref>). In 1890, Canadian authorities arrested Ontario farmer Chauncy Smith for the then illegal act of dehorning. When this legal challenge went to the courts, a resulting commission&#x02014;made up of veterinarians and farmers&#x02014;recommended that the horns simply be removed during calfhood (disbudding) and using painkillers for more humane treatment. The contemporary proposal of introducing the polled trait to horned cattle breeds through gene editing can be seen as a new method to address an old issue which has been contested over time (Hennig, <xref ref-type="bibr" rid="B65">2018</xref>).</p>
<p>The coevolutionary history of cattle and people, however, suggests there might come a time when horns are a useful or desirable trait again. Under open-range conditions of the Americas between the sixteenth and nineteenth centuries, Longhorns were valuable as they could defend themselves from wolves and jaguars when their human handlers were absent (Pelozatto Reilly, <xref ref-type="bibr" rid="B116">2016</xref>; Specht, <xref ref-type="bibr" rid="B149">2016</xref>). The introduction of barbed wire fences and predator eradication campaigns finally made these horns less important (Elofson, <xref ref-type="bibr" rid="B42">2004</xref>; Netz, <xref ref-type="bibr" rid="B104">2004</xref>). But if consumer demand for &#x0201C;grass-finished beef&#x0201D; leads to animals reared more extensively (Rowntree et al., <xref ref-type="bibr" rid="B128">2016</xref>), and if &#x0201C;rewilding&#x0201D; efforts restore native carnivores to rural landscapes (Wolf and Ripple, <xref ref-type="bibr" rid="B184">2018</xref>), horned cattle varieties could have utility once more. This thought-experiment highlights the reciprocal relationship between biology and culture that influence livestock traits (Derry, <xref ref-type="bibr" rid="B37">2018</xref>). Historical approaches show that the future is open to many possibilities, countering the narrative frame of technological determinism that portrays the adoption of gene editing techniques or other biotechnologies as inevitable (Devolder, <xref ref-type="bibr" rid="B39">2021</xref>).</p>
</sec>
<sec>
<title>Biology, culture, and equity</title>
<p>Our review has also demonstrated that the eugenics movement, conventionally restricted to the early twentieth century, was not an anomaly in time as racialized thinking developed through animal breeding over the Imperial State Period (Milne, <xref ref-type="bibr" rid="B98">2010</xref>; Wilcox, <xref ref-type="bibr" rid="B180">2017</xref>; Pawley, <xref ref-type="bibr" rid="B113">2018</xref>; Zelinger, <xref ref-type="bibr" rid="B198">2019</xref>). Examining past injustices in animal agriculture, and the colonial systems that underpinned it, can offer a knowledge base for informing culturally responsive approaches to gene editing tools (Feli&#x000FA;-M&#x000F3;jer, <xref ref-type="bibr" rid="B43">2020</xref>). For example, Hudson et al. (<xref ref-type="bibr" rid="B74">2019</xref>) found that the M&#x00101;ori people of New Zealand were not opposed to gene editing outright but did express strong views about the biotechnology if <italic>taonga</italic> (precious) species, or plants and animals protected by the 1840 Treaty of Waitangi, were involved.</p>
<p>Inserting the slick gene into cattle could be viewed as an important climate adaptation tool, helping livestock to adjust to warming temperatures. However, given that approaches to acclimatizing breeds in the past were bound up in empire (Peden, <xref ref-type="bibr" rid="B115">2013</xref>; Wilcox, <xref ref-type="bibr" rid="B180">2017</xref>; Woods, <xref ref-type="bibr" rid="B193">2017b</xref>), gene editing for bovine thermoregulation might be seen in another cultural context as further expanding the hoofprint of where cattle can be raised, including farther into the Indigenous-held territories of the Amazon (Skidmore et al., <xref ref-type="bibr" rid="B144">2021</xref>). Tanner and Walch-Solimena (<xref ref-type="bibr" rid="B155">2019</xref>) observed that &#x0201C;there are considerable cultural differences, rooted in historical experience, in the approach to the risks and opportunities associated with new biotechnologies&#x0201D; (p. 25). Animal history helps researchers and policymakers to better understand and respect the cultural differences, rooted in historical experience, in which they research and govern.</p>
<p>One current debate about gene editing farm animals is whether the process or its products should fall under pre-existing regulations (Charpentier et al., <xref ref-type="bibr" rid="B24">2019</xref>; Cotter et al., <xref ref-type="bibr" rid="B27">2020</xref>). For example, the US Food and Drug Administration very recently made a &#x0201C;low-risk determination&#x0201D; on introducing the slick trait in cattle through CRISPR-Cas9, based on its natural appearance as a genetic mutation in some breeds (Food Drug Administration, <xref ref-type="bibr" rid="B49">2022</xref>). However, regulatory processes tend to focus discussions to technical concerns about food safety (Langston, <xref ref-type="bibr" rid="B86">2010</xref>; Woods, <xref ref-type="bibr" rid="B189">2022</xref>) and the &#x0201C;safe enough&#x0201D; narrative allows science and technology to dictate governance and ethics, rather than the other way around (Woopen et al., <xref ref-type="bibr" rid="B194">2021</xref>). Who gets to define value in gene editing depends on which actors have power. In animal agriculture, power has historically been held by corporate meatpackers (Amaral, <xref ref-type="bibr" rid="B5">1998</xref>; Specht, <xref ref-type="bibr" rid="B150">2020</xref>; Sunseri, <xref ref-type="bibr" rid="B152">2021</xref>), state veterinary services (Kr&#x000E4;tli, <xref ref-type="bibr" rid="B81">2010</xref>; Brown, <xref ref-type="bibr" rid="B20">2016</xref>; Ford, <xref ref-type="bibr" rid="B50">2018</xref>; Conz, <xref ref-type="bibr" rid="B25">2020</xref>; Wedekind, <xref ref-type="bibr" rid="B174">2021</xref>), and large breeding associations (Orland, <xref ref-type="bibr" rid="B108">2004</xref>; Kevles, <xref ref-type="bibr" rid="B77">2007</xref>; Matz, <xref ref-type="bibr" rid="B92">2011b</xref>). Given that technical authority in breeding has shifted to smaller numbers of actors over the last 300 years (Brassley, <xref ref-type="bibr" rid="B15">2007</xref>; Garc&#x000ED;a-Sancho, <xref ref-type="bibr" rid="B55">2015</xref>; Theunissen, <xref ref-type="bibr" rid="B160">2020</xref>), public trust in gene editing could be built through more equitable practices that incorporate concerns of historically marginalized communities, such as women (Donald, <xref ref-type="bibr" rid="B41">2019</xref>), and those who have experienced colonization (Weisiger, <xref ref-type="bibr" rid="B175">2011</xref>; Breen, <xref ref-type="bibr" rid="B18">2013</xref>).</p>
</sec>
<sec>
<title>Limitations</title>
<p>Our review was limited in its geographic asymmetry and the livestock species considered. Studies about animals in the global North, particularly the United States (<italic>n</italic> = 18) and Great Britain (<italic>n</italic> = 13), were overrepresented in this review, indicating a need for more animal histories based in the global South. Moreover, studies about domesticated farm animals that originated on the Eurasian continent were disproportionate. The historical examination of other animals, such as the llama, turkey, Muscovy duck, and reindeer, could yield valuable insights about human-animal relationships in agriculture (Wakild, <xref ref-type="bibr" rid="B170">2021</xref>), particularly of Indigenous practices.</p>
</sec>
</sec>
<sec sec-type="conclusions" id="s5">
<title>Conclusion</title>
<p>Animal history is a new and burgeoning field of historical inquiry that can help to answer questions relevant to contemporary issues such as gene editing farm animals. Unlike statistical modelers who attempt to offer predictions about the future (Aykut et al., <xref ref-type="bibr" rid="B11">2019</xref>), historians deliver lessons by way of parables (Glassberg, <xref ref-type="bibr" rid="B58">2014</xref>). Historical approaches offer a form of &#x0201C;anticipatory knowledge&#x0201D; because the past creates legacies that influence the present and reveal multiple scenarios for the future (Simon et al., <xref ref-type="bibr" rid="B141">2021</xref>). By recounting past breeding practices, history prepares stakeholders for how new biotechnologies like gene editing might disrupt or adjust to older patterns in animal husbandry. For instance, AI in cows unsettled the Dutch dairy culture by selecting animals with formulas over features, and AI in pigs adapted to the preference among British farmers to breed their own animals. In bioethical decision-making, the quandary of &#x0201C;what should we do?&#x0201D; has a wider perspective for answers if preceded by reflecting on the historical question of &#x0201C;how did we get here?&#x0201D; (Neustadt and May, <xref ref-type="bibr" rid="B105">1986</xref>; Oreskes and Conway, <xref ref-type="bibr" rid="B107">2014</xref>). Historical approaches can be anticipatory because varied experiences in the past help to shape our collective expectations for the present and future. Animal history acts to temper both unbridled faith in human control over animals and the resolute belief that animal bodies are unchanged or natural. Because history captures longer time trends instead of brief snapshots, the discipline counteracts short-sighted, present-oriented thinking that often guides policy debates (Guldi and Armitage, <xref ref-type="bibr" rid="B62">2014</xref>). Historical methods are about identifying patterns and processes in the past so that stakeholders can learn which guiding logics to keep and which to discard. Like collaborations between historians and ecologists (Higgs et al., <xref ref-type="bibr" rid="B67">2014</xref>), animal historians and animal-focused scientists have much to gain from increased dialogue.</p>
</sec>
<sec sec-type="data-availability" id="s6">
<title>Data availability statement</title>
<p>The original contributions presented in the study are included in the article/supplementary material, further inquiries can be directed to the corresponding author/s.</p>
</sec>
<sec id="s7">
<title>Author contributions</title>
<p>WW identified English- and Spanish-language sources for the review. HT identified those in German. WW and HT independently read all included records, responsible for the synthesis found in the Section Results, and as well as the interpretation in the Section Discussion. MvK, KK, and DW provided input on the research question and study design, as well as provided comments, and suggestions on earlier drafts of the paper. All authors contributed to the article and approved the submitted version.</p>
</sec>
<sec sec-type="funding-information" id="s8">
<title>Funding</title>
<p>This work was funded by the Government of Canada through Genome Canada and the Ontario Genomics Institute (OGI-191). The companies Semex and Acceligen are industry partners to the Genome Canada grant. They were not involved in the study design, collection, analysis, interpretation of data, the writing of this article or the decision to submit it for publication.</p>
</sec>
<sec sec-type="COI-statement" id="conf1">
<title>Conflict of interest</title>
<p>The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.</p>
</sec>
<sec sec-type="disclaimer" id="s9">
<title>Publisher&#x00027;s note</title>
<p>All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.</p>
</sec>
</body>
<back>
<ack><p>The authors thank Jillian Hendricks, Christine Kuo, and Lara Sirovica of the UBC Animal Welfare Program for their comments on an earlier version of this manuscript.</p>
</ack>
<ref-list>
<title>References</title>
<ref id="B1">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Agier</surname> <given-names>M.</given-names></name></person-group> (<year>1995</year>). <article-title>Racism, culture and black identity in Brazil</article-title>. <source>Bull. Latin Am. Res.</source> <volume>14</volume>, <fpage>245</fpage>&#x02013;<lpage>264</lpage>. <pub-id pub-id-type="doi">10.1111/j.1470-9856.1995.tb00010.x</pub-id></citation>
</ref>
<ref id="B2">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Ahmad</surname> <given-names>D. L.</given-names></name></person-group> (<year>2016</year>). <source>Success Depends on the Animals: Emigrants, Livestock, and Wild Animals on the Overland Trails</source>, <fpage>1840</fpage>&#x02013;<lpage>1869</lpage>. <publisher-loc>Reno</publisher-loc>: <publisher-name>University of Nevada Press</publisher-name>.</citation>
</ref>
<ref id="B3">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Ajmone-Marsan</surname> <given-names>P.</given-names></name> <name><surname>Fernando Garcia</surname> <given-names>J.</given-names></name> <name><surname>Lenstra</surname> <given-names>J. A.</given-names></name></person-group> (<year>2010</year>). <article-title>On the origin of cattle: how aurochs became cattle and colonized the world</article-title>. <source>Evol. Anthropol.</source> <volume>19</volume>, <fpage>148</fpage>&#x02013;<lpage>157</lpage>. <pub-id pub-id-type="doi">10.1002/evan.20267</pub-id></citation>
</ref>
<ref id="B4">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Albarella</surname> <given-names>U.</given-names></name> <name><surname>Dobney</surname> <given-names>K.</given-names></name> <name><surname>Ervynck</surname> <given-names>A.</given-names></name> <name><surname>Rowley-Conwy</surname> <given-names>P.</given-names></name></person-group> (eds.). (<year>2007</year>). <source>Pigs and Humans: 10,000 Years of Interaction</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Oxford University Press</publisher-name>.</citation>
</ref>
<ref id="B5">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Amaral</surname> <given-names>S.</given-names></name></person-group> (<year>1998</year>). <source>The Rise of Capitalism on the Pampas: The Estancias of Buenos Aires, 1785&#x02013;1870</source>. <publisher-loc>Cambridge</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>.</citation>
</ref>
<ref id="B6">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Anderson</surname> <given-names>J. L.</given-names></name></person-group> (<year>2019</year>). <source>Capitalist Pigs: Pigs, Pork, and Power in America</source>. <publisher-loc>Morgantown, WV</publisher-loc>: <publisher-name>West Virginia University Press</publisher-name>.</citation>
</ref>
<ref id="B7">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Anderson</surname> <given-names>V. D.</given-names></name></person-group> (<year>2004</year>). <source>Creatures of Empire: How Domestic Animals Transformed Early America</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Oxford University Press</publisher-name>.</citation>
</ref>
<ref id="B8">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Ankeny</surname> <given-names>R. A.</given-names></name> <name><surname>Bray</surname> <given-names>H.</given-names></name> <name><surname>Paxton</surname> <given-names>R.</given-names></name></person-group> (<year>2021</year>). <source>Community Attitudes Toward Gene Editing in the Red Meat Sector</source>. <publisher-loc>Sydney, NSW</publisher-loc>: <publisher-name>Meat and Livestock Australia</publisher-name>.</citation>
</ref>
<ref id="B9">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Appuhn</surname> <given-names>K.</given-names></name></person-group> (<year>2010</year>). <article-title>Ecologies of beef: eighteenth-century epizootics and the environmental history of early modern Europe</article-title>. <source>Environ. Hist.</source> <volume>15</volume>, <fpage>268</fpage>&#x02013;<lpage>287</lpage>. <pub-id pub-id-type="doi">10.1093/envhis/emq049</pub-id></citation>
</ref>
<ref id="B10">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Atkins</surname> <given-names>P.</given-names></name></person-group> (<year>2016</year>). <source>Animal Cities: Beastly Urban Histories</source>. <publisher-loc>London</publisher-loc>: <publisher-name>Routledge</publisher-name>.</citation>
</ref>
<ref id="B11">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Aykut</surname> <given-names>S. C.</given-names></name> <name><surname>Demortain</surname> <given-names>D.</given-names></name> <name><surname>Benbouzid</surname> <given-names>B.</given-names></name></person-group> (<year>2019</year>). <article-title>The politics of anticipatory expertise: plurality and contestation of futures knowledge in governance</article-title>. <source>Sci. Technol. Stud.</source> <volume>32</volume>, <fpage>2</fpage>&#x02013;<lpage>12</lpage>. <pub-id pub-id-type="doi">10.23987/sts.87369</pub-id></citation>
</ref>
<ref id="B12">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Bankoff</surname> <given-names>G.</given-names></name> <name><surname>Swart</surname> <given-names>S.</given-names></name> <name><surname>Boomgaard</surname> <given-names>P.</given-names></name></person-group> (<year>2007</year>). <source>Breeds of Empire: The &#x0201C;Invention&#x0201D; of the Horse in Southeast Asia and Southern Africa, 1500-1950</source>. <publisher-loc>Copenhagen</publisher-loc>: <publisher-name>Nordic Institute of Asian Studies Press</publisher-name>.</citation>
</ref>
<ref id="B13">
<citation citation-type="web"><person-group person-group-type="author"><name><surname>Bieleman</surname> <given-names>J.</given-names></name></person-group> (<year>2005</year>). <article-title>Technological innovation in Dutch cattle breeding and dairy farming, 1850&#x02013;2000</article-title>. <source>Agricul. History Rev.</source> <volume>53</volume>, <fpage>229</fpage>&#x02013;<lpage>250</lpage>. <ext-link ext-link-type="uri" xlink:href="https://www.bahs.org.uk/AgHRVOL.html?YEAR=2005&#x00026;MOD=this">https://www.bahs.org.uk/AgHRVOL.html?YEAR=2005&#x00026;MOD=this</ext-link></citation>
</ref>
<ref id="B14">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Boisseron</surname> <given-names>B.</given-names></name></person-group> (<year>2018</year>). <source>Afro-Dog: Blackness and the Animal Question</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Columbia University Press</publisher-name>.</citation>
</ref>
<ref id="B15">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Brassley</surname> <given-names>P.</given-names></name></person-group> (<year>2007</year>). <article-title>Cutting across nature? The history of artificial insemination in pigs in the United Kingdom</article-title>. <source>Stud. Hist. Phil. Sci. C Stud. Hist. Phil. Biol. Biomed. Sci.</source> <volume>38</volume>, <fpage>442</fpage>&#x02013;<lpage>461</lpage>. <pub-id pub-id-type="doi">10.1016/j.shpsc.2007.03.008</pub-id><pub-id pub-id-type="pmid">17543840</pub-id></citation></ref>
<ref id="B16">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Bratlie</surname> <given-names>S.</given-names></name> <name><surname>Melleg&#x000E5;rd</surname> <given-names>H.</given-names></name> <name><surname>S&#x000E6;le</surname> <given-names>A.</given-names></name> <name><surname>Bergheim</surname> <given-names>E.</given-names></name> <name><surname>S&#x000F8;rensen Hols</surname> <given-names>L.</given-names></name> <name><surname>Behrens</surname> <given-names>J.</given-names></name></person-group> (<year>2020</year>). <source>Norwegian Consumers&#x00027; Attitudes Toward Gene Editing in Norwegian Agriculture and Aquaculture</source>. <publisher-loc>&#x000C5;s</publisher-loc>: <publisher-name>Centre for Integrative Genetics</publisher-name>.</citation>
</ref>
<ref id="B17">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Bray</surname> <given-names>F.</given-names></name></person-group> (<year>2018</year>). <article-title>Where did the animals go? Presence and absence of livestock in Chinese agricultural treatises.</article-title> in <source>Animals Through Chinese History: Earliest Times to 1911</source>, eds. <person-group person-group-type="editor"><name><surname>Sterckx</surname> <given-names>R.</given-names></name> <name><surname>Siebert</surname> <given-names>M.</given-names></name> <name><surname>Sch&#x000E4;fer</surname> <given-names>D.</given-names></name></person-group> (<publisher-loc>Cambridge</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>), <fpage>118</fpage>&#x02013;<lpage>38</lpage>.</citation>
</ref>
<ref id="B18">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Breen</surname> <given-names>B.</given-names></name></person-group> (<year>2013</year>). <article-title>&#x02018;The elks are our horses&#x00027;: animals and domestication in the New France Borderlands</article-title>. <source>J. Early Am. Hist.</source> <volume>3</volume>, <fpage>181</fpage>&#x02013;<lpage>206</lpage>. <pub-id pub-id-type="doi">10.1163/18770703-00303002</pub-id></citation>
</ref>
<ref id="B19">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Brown</surname> <given-names>K.</given-names></name> <name><surname>Gilfoyle</surname> <given-names>D.</given-names></name></person-group> (eds.) (<year>2010</year>). <source>Healing the Herds: Disease, Livestock Economies, and the Globalization of Veterinary Medicine.</source> <publisher-loc>Athens</publisher-loc>: <publisher-name>Ohio University Press</publisher-name>.</citation>
</ref>
<ref id="B20">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Brown</surname> <given-names>T.</given-names></name></person-group> (<year>2016</year>). <article-title>Await the Jarga: cattle, disease, and livestock development in colonial gambia</article-title>. <source>Agric. Hist.</source> <volume>90</volume>, <fpage>230</fpage>&#x02013;<lpage>246</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2016.090.2.230</pub-id></citation>
</ref>
<ref id="B21">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Busch</surname> <given-names>G.</given-names></name> <name><surname>Ryan</surname> <given-names>E.</given-names></name> <name><surname>von Keyserlingk</surname> <given-names>M. A. G.</given-names></name> <name><surname>Weary</surname> <given-names>D. M.</given-names></name></person-group> (<year>2022</year>). <article-title>Citizen views on genome editing: effects of species and purpose</article-title>. <source>Agric. Hum. Values</source> <volume>39</volume>, <fpage>151</fpage>&#x02013;<lpage>164</lpage>. <pub-id pub-id-type="doi">10.1007/s10460-021-10235-9</pub-id></citation>
</ref>
<ref id="B22">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Castles</surname> <given-names>F. G.</given-names></name> <name><surname>Leibfried</surname> <given-names>S.</given-names></name> <name><surname>Lewis</surname> <given-names>J.</given-names></name> <name><surname>Obinger</surname> <given-names>H.</given-names></name> <name><surname>Pierson</surname> <given-names>C.</given-names></name></person-group> (eds.) (<year>2010</year>). <source>The Oxford Handbook of the Welfare State.</source> <publisher-loc>New York, NY</publisher-loc>. <publisher-name>Oxford University Press</publisher-name>.</citation>
</ref>
<ref id="B23">
<citation citation-type="book"><person-group person-group-type="author"><collab>Center for Food Integrity</collab></person-group> (<year>2021</year>). <source>Gene Editing: Engage in the Conversation</source>. <publisher-loc>Kansas City, MO</publisher-loc>: <publisher-name>Center for Food Integrity</publisher-name>.</citation>
</ref>
<ref id="B24">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Charpentier</surname> <given-names>E.</given-names></name> <name><surname>Mundlos</surname> <given-names>S.</given-names></name> <name><surname>Rauen</surname> <given-names>T.</given-names></name> <name><surname>Reeves</surname> <given-names>G.</given-names></name> <name><surname>Sch&#x000F6;ler</surname> <given-names>H.</given-names></name> <name><surname>Tanner</surname> <given-names>K.</given-names></name> <etal/></person-group>. (<year>2019</year>). <source>Discussion Paper Focusing on the Scientific Relevance of Genome Editing and on the Ethical, Legal and Societal Issues Potentially Involved</source>. <publisher-loc>Munich</publisher-loc>: <publisher-name>Ethics Council of Max Planck Society</publisher-name>.</citation>
</ref>
<ref id="B25">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Conz</surname> <given-names>C. R.</given-names></name></person-group> (<year>2020</year>). <article-title>Sheep, scab mites, and society: the process and politics of veterinary knowledge in Lesotho, Southern Africa, c. 1900-1933</article-title>. <source>Environ. Hist.</source> <volume>26</volume>, <fpage>383</fpage>&#x02013;<lpage>412</lpage>. <pub-id pub-id-type="doi">10.3197/096734018X15440029363690</pub-id></citation>
</ref>
<ref id="B26">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Costlow</surname> <given-names>J. T.</given-names></name> <name><surname>Nelson</surname> <given-names>A.</given-names></name></person-group> (eds.) (<year>2010</year>). <source>Other Animals: Beyond the Human in Russian Culture and History</source>. <publisher-loc>Pittsburgh, PA</publisher-loc>: <publisher-name>University of Pittsburgh Press</publisher-name>.</citation>
</ref>
<ref id="B27">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Cotter</surname> <given-names>J.</given-names></name> <name><surname>Perls</surname> <given-names>D.</given-names></name> <name><surname>Latham</surname> <given-names>J.</given-names></name></person-group> (<year>2020</year>). <source>Genome Editing in Food and Farming: Risks and Unexpected Consequences</source>. <publisher-loc>Washington, DC</publisher-loc>: <publisher-name>Friends of the Earth U.S</publisher-name>.</citation>
</ref>
<ref id="B28">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Crosby</surname> <given-names>A. W.</given-names></name></person-group> (<year>2004</year>). <source>Ecological Imperialism: The Biological Expansion of Europe, 900-1900. Revised Edition</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>.</citation>
</ref>
<ref id="B29">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Cullather</surname> <given-names>N.</given-names></name></person-group> (<year>2010</year>). <source>The Hungry World: America&#x00027;s Cold War Battle against Poverty in Asia</source>. <publisher-loc>Cambridge, MA</publisher-loc>: <publisher-name>Harvard University Press</publisher-name>.</citation>
</ref>
<ref id="B30">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Cushing</surname> <given-names>N.</given-names></name></person-group> (<year>2018</year>). <article-title>Few commodities are more hazardous&#x00027;: Australian live animal export, 1788-1880</article-title>. <source>Environ. Hist.</source> <volume>24</volume>, <fpage>445</fpage>&#x02013;<lpage>468</lpage>. <pub-id pub-id-type="doi">10.3197/096734018X15137949591954</pub-id></citation>
</ref>
<ref id="B31">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Dang</surname> <given-names>H. L.</given-names></name> <name><surname>Li</surname> <given-names>E.</given-names></name> <name><surname>Nuberg</surname> <given-names>I.</given-names></name> <name><surname>Bruwer</surname> <given-names>J.</given-names></name></person-group> (<year>2019</year>). <article-title>Factors influencing the adaptation of farmers in response to climate change: a review</article-title>. <source>Climate Dev.</source> <volume>11</volume>, <fpage>765</fpage>&#x02013;<lpage>774</lpage>. <pub-id pub-id-type="doi">10.1080/17565529.2018.1562866</pub-id></citation>
</ref>
<ref id="B32">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>De Graeff</surname> <given-names>N.</given-names></name> <name><surname>Jongsma</surname> <given-names>K. R.</given-names></name> <name><surname>Johnston</surname> <given-names>J.</given-names></name> <name><surname>Hartley</surname> <given-names>S.</given-names></name> <name><surname>Bredenoord</surname> <given-names>A. L.</given-names></name></person-group> (<year>2019</year>). <article-title>The Ethics of genome editing in non-human animals: a systematic review of reasons reported in the academic literature</article-title>. <source>Philos. Trans. R. Soc. B Biol. Sci.</source> <volume>374</volume>, <fpage>20180106</fpage>. <pub-id pub-id-type="doi">10.1098/rstb.2018.0106</pub-id><pub-id pub-id-type="pmid">30905297</pub-id></citation></ref>
<ref id="B33">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Del R&#x000ED;o Moreno</surname> <given-names>J. L.</given-names></name></person-group> (<year>1996</year>). <article-title>El cerdo: Historia de un elemento esencial de la cultura castellana en la conquista y colonizaci&#x000F3;n de Am&#x000E9;rica (siglo XVI)</article-title>. <source>Anuario de Estudios Americanos</source> <volume>53</volume>, <fpage>13</fpage>&#x02013;<lpage>35</lpage>. <pub-id pub-id-type="doi">10.3989/aeamer.1996.v53.i1.430</pub-id></citation>
</ref>
<ref id="B34">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Del Rosario Garc&#x000ED;a Huerta</surname> <given-names>M.</given-names></name> <name><surname>Ruiz G&#x000F3;mez</surname> <given-names>F.</given-names></name></person-group> (eds.) (<year>2017</year>). <source>Animales y racionales en la historia de Espa&#x000F1;a</source>. <publisher-loc>Madrid</publisher-loc>: <publisher-name>S&#x000ED;lex</publisher-name>.</citation>
</ref>
<ref id="B35">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Derry</surname> <given-names>M. E.</given-names></name></person-group> (<year>2003</year>). <source>Bred for Perfection: Shorthorn Cattle, Collies, and Arabian Horses Since 1800</source>. <publisher-loc>Baltimore, MD</publisher-loc>: <publisher-name>Johns Hopkins University Press</publisher-name>.</citation>
</ref>
<ref id="B36">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Derry</surname> <given-names>M. E.</given-names></name></person-group> (<year>2015</year>). <source>Masterminding Nature: The Breeding of Animals, 1750-2010</source>. <publisher-loc>Toronto, ON</publisher-loc>: <publisher-name>University of Toronto Press</publisher-name>.</citation>
</ref>
<ref id="B37">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Derry</surname> <given-names>M. E.</given-names></name></person-group> (<year>2018</year>). <article-title>Genetics, biotechnology, and breeding: North American shorthorn production in the twenty-first century</article-title>. <source>Agric. Hist.</source> <volume>92</volume>, <fpage>54</fpage>&#x02013;<lpage>77</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2018.092.1.054</pub-id></citation>
</ref>
<ref id="B38">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Derry</surname> <given-names>M. E.</given-names></name></person-group> (<year>2020</year>). <article-title>Theory and method: an analysis of European and American animal breeding practices, from the eighteenth to the twenty-first century</article-title>. <source>Agric. Hist.</source> <volume>94</volume>, <fpage>324</fpage>&#x02013;<lpage>361</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2020.094.3.324</pub-id></citation>
</ref>
<ref id="B39">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Devolder</surname> <given-names>K.</given-names></name></person-group> (<year>2021</year>). <article-title>Genome editing in livestock, complicity, and the technological fix objection</article-title>. <source>J. Agric. Environ. Ethics</source> <volume>34</volume>, <fpage>1</fpage>&#x02013;<lpage>17</lpage>. <pub-id pub-id-type="doi">10.1007/s10806-021-09858-z</pub-id><pub-id pub-id-type="pmid">34720607</pub-id></citation></ref>
<ref id="B40">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Dikmen</surname> <given-names>S.</given-names></name> <name><surname>Khan</surname> <given-names>F. A.</given-names></name> <name><surname>Huson</surname> <given-names>H. J.</given-names></name> <name><surname>Sonstegard</surname> <given-names>T. S.</given-names></name> <name><surname>Moss</surname> <given-names>J. I.</given-names></name> <name><surname>Dahl</surname> <given-names>G. E.</given-names></name> <etal/></person-group>. (<year>2014</year>). <article-title>The SLICK hair locus derived from senepol cattle confers thermotolerance to intensively managed lactating holstein cows</article-title>. <source>J. Dairy Sci.</source> <volume>97</volume>, <fpage>5508</fpage>&#x02013;<lpage>5520</lpage>. <pub-id pub-id-type="doi">10.3168/jds.2014-8087</pub-id><pub-id pub-id-type="pmid">24996281</pub-id></citation></ref>
<ref id="B41">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Donald</surname> <given-names>D.</given-names></name></person-group> (<year>2019</year>). <source>Women Against Cruelty: Protection of Animals in Nineteenth-Century Britain</source>. <publisher-loc>Manchester</publisher-loc>: <publisher-name>Manchester University Press</publisher-name>.</citation>
</ref>
<ref id="B42">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Elofson</surname> <given-names>W. M.</given-names></name></person-group> (<year>2004</year>). <source>Frontier Cattle Ranching in the Land and Times of Charlie Russell: A Re-Examination of the Free-Range Cattle Ranching Era in Montana, Southern Alberta, and Southern Saskatchewan</source>. <publisher-loc>Montreal, OC</publisher-loc>: <publisher-name>McGill-Queen&#x00027;s University Press</publisher-name>.</citation>
</ref>
<ref id="B43">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Feli&#x000FA;-M&#x000F3;jer</surname> <given-names>M. I.</given-names></name></person-group> (<year>2020</year>). <article-title>Gene editing communication must center marginalized communities</article-title>. <source>Environ. Commun.</source> <volume>14</volume>, <fpage>877</fpage>&#x02013;<lpage>880</lpage>. <pub-id pub-id-type="doi">10.1080/17524032.2020.1812274</pub-id></citation>
</ref>
<ref id="B44">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Fischer</surname> <given-names>J. R.</given-names></name></person-group> (<year>2015</year>). <source>Cattle Colonialism: An Environmental History of the Conquest of California and Hawai&#x00027;i</source>. <publisher-loc>Chapel Hill, NC</publisher-loc>: <publisher-name>University of North Carolina Press</publisher-name>.</citation>
</ref>
<ref id="B45">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Fitzgerald</surname> <given-names>D.</given-names></name> <name><surname>Onaga</surname> <given-names>L.</given-names></name> <name><surname>Pawley</surname> <given-names>E.</given-names></name> <name><surname>Phillips</surname> <given-names>D.</given-names></name> <name><surname>Vetter</surname> <given-names>J.</given-names></name></person-group> (<year>2018</year>). <article-title>Roundtable: agricultural history and the history of science</article-title>. <source>Agric. Hist.</source> <volume>92</volume>, <fpage>569</fpage>&#x02013;<lpage>604</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2018.092.4.569</pub-id></citation>
</ref>
<ref id="B46">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Fitzgerald</surname> <given-names>D. K.</given-names></name></person-group> (<year>2008</year>). <source>Every Farm a Factory: The Industrial Ideal in American Agriculture</source>. <publisher-loc>New Haven, CT</publisher-loc>: <publisher-name>Yale University Press</publisher-name>.</citation>
</ref>
<ref id="B47">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Fleischman</surname> <given-names>T.</given-names></name></person-group> (<year>2020</year>). <source>Communist Pigs: An Animal History of East Germany&#x00027;s Rise and Fall</source>. <publisher-loc>Seattle, WA</publisher-loc>: <publisher-name>University of Washington Press</publisher-name>.</citation>
</ref>
<ref id="B48">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Fl&#x000F3;rez-Malag&#x000F3;n</surname> <given-names>A. G.</given-names></name> <name><surname>Baptiste</surname> <given-names>B. L. G.</given-names></name> <name><surname>Gallini</surname> <given-names>S.</given-names></name> <name><surname>Johanna Bol&#x000ED;var</surname> <given-names>I.</given-names></name> <name><surname>Van Ausdal</surname> <given-names>S.</given-names></name></person-group> (eds.) (<year>2008</year>). <source>El poder de la carne: Historias de ganader&#x000ED;as en la primera mitad del siglo XX en Colombia</source>. <publisher-loc>Bogota</publisher-loc>: <publisher-name>Pontificia Universidad Javeriana</publisher-name>.</citation>
</ref>
<ref id="B49">
<citation citation-type="web"><person-group person-group-type="author"><collab>Food Drug Administration</collab></person-group> (<year>2022</year>). <source>FDA Makes Low-Risk Determination for Marketing of Products from Genome-Edited Beef Cattle After Safety Review</source>. Available online at: <ext-link ext-link-type="uri" xlink:href="https://www.fda.gov/news-events/press-announcements/fda-makes-low-risk-determination-marketing-products-genome-edited-beef-cattle-after-safety-review">https://www.fda.gov/news-events/press-announcements/fda-makes-low-risk-determination-marketing-products-genome-edited-beef-cattle-after-safety-review</ext-link> (accessed May 1, 2022).</citation>
</ref>
<ref id="B50">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Ford</surname> <given-names>K.</given-names></name></person-group> (<year>2018</year>). <article-title>Keeping the country clean: animal diseases, bacteriology, and the foundations of biosecurity in New Zealand, 1890&#x02013;1910</article-title>. <source>Agric. Hist.</source> <volume>92</volume>, <fpage>78</fpage>&#x02013;<lpage>100</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2018.092.1.078</pub-id></citation>
</ref>
<ref id="B51">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Franklin</surname> <given-names>S.</given-names></name></person-group> (<year>2007</year>). <source>Dolly Mixtures: The Remaking of Genealogy</source>. <publisher-loc>Durham, NC</publisher-loc>: <publisher-name>Duke University Press</publisher-name>.</citation>
</ref>
<ref id="B52">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Funes-Monzote</surname> <given-names>R.</given-names></name></person-group> (<year>2016</year>). <article-title>The rise and fall of dairy cows in Socialist Cuba</article-title>. <source>Global Environ.</source> <volume>9</volume>, <fpage>342</fpage>&#x02013;<lpage>376</lpage>. <pub-id pub-id-type="doi">10.3197/ge.2016.090203</pub-id></citation>
</ref>
<ref id="B53">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Funes-Monzote</surname> <given-names>R.</given-names></name> <name><surname>Palmer</surname> <given-names>S.</given-names></name></person-group> (<year>2020</year>). <article-title>Challenging climate and geopolitics: Cuba, Canada, and intensive livestock exchange in a cold war context, from the 1960s to the 1980s.</article-title> in <source>Itineraries of Expertise: Science, Technology, and the Environment in Latin America</source>, eds. <person-group person-group-type="editor"><name><surname>Chastain</surname> <given-names>A. B.</given-names></name> <name><surname>Lorek</surname> <given-names>T. W.</given-names></name></person-group> (<publisher-loc>Pittsburgh, PA</publisher-loc>: <publisher-name>University of Pittsburgh Press</publisher-name>).</citation>
</ref>
<ref id="B54">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Garc&#x000ED;a Garagarza</surname> <given-names>L.</given-names></name></person-group> (<year>2013</year>). <article-title>The year the people turned into Cattle: the end of the world in New Spain, 1558.</article-title> in <source>Centering Animals in Latin American History</source>, eds. <person-group person-group-type="editor"><name><surname>Few</surname> <given-names>M.</given-names></name> <name><surname>Tortorici</surname> <given-names>Z.</given-names></name></person-group> (<publisher-loc>Durham, NC</publisher-loc>: <publisher-name>Duke University Press</publisher-name>), <fpage>31</fpage>&#x02013;<lpage>61</lpage>.</citation>
</ref>
<ref id="B55">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Garc&#x000ED;a-Sancho</surname> <given-names>M.</given-names></name></person-group> (<year>2015</year>). <article-title>Animal breeding in the age of biotechnology: the investigative pathway behind the cloning of dolly the sheep</article-title>. <source>Hist. Phil. Life Sci.</source> <volume>37</volume>, <fpage>282</fpage>&#x02013;<lpage>304</lpage>. <pub-id pub-id-type="doi">10.1007/s40656-015-0078-6</pub-id><pub-id pub-id-type="pmid">26205201</pub-id></citation></ref>
<ref id="B56">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Gaudilliere</surname> <given-names>J.</given-names></name> <name><surname>Kevles</surname> <given-names>D.</given-names></name> <name><surname>Rheinberger</surname> <given-names>H.</given-names></name></person-group> (eds.) (<year>2009</year>). <source>Living Properties: Making Knowledge and Controlling Ownership in the History of Biology</source>. <publisher-loc>Berlin</publisher-loc>: <publisher-name>Max Planck Institute for the History of Science</publisher-name>.</citation>
</ref>
<ref id="B57">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Glagoleva</surname> <given-names>O. E.</given-names></name></person-group> (<year>2010</year>). <article-title>Woman&#x00027;s honor, or the story with a pig: the animal in everyday life in the eighteenth-century Russian provinces.</article-title> in <source>Other Animals: Beyond the Human in Russian Culture and History</source>, eds. <person-group person-group-type="editor"><name><surname>Costlow</surname> <given-names>J.</given-names></name> <name><surname>Nelson</surname> <given-names>A.</given-names></name></person-group> (<publisher-loc>Pittsburgh, PA</publisher-loc>: <publisher-name>University of Pittsburgh Press</publisher-name>), <fpage>21</fpage>&#x02013;<lpage>41</lpage>.</citation>
</ref>
<ref id="B58">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Glassberg</surname> <given-names>D.</given-names></name></person-group> (<year>2014</year>). <article-title>Place, memory, and climate change</article-title>. <source>Public Historian</source> <volume>36</volume>, <fpage>17</fpage>&#x02013;<lpage>30</lpage>. <pub-id pub-id-type="doi">10.1525/tph.2014.36.3.17</pub-id><pub-id pub-id-type="pmid">25638963</pub-id></citation></ref>
<ref id="B59">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Godin</surname> <given-names>K.</given-names></name> <name><surname>Stapleton</surname> <given-names>J.</given-names></name> <name><surname>Kirkpatrick</surname> <given-names>S. I.</given-names></name> <name><surname>Hanning</surname> <given-names>R. M.</given-names></name> <name><surname>Leatherdale</surname> <given-names>S. T.</given-names></name></person-group> (<year>2015</year>). <article-title>Applying systematic review search methods to the grey literature: a case study examining guidelines for school-based breakfast programs in Canada</article-title>. <source>Syst. Rev.</source> <volume>4</volume>, <fpage>138</fpage>. <pub-id pub-id-type="doi">10.1186/s13643-015-0125-0</pub-id><pub-id pub-id-type="pmid">26494010</pub-id></citation></ref>
<ref id="B60">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Greene</surname> <given-names>A. N.</given-names></name></person-group> (<year>2009</year>). <source>Horses at Work: Harnessing Power in Industrial America</source>. <publisher-loc>Cambridge, MA</publisher-loc>: <publisher-name>Harvard University Press</publisher-name>.</citation>
</ref>
<ref id="B61">
<citation citation-type="web"><person-group person-group-type="author"><name><surname>Grundy</surname> <given-names>J. E.</given-names></name></person-group> (<year>2002</year>). <article-title>The hereford bull: his contribution to new world and domestic beef supplies</article-title>. <source>Agric. Hist. Rev.</source> <volume>50</volume>, <fpage>69</fpage>&#x02013;<lpage>88</lpage>. <ext-link ext-link-type="uri" xlink:href="https://www.bahs.org.uk/AgHRVOL.html?YEAR=2002&#x00026;MOD=this">https://www.bahs.org.uk/AgHRVOL.html?YEAR=2002&#x00026;MOD=this</ext-link></citation>
</ref>
<ref id="B62">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Guldi</surname> <given-names>J.</given-names></name> <name><surname>Armitage</surname> <given-names>D.</given-names></name></person-group> (<year>2014</year>). <source>The History Manifesto</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>.</citation>
</ref>
<ref id="B63">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Hansen</surname> <given-names>P. J.</given-names></name></person-group> (<year>2020</year>). <article-title>Prospects for gene introgression or gene editing as a strategy for reduction of the impact of heat stress on production and reproduction in cattle</article-title>. <source>Theriogenology</source> <volume>154</volume>. <pub-id pub-id-type="doi">10.1016/j.theriogenology.2020.05.010</pub-id><pub-id pub-id-type="pmid">32622199</pub-id></citation></ref>
<ref id="B64">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Haraway</surname> <given-names>D. J.</given-names></name></person-group> (<year>1989</year>). <source>Primate Visions: Gender, Race, and Nature in the World of Modern Science</source>. <publisher-loc>London</publisher-loc>: <publisher-name>Routledge</publisher-name>.</citation>
</ref>
<ref id="B65">
<citation citation-type="web"><person-group person-group-type="author"><name><surname>Hennig</surname> <given-names>S. L.</given-names></name></person-group> (<year>2018</year>). <source>Improving Dairy Cattle Welfare Standards through Genetic Dehorning by Using TALENs/CRISPR-Cas9 - ProQuest</source>. <publisher-name>University of California-Davis</publisher-name>. Available online at: <ext-link ext-link-type="uri" xlink:href="https://www.proquest.com/openview/d6f31c80876d05767c87a27eca5800ea/1?pq-origsite=gscholarandcbl=18750andcasa_token=uUH5mwlhxkkAAAAA:azUrdptuRPynIDi3lNrO1RqU44nsWToT8tsQpoi9Mjl3WbnioEkk4Z1lNWeT7sPGqtu-60zsuA">https://www.proquest.com/openview/d6f31c80876d05767c87a27eca5800ea/1?pq-origsite=gscholarandcbl=18750andcasa_token=uUH5mwlhxkkAAAAA:azUrdptuRPynIDi3lNrO1RqU44nsWToT8tsQpoi9Mjl3WbnioEkk4Z1lNWeT7sPGqtu-60zsuA</ext-link> (accessed May 1, 2022).</citation>
</ref>
<ref id="B66">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Hern&#x000E1;ndez</surname> <given-names>L.</given-names></name></person-group> (ed.). (<year>2001</year>). <source>Historia ambiental de la ganader&#x000ED;a en M&#x000E9;xico</source>. <publisher-loc>Xalapa; Veracruz</publisher-loc>: <publisher-name>Instituto de Ecolog&#x000ED;a</publisher-name>.</citation>
</ref>
<ref id="B67">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Higgs</surname> <given-names>E.</given-names></name> <name><surname>Falk</surname> <given-names>D. A.</given-names></name> <name><surname>Guerrini</surname> <given-names>A.</given-names></name> <name><surname>Hall</surname> <given-names>M.</given-names></name> <name><surname>Harris</surname> <given-names>L.</given-names></name> <name><surname>Hobbs</surname> <given-names>R. J.</given-names></name> <etal/></person-group>. (<year>2014</year>). <article-title>The changing role of history in restoration ecology</article-title>. <source>Front. Ecol. Environ.</source> <volume>12</volume>, <fpage>499</fpage>&#x02013;<lpage>506</lpage>. <pub-id pub-id-type="doi">10.1890/110267</pub-id></citation>
</ref>
<ref id="B68">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Hock</surname> <given-names>Z.</given-names></name></person-group> (<year>2021</year>). <source>Editing the Truth: Genome Editing Is Not a Solution to Climate Change</source>. <publisher-loc>Brussels</publisher-loc>: <publisher-name>Friends of the Earth Europe</publisher-name>.</citation>
</ref>
<ref id="B69">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Holloway</surname> <given-names>L.</given-names></name></person-group> (<year>2007</year>). <article-title>Subjecting cows to robots: farming technologies and the making of animal subjects</article-title>. <source>Environ. Plan. D Soc. Space</source> <volume>25</volume>, <fpage>1041</fpage>&#x02013;<lpage>1060</lpage>. <pub-id pub-id-type="doi">10.1068/d77j</pub-id></citation>
</ref>
<ref id="B70">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Holloway</surname> <given-names>L.</given-names></name> <name><surname>Bear</surname> <given-names>C.</given-names></name></person-group> (<year>2017</year>). <article-title>Bovine and human becomings in histories of dairy technologies: robotic milking systems and remaking animal and human subjectivity</article-title>. <source>Br. J. Hist. Sci.</source> <volume>2</volume>, <fpage>215</fpage>&#x02013;<lpage>234</lpage>. <pub-id pub-id-type="doi">10.1017/bjt.2017.2</pub-id></citation>
</ref>
<ref id="B71">
<citation citation-type="web"><person-group person-group-type="author"><name><surname>Hove</surname> <given-names>G.</given-names></name> <name><surname>Swart</surname> <given-names>S.</given-names></name></person-group> (<year>2016</year>). <article-title>The cinderella of the cattle industry: the state and settler commercial dairy farming in Southern Rhodesia, c.1908 to 1937</article-title>. <source>Agric. Hist. Rev.</source> <volume>64</volume>, <fpage>81</fpage>&#x02013;<lpage>116</lpage>. <ext-link ext-link-type="uri" xlink:href="https://www.bahs.org.uk/AgHRVOL.html?YEAR=2016&#x00026;MOD=this">https://www.bahs.org.uk/AgHRVOL.html?YEAR=2016&#x00026;MOD=this</ext-link></citation>
</ref>
<ref id="B72">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Howkins</surname> <given-names>A.</given-names></name> <name><surname>Merricks</surname> <given-names>L.</given-names></name></person-group> (<year>2000</year>). <article-title>&#x02018;Dewy-eyed veal calves&#x00027;. Live animal exports and middle-class opinion, 1980&#x02013;1995</article-title>. <source>Agric. Hist. Rev.</source> <volume>48</volume>, <fpage>85</fpage>&#x02013;<lpage>103</lpage>.</citation>
</ref>
<ref id="B73">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Hribal</surname> <given-names>J.</given-names></name></person-group> (<year>2003</year>). <article-title>&#x02018;Animals are part of the working class&#x00027;: a challenge to labor history</article-title>. <source>Labor Hist.</source> <volume>44</volume>, <fpage>435</fpage>&#x02013;<lpage>453</lpage>. <pub-id pub-id-type="doi">10.1080/0023656032000170069</pub-id></citation>
</ref>
<ref id="B74">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Hudson</surname> <given-names>M.</given-names></name> <name><surname>Te Pareake Mead</surname> <given-names>A.</given-names></name> <name><surname>Chagn&#x000E9;</surname> <given-names>D.</given-names></name> <name><surname>Roskruge</surname> <given-names>N.</given-names></name> <name><surname>Morrison</surname> <given-names>S.</given-names></name> <name><surname>Wilcox</surname> <given-names>P. L.</given-names></name> <etal/></person-group>. (<year>2019</year>). <article-title>Indigenous perspectives and gene editing in Aotearoa New Zealand</article-title>. <source>Front. Bioeng. Biotechnol.</source> <volume>7</volume>, <fpage>70</fpage>. <pub-id pub-id-type="doi">10.3389/fbioe.2019.00070</pub-id><pub-id pub-id-type="pmid">31032252</pub-id></citation></ref>
<ref id="B75">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>J&#x000F8;rgensen</surname> <given-names>D.</given-names></name></person-group> (<year>2013</year>). <article-title>Running amuck? Urban swine management in late Medieval England</article-title>. <source>Agric. Hist.</source> <volume>87</volume>, <fpage>429</fpage>&#x02013;<lpage>451</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2013.87.4.429</pub-id></citation>
</ref>
<ref id="B76">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Kassen</surname> <given-names>C.</given-names></name></person-group> (<year>2020</year>). <source>Fleisch: Die Geschichte Einer Industrialisierung</source>. <publisher-loc>Leiden, NL</publisher-loc>: <publisher-name>Brill</publisher-name>.</citation>
</ref>
<ref id="B77">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Kevles</surname> <given-names>D. J.</given-names></name></person-group> (<year>2007</year>). <article-title>Patents, protections, and privileges: the establishment of intellectual property in animals and plants</article-title>. <source>Isis</source> <volume>98</volume>, <fpage>323</fpage>&#x02013;<lpage>331</lpage>. <pub-id pub-id-type="doi">10.1086/518192</pub-id></citation>
</ref>
<ref id="B78">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Kirchberger</surname> <given-names>U.</given-names></name></person-group> (<year>2020</year>). <article-title>Temporalising nature: chronologies of colonial species transfer and ecological change across the indian ocean in the age of empire</article-title>. <source>Int. Rev. Environ. Hist.</source> <volume>6</volume>, <fpage>26</fpage>. <pub-id pub-id-type="doi">10.22459/IREH.06.01.2020.05</pub-id></citation>
</ref>
<ref id="B79">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Knab</surname> <given-names>C.</given-names></name></person-group> (<year>2011</year>). <article-title>Infectious rats and dangerous cows: transnational perspectives on animal diseases in the first half of the twentieth century</article-title>. <source>Contemp. Eur. Hist.</source> <volume>20</volume>, <fpage>281</fpage>&#x02013;<lpage>306</lpage>. <pub-id pub-id-type="doi">10.1017/S0960777311000324</pub-id></citation>
</ref>
<ref id="B80">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Kramer</surname> <given-names>K.</given-names></name> <name><surname>Meijboom</surname> <given-names>F. L. B.</given-names></name></person-group> (<year>2020</year>). <source>The Societal Context of Innovations of Cattle Genetics</source>. <publisher-loc>Brussels</publisher-loc>: <publisher-name>BovReg Consortium and European Union</publisher-name>.</citation>
</ref>
<ref id="B81">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Kr&#x000E4;tli</surname> <given-names>S.</given-names></name></person-group> (<year>2010</year>). <article-title>Animal science and the representation of local breeds looking into the sources of current characterization of bororo zebu</article-title>, in <source>Healing the Herds</source>, eds. <person-group person-group-type="editor"><name><surname>Brown</surname> <given-names>K.</given-names></name> <name><surname>Gilfoyle</surname> <given-names>D.</given-names></name></person-group> (<publisher-loc>Athens</publisher-loc>: <publisher-name>Ohio University Press</publisher-name>).</citation>
</ref>
<ref id="B82">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Kreiner</surname> <given-names>J.</given-names></name></person-group> (<year>2017</year>). <article-title>Pigs in the flesh and fisc: an early medieval ecology</article-title>. <source>Past Present</source> <volume>236</volume>, <fpage>3</fpage>&#x02013;<lpage>42</lpage>. <pub-id pub-id-type="doi">10.1093/pastj/gtx031</pub-id></citation>
</ref>
<ref id="B83">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Kreiner</surname> <given-names>J.</given-names></name></person-group> (<year>2020</year>). <source>Legions of Pigs in the Early Medieval West</source>. <publisher-loc>New Haven, CT</publisher-loc>: <publisher-name>Yale University Press</publisher-name>.</citation>
</ref>
<ref id="B84">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Kr&#x000FC;ger</surname> <given-names>G.</given-names></name> <name><surname>Steinbrecher</surname> <given-names>A.</given-names></name> <name><surname>Wischermann</surname> <given-names>C.</given-names></name></person-group>(eds.) (<year>2014</year>). <source>Tiere Und Geschichte. Konturen Einer &#x0201C;Animate History.&#x0201D;</source> <publisher-loc>Stuttgart</publisher-loc>: <publisher-name>Franz Steiner Verlag</publisher-name>.</citation>
</ref>
<ref id="B85">
<citation citation-type="web"><person-group person-group-type="author"><name><surname>Kumar</surname> <given-names>A. T.</given-names></name> <name><surname>Singh</surname> <given-names>R.</given-names></name> <name><surname>Panwar</surname> <given-names>P. S.</given-names></name></person-group> (<year>2015</year>). <article-title>Ancient Indian literature on livestock breeding and nutrition corroborated by modern literature</article-title>. <source>Asian Agri-History</source> <volume>19</volume>, <fpage>205</fpage>&#x02013;<lpage>213</lpage>. <ext-link ext-link-type="uri" xlink:href="https://www.researchgate.net/publication/286467084_Ancient_Indian_literature_on_importance_of_livestock_from_pre-vedic_to_Ashoka_period">https://www.researchgate.net/publication/286467084_Ancient_Indian_literature_on_importance_of_livestock_from_pre-vedic_to_Ashoka_period</ext-link></citation>
</ref>
<ref id="B86">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Langston</surname> <given-names>N.</given-names></name></person-group> (<year>2010</year>). <source>Toxic Bodies: Hormone Disruptors and the Legacy of DES</source>. <publisher-loc>New Have, CT</publisher-loc>: <publisher-name>Yale University Press</publisher-name>.</citation>
</ref>
<ref id="B87">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>LeCain</surname> <given-names>T. J.</given-names></name></person-group> (<year>2017</year>). <source>The Matter of History: How Things Create the Past</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>.</citation>
</ref>
<ref id="B88">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Li</surname> <given-names>C.</given-names></name></person-group> (<year>2000</year>). <article-title>A union of christianity, humanity, and philanthropy: the christian tradition and the prevention of cruelty to animals in nineteenth-century England</article-title>. <source>Soc. Anim.</source> <volume>8</volume>, <fpage>265</fpage>&#x02013;<lpage>285</lpage>. <pub-id pub-id-type="doi">10.1163/156853000X00174</pub-id></citation>
</ref>
<ref id="B89">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Lopes</surname> <given-names>M.</given-names></name> <name><surname>Riguzzi</surname> <given-names>P.</given-names></name></person-group> (<year>2012</year>). <article-title>Borders, trade, and politics: exchange between the United States and Mexican Cattle industries, 1870&#x02013;1947</article-title>. <source>Hispanic Am. Hist. Rev.</source> <volume>92</volume>, <fpage>603</fpage>&#x02013;<lpage>635</lpage>. <pub-id pub-id-type="doi">10.1215/00182168-1727827</pub-id></citation>
</ref>
<ref id="B90">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Malcolmson</surname> <given-names>R.</given-names></name> <name><surname>Mastoris</surname> <given-names>S.</given-names></name></person-group> (<year>1998</year>). <source>The English Pig: A History</source>. <publisher-loc>London</publisher-loc>: <publisher-name>Hambledon Press</publisher-name>.</citation>
</ref>
<ref id="B91">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Matz</surname> <given-names>B.</given-names></name></person-group> (<year>2011a</year>). <article-title>Crossing, grading, and keeping pure: animal breeding and exchange around 1860</article-title>. <source>Endeavour</source> <volume>35</volume>, <fpage>7</fpage>&#x02013;<lpage>15</lpage>. <pub-id pub-id-type="doi">10.1016/j.endeavour.2010.12.001</pub-id><pub-id pub-id-type="pmid">21296424</pub-id></citation></ref>
<ref id="B92">
<citation citation-type="web"><person-group person-group-type="author"><name><surname>Matz</surname> <given-names>B.</given-names></name></person-group> (<year>2011b</year>). <source>Crafting heredity: the art and science of livestock breeding in the United States and Germany, 1860&#x02013;1914</source>. <publisher-name>(Ph.D. thesis). Yale University</publisher-name>. Available online at: <ext-link ext-link-type="uri" xlink:href="http://www.proquest.com/pqdtglobal/docview/922283644/abstract/4D380A98A1B840E1PQ/1">http://www.proquest.com/pqdtglobal/docview/922283644/abstract/4D380A98A1B840E1PQ/1</ext-link> (accessed May 1, 2022).</citation>
</ref>
<ref id="B93">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>McInerney</surname> <given-names>J.</given-names></name></person-group> (<year>2010</year>). <source>The Cattle of the Sun: Cows and Culture in the World of the Ancient Greeks</source>. <publisher-loc>Princeton, NJ</publisher-loc>: <publisher-name>Princeton University Press</publisher-name>.</citation>
</ref>
<ref id="B94">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>McNeur</surname> <given-names>C.</given-names></name></person-group> (<year>2014</year>). <source>Taming Manhattan: Environmental Battles in the Antebellum City. Taming Manhattan</source>. <publisher-loc>Cambridge, MA</publisher-loc>: <publisher-name>Harvard University Press</publisher-name>.</citation>
</ref>
<ref id="B95">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Melville</surname> <given-names>E. G. K.</given-names></name></person-group> (<year>1997</year>). <source>A Plague of Sheep: Environmental Consequences of the Conquest of Mexico</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>.</citation>
</ref>
<ref id="B96">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Mendoza</surname> <given-names>M. E.</given-names></name></person-group> (<year>2018</year>). <article-title>Fencing the line: race, environment, and the changing visual landscape at the US-Mexico divide.</article-title> in <source>Border Spaces: Visualizing the US-Mexico Frontera</source>, eds. <person-group person-group-type="editor"><name><surname>Morrissey</surname> <given-names>K. G.</given-names></name> <name><surname>Warner</surname> <given-names>J.-M. H.</given-names></name></person-group> (<publisher-loc>Tucson</publisher-loc>: <publisher-name>University of Arizona Press</publisher-name>), <fpage>66</fpage>&#x02013;<lpage>85</lpage>.</citation>
</ref>
<ref id="B97">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Mikhail</surname> <given-names>A.</given-names></name></person-group> (<year>2014</year>). <source>The Animal in Ottoman Egypt</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Oxford University Press</publisher-name>.</citation>
</ref>
<ref id="B98">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Milne</surname> <given-names>A.</given-names></name></person-group> (<year>2010</year>). <article-title>Sentient genetics: breeding the animal breeder as fundamental other</article-title>. <source>J. Eighteenth-Century Stud.</source> <volume>33</volume>, <fpage>583</fpage>&#x02013;<lpage>597</lpage>. <pub-id pub-id-type="doi">10.1111/j.1754-0208.2010.00324.x</pub-id></citation>
</ref>
<ref id="B99">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Mishra</surname> <given-names>S.</given-names></name></person-group> (<year>2012</year>). <article-title>The economics of reproduction: horse-breeding in early colonial India, 1790&#x02013;1840</article-title>. <source>Modern Asian Stud.</source> <volume>46</volume>, <fpage>1116</fpage>&#x02013;<lpage>44</lpage>. <pub-id pub-id-type="doi">10.1017/S0026749X12000339</pub-id></citation>
</ref>
<ref id="B100">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Mwatwara</surname> <given-names>W.</given-names></name> <name><surname>Swart</surname> <given-names>S.</given-names></name></person-group> (<year>2015</year>). <article-title>&#x02018;It is no use advising us! Command us and we will obey&#x00027;: livestock management, soil conservation and the state in Southern Rhodesia, c. 1930-50</article-title>. <source>Environ. Hist.</source> <volume>21</volume>, <fpage>567</fpage>&#x02013;<lpage>96</lpage>. <pub-id pub-id-type="doi">10.3197/096734015X14414683716280</pub-id></citation>
</ref>
<ref id="B101">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Naab</surname> <given-names>F. Z.</given-names></name> <name><surname>Coles</surname> <given-names>D.</given-names></name> <name><surname>Goddard</surname> <given-names>E.</given-names></name> <name><surname>Frewer</surname> <given-names>J. L.</given-names></name></person-group> (<year>2021</year>). <article-title>Public perceptions regarding genomic technologies applied to breeding farm animals: a qualitative study</article-title>. <source>BioTech</source> <volume>10</volume>, <fpage>28</fpage>. <pub-id pub-id-type="doi">10.3390/biotech10040028</pub-id><pub-id pub-id-type="pmid">35822802</pub-id></citation></ref>
<ref id="B102">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Nance</surname> <given-names>S.</given-names></name></person-group> (<year>2015</year>). <source>The Historical Animal</source>. <publisher-loc>Syracuse, NY</publisher-loc>: <publisher-name>Syracuse University Press</publisher-name>.</citation>
</ref>
<ref id="B103">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Nelson</surname> <given-names>A.</given-names></name></person-group> (<year>2010</year>). <article-title>The body of the beast: animal protection and anticruelty legislation in Imperial Russia.</article-title> in <source>Other Animals: Beyond the Human in Russian Culture and History</source>, eds. <person-group person-group-type="editor"><name><surname>Costlow</surname> <given-names>J.</given-names></name> <name><surname>Nelson</surname> <given-names>A.</given-names></name></person-group> (<publisher-loc>Pittsburgh, PA</publisher-loc>: <publisher-name>University of Pittsburgh Press</publisher-name>), <fpage>95</fpage>&#x02013;<lpage>112</lpage>.</citation>
</ref>
<ref id="B104">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Netz</surname> <given-names>R.</given-names></name></person-group> (<year>2004</year>). <source>Barbed Wire: An Ecology of Modernity</source>. <publisher-loc>Middletown, CT</publisher-loc>: <publisher-name>Wesleyan University Press</publisher-name>.</citation>
</ref>
<ref id="B105">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Neustadt</surname> <given-names>R. E.</given-names></name> <name><surname>May</surname> <given-names>E. R.</given-names></name></person-group> (<year>1986</year>). <source>Thinking in Time: The Uses of History for Decision Makers</source>. <publisher-name>New York, NY. Freedom Press</publisher-name>.</citation>
</ref>
<ref id="B106">
<citation citation-type="book"><person-group person-group-type="author"><collab>Nuffield Council on Bioethics</collab></person-group> (<year>2021</year>). <source>Online Public Dialogue on Genome Editing in Farmed Animals</source>. <publisher-loc>London</publisher-loc>: <publisher-name>Nuffield Council on Bioethics</publisher-name>.</citation>
</ref>
<ref id="B107">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Oreskes</surname> <given-names>N.</given-names></name> <name><surname>Conway</surname> <given-names>E. M.</given-names></name></person-group> (<year>2014</year>). <article-title>The Collapse of Western Civilization: A View from the Future</article-title>. <source>New York: Columbia University Press</source>. <pub-id pub-id-type="doi">10.7312/columbia/9780231169547.001.0001</pub-id></citation>
</ref>
<ref id="B108">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Orland</surname> <given-names>B.</given-names></name></person-group> (<year>2004</year>). <article-title>Turbo-cows: producing a competitive animal in the nineneeth and early twentieth centuries</article-title>, in <source>Industrializing Organisms: Introducing Evolutionary History</source>, eds. <person-group person-group-type="editor"><name><surname>Schrepfer</surname> <given-names>S. R.</given-names></name> <name><surname>Scranton</surname> <given-names>P.</given-names></name></person-group> (<publisher-loc>London</publisher-loc>: <publisher-name>Routledge</publisher-name>).</citation>
</ref>
<ref id="B109">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Osei-Amponsah</surname> <given-names>R.</given-names></name> <name><surname>Dunshea</surname> <given-names>F. R.</given-names></name> <name><surname>Leury</surname> <given-names>B. J.</given-names></name> <name><surname>Cheng</surname> <given-names>L.</given-names></name> <name><surname>Cullen</surname> <given-names>B.</given-names></name> <name><surname>Joy</surname> <given-names>A.</given-names></name> <etal/></person-group>. (<year>2020</year>). <article-title>Heat stress impacts on lactating cows grazing australian summer pastures on an automatic robotic dairy</article-title>. <source>Animals</source> <volume>10</volume>, <fpage>869</fpage>. <pub-id pub-id-type="doi">10.3390/ani10050869</pub-id><pub-id pub-id-type="pmid">32429603</pub-id></citation></ref>
<ref id="B110">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Osypi&#x00144;ska</surname> <given-names>M.</given-names></name> <name><surname>Zurawski</surname> <given-names>B.T.</given-names></name></person-group> (<year>2020</year>). <article-title>Pork for pilgrims: livestock breeding and meat consumption at Medieval Banganarti, Nubia</article-title>. <source>Antiquity</source> <volume>94</volume>, <fpage>164</fpage>&#x02013;<lpage>178</lpage>. <pub-id pub-id-type="doi">10.15184/aqy.2019.235</pub-id></citation>
</ref>
<ref id="B111">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Page</surname> <given-names>M. J.</given-names></name> <name><surname>McKenzie</surname> <given-names>J. E.</given-names></name> <name><surname>Bossuyt</surname> <given-names>P. M.</given-names></name> <name><surname>Boutron</surname> <given-names>I.</given-names></name> <name><surname>Hoffmann</surname> <given-names>T. C.</given-names></name> <name><surname>Mulrow</surname> <given-names>C. D.</given-names></name> <etal/></person-group>. (<year>2021</year>). <article-title>The PRISMA 2020 statement: an updated guideline for reporting systematic reviews</article-title>. <source>Syst. Rev.</source> <volume>10</volume>, <fpage>89</fpage>. <pub-id pub-id-type="doi">10.1186/s13643-021-01626-4</pub-id><pub-id pub-id-type="pmid">34446261</pub-id></citation></ref>
<ref id="B112">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Pawley</surname> <given-names>E.</given-names></name></person-group> (<year>2016</year>). <article-title>The point of perfection: cattle portraiture, bloodlines, and the meaning of breeding, 1760-1860</article-title>. <source>J. Early Republic</source> <volume>36</volume>, <fpage>37</fpage>&#x02013;<lpage>72</lpage>. <pub-id pub-id-type="doi">10.1353/jer.2016.0014</pub-id></citation>
</ref>
<ref id="B113">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Pawley</surname> <given-names>E.</given-names></name></person-group> (<year>2018</year>). <article-title>Feeding desire: generative environments, meat markets, and the management of sheep intercourse in Great Britain, 1700&#x02013;1750</article-title>. <source>Osiris</source> <volume>33</volume>, <fpage>47</fpage>&#x02013;<lpage>62</lpage>. <pub-id pub-id-type="doi">10.1086/699233</pub-id></citation>
</ref>
<ref id="B114">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Pawley</surname> <given-names>E.</given-names></name></person-group> (<year>2020</year>). <source>The Nature of the Future: Agriculture, Science, and Capitalism in the Antebellum North</source>. <publisher-loc>Chicago, IL</publisher-loc>: <publisher-name>University of Chicago Press</publisher-name>.</citation>
</ref>
<ref id="B115">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Peden</surname> <given-names>R.</given-names></name></person-group> (<year>2013</year>). <source>Making Sheep Country: Mt Peel Station and the Transformation of the Tussock Lands</source>. <publisher-loc>Auckland, NZ</publisher-loc>: <publisher-name>Auckland University Press</publisher-name>.</citation>
</ref>
<ref id="B116">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Pelozatto Reilly</surname> <given-names>M. L.</given-names></name></person-group> (<year>2016</year>). <article-title>Ganader&#x000ED;a y unidades productivas mixtas en Buenos Aires colonial, 1726-1759</article-title>. <source>Revista Hist. Geograf&#x000ED;a</source> <volume>34</volume>, <fpage>43</fpage>&#x02013;<lpage>65</lpage>. <pub-id pub-id-type="doi">10.29344/07194145.34.354</pub-id></citation>
</ref>
<ref id="B117">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Perrins</surname> <given-names>R. J.</given-names></name></person-group> (<year>2010</year>). <article-title>Holding water in bamboo buckets agricultural science, livestock breeding, and veterinary medicine in colonial manchuria</article-title>, in <source>Healing the Herds</source>, eds. <person-group person-group-type="editor"><name><surname>Brown</surname> <given-names>K.</given-names></name> <name><surname>Gilfoyle</surname> <given-names>D.</given-names></name></person-group> (<publisher-loc>Athens</publisher-loc>: <publisher-name>Ohio University Press</publisher-name>).</citation>
</ref>
<ref id="B118">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Poczai</surname> <given-names>P.</given-names></name> <name><surname>Bell</surname> <given-names>N.</given-names></name> <name><surname>Hyv&#x000F6;nen</surname> <given-names>J.</given-names></name></person-group> (<year>2014</year>). <article-title>Imre festetics and the sheep breeders&#x00027; society of Moravia: Mendel&#x00027;s forgotten &#x02018;research network.&#x00027;</article-title> <source>PLoS Biology</source> <volume>12</volume>, <fpage>e1001772</fpage>. <pub-id pub-id-type="doi">10.1371/journal.pbio.1001772</pub-id><pub-id pub-id-type="pmid">24465180</pub-id></citation></ref>
<ref id="B119">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Polsky</surname> <given-names>L.</given-names></name> <name><surname>von Keyserlingk</surname> <given-names>M. A. G.</given-names></name></person-group> (<year>2017</year>). <article-title>Invited review: effects of heat stress on dairy cattle welfare</article-title>. <source>J Dairy Sci.</source> <volume>100</volume>, <fpage>8645</fpage>&#x02013;<lpage>8657</lpage>. <pub-id pub-id-type="doi">10.3168/jds.2017-12651</pub-id><pub-id pub-id-type="pmid">28918147</pub-id></citation></ref>
<ref id="B120">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Randhawa</surname> <given-names>M. S.</given-names></name></person-group> (<year>1986</year>). <source>A History of Agriculture in India, 1947-1981</source>. <publisher-loc>New Delhi</publisher-loc>: <publisher-name>Indian Council of Agricultural Research</publisher-name>.</citation>
</ref>
<ref id="B121">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Ritter</surname> <given-names>C.</given-names></name> <name><surname>Beaver</surname> <given-names>A.</given-names></name> <name><surname>von Keyserlingk</surname> <given-names>M. A. G.</given-names></name></person-group> (<year>2019</year>). <article-title>The complex relationship between welfare and reproduction in cattle</article-title>. <source>Reprod. Domest. Anim.</source> <volume>54</volume>, <fpage>29</fpage>&#x02013;<lpage>37</lpage>. <pub-id pub-id-type="doi">10.1111/rda.13464</pub-id><pub-id pub-id-type="pmid">31512321</pub-id></citation></ref>
<ref id="B122">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Ritvo</surname> <given-names>H.</given-names></name></person-group> (<year>1987</year>). <source>The Animal Estate: The English and Other Creatures in Victorian England</source>. <publisher-loc>Cambridge, MA</publisher-loc>: <publisher-name>Harvard University Press</publisher-name>.</citation>
</ref>
<ref id="B123">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Ritvo</surname> <given-names>H.</given-names></name></person-group> (<year>2010</year>). <article-title>Race, breed, and myths of origin: Chillingham cattle as ancient Britons</article-title>, in <source>Noble Cows and Hybrid Zebras: Essays on Animals and History</source>, ed <person-group person-group-type="editor"><name><surname>Ritvo</surname> <given-names>H.</given-names></name></person-group> (<publisher-loc>Charlottesville</publisher-loc>: <publisher-name>University of Virginia Press</publisher-name>), <fpage>132</fpage>&#x02013;<lpage>156</lpage>.</citation>
</ref>
<ref id="B124">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Robichaud</surname> <given-names>A. A.</given-names></name></person-group> (<year>2019</year>). <source>Animal City: The Domestication of Urban America</source>. <publisher-loc>Cambridge, MA</publisher-loc>: <publisher-name>Harvard University Press</publisher-name>.</citation>
</ref>
<ref id="B125">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Rosenberg</surname> <given-names>G. N.</given-names></name></person-group> (<year>2016</year>). <article-title>A race suicide among the hogs: the biopolitics of pork in the United States, 1865&#x02013;1930</article-title>. <source>Am. Quart.</source> <volume>68</volume>, <fpage>49</fpage>&#x02013;<lpage>73</lpage>. <pub-id pub-id-type="doi">10.1353/aq.2016.0007</pub-id></citation>
</ref>
<ref id="B126">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Rosenberg</surname> <given-names>G. N.</given-names></name></person-group> (<year>2017</year>). <article-title>How meat changed sex: the law of interspecies intimacy after industrial reproduction</article-title>. <source>GLQ J. Lesbian Gay Stud.</source> <volume>23</volume>, <fpage>473</fpage>&#x02013;<lpage>507</lpage>. <pub-id pub-id-type="doi">10.1215/10642684-4157487</pub-id></citation>
</ref>
<ref id="B127">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Rosenberg</surname> <given-names>G. N.</given-names></name></person-group> (<year>2020</year>). <article-title>No scrubs: livestock breeding, eugenics, and the state in the early twentieth-century United States</article-title>. <source>J. Am. Hist.</source> <volume>107</volume>, <fpage>362</fpage>&#x02013;<lpage>387</lpage>. <pub-id pub-id-type="doi">10.1093/jahist/jaaa179</pub-id></citation>
</ref>
<ref id="B128">
<citation citation-type="web"><person-group person-group-type="author"><name><surname>Rowntree</surname> <given-names>J. E.</given-names></name> <name><surname>Ryals</surname> <given-names>R.</given-names></name> <name><surname>DeLonge</surname> <given-names>M. S.</given-names></name> <name><surname>Teague</surname> <given-names>W. R.</given-names></name> <name><surname>Chiavegato</surname> <given-names>M. B.</given-names></name> <name><surname>Byck</surname> <given-names>P.</given-names></name> <etal/></person-group>. (<year>2016</year>). <article-title>Potential mitigation of midwest grass-finished beef production emissions with soil carbon sequestration in the United States of America</article-title>. <source>Future Food J. Food Agric. Soc.</source> <volume>4</volume>, <fpage>31</fpage>&#x02013;<lpage>38</lpage>. <ext-link ext-link-type="uri" xlink:href="https://vermonthistory.org/volume-85-2017">https://vermonthistory.org/volume-85-2017</ext-link></citation>
</ref>
<ref id="B129">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Russell</surname> <given-names>E.</given-names></name></person-group> (<year>2011</year>). <source>Evolutionary History: Uniting History and Biology to Understand Life on Earth</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>.</citation>
</ref>
<ref id="B130">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Russell</surname> <given-names>N.</given-names></name></person-group> (<year>1987</year>). <source>Like Engend&#x00027;ring Like: Heredity and Animal Breeding in Early Modern England</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>.</citation>
</ref>
<ref id="B131">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Saha</surname> <given-names>J.</given-names></name></person-group> (<year>2016</year>). <article-title>Milk to mandalay: dairy consumption, animal history and the political geography of Colonial Burma</article-title>. <source>J. Hist. Geogr.</source> <volume>54</volume>, <fpage>1</fpage>&#x02013;<lpage>12</lpage>. <pub-id pub-id-type="doi">10.1016/j.jhg.2016.05.016</pub-id></citation>
</ref>
<ref id="B132">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Sand</surname> <given-names>J.</given-names></name></person-group> (<year>2021</year>). <article-title>People, animals, and island encounters: a pig&#x00027;s history of the pacific</article-title>. <source>J. Global Hist.</source> <fpage>1</fpage>&#x02013;<lpage>19</lpage>. <pub-id pub-id-type="doi">10.1017/S1740022821000383</pub-id></citation>
</ref>
<ref id="B133">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Saraiva</surname> <given-names>T.</given-names></name></person-group> (<year>2016</year>). <source>Fascist Pigs: Technoscientific Organisms and the History of Fascism</source>. <publisher-loc>Cambridge, MA</publisher-loc>: <publisher-name>MIT Press</publisher-name>.</citation>
</ref>
<ref id="B134">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Saucier</surname> <given-names>O. R.</given-names></name> <name><surname>Parsons</surname> <given-names>R. L.</given-names></name></person-group> (<year>2014</year>). <article-title>Refusing to &#x02018;push the cows&#x00027;: the rise of organic dairying in the Northeast and Midwest in the 1970s&#x02212;1980s</article-title>. <source>Agric. Hist.</source> <volume>88</volume>, <fpage>237</fpage>&#x02013;<lpage>261</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2014.88.2.237</pub-id></citation>
</ref>
<ref id="B135">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Sayer</surname> <given-names>K.</given-names></name></person-group> (<year>2013</year>). <article-title>Animal Machines: the public response to intensification in Great Britain, c. 1960-c. 1973</article-title>. <source>Agric. Hist.</source> <volume>87</volume>, <fpage>473</fpage>&#x02013;<lpage>501</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2013.87.4.473</pub-id></citation>
</ref>
<ref id="B136">
<citation citation-type="web"><person-group person-group-type="author"><name><surname>Schmalzer</surname> <given-names>S.</given-names></name></person-group> (<year>2016</year>). <source>Red Revolution, Green Revolution: Scientific Farming in Socialist China</source>. <publisher-loc>Chicago, IL</publisher-loc>: <publisher-name>University of Chicago Press</publisher-name>. Available online at: <ext-link ext-link-type="uri" xlink:href="https://press.uchicago.edu/ucp/books/book/chicago/R/bo22541357.html">https://press.uchicago.edu/ucp/books/book/chicago/R/bo22541357.html</ext-link> (accessed May 1, 2022).</citation>
</ref>
<ref id="B137">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Schneider</surname> <given-names>M.</given-names></name></person-group> (<year>2018</year>). <article-title>Reforming the humble pig: pigs, pork and contemporary China.</article-title> in <source>Animals through Chinese History: Earliest Times to 1911</source>, eds. <person-group person-group-type="editor"><name><surname>Siebert</surname> <given-names>R. S. M.</given-names></name> <name><surname>Sch&#x000E4;fer</surname> <given-names>D.</given-names></name></person-group> (<publisher-loc>Cambridge</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>), <fpage>233</fpage>&#x02013;<lpage>43</lpage>.</citation>
</ref>
<ref id="B138">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Schrepfer</surname> <given-names>S. R.</given-names></name> <name><surname>Scranton</surname> <given-names>P.</given-names></name></person-group> (eds.) (<year>2004</year>). <source>Industrializing Organisms: Introducing Evolutionary History.</source> <publisher-loc>London</publisher-loc>: <publisher-name>Routledge</publisher-name>.</citation>
</ref>
<ref id="B139">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Schwartz</surname> <given-names>A. C.</given-names></name></person-group> (<year>2018</year>). <article-title>Shang sacrificial animals: material documents and images.</article-title> in <source>Animals through Chinese History: Earliest Times to 1911</source>, eds. <person-group person-group-type="editor"><name><surname>Siebert</surname> <given-names>R. S. M.</given-names></name> <name><surname>Sch&#x000E4;fer</surname> <given-names>D.</given-names></name></person-group> (<publisher-loc>Cambridge</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>), <fpage>20</fpage>&#x02013;<lpage>45</lpage>.</citation>
</ref>
<ref id="B140">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Settele</surname> <given-names>V.</given-names></name></person-group> (<year>2020</year>). <source>Revolution Im Stall. Landwirtschaftliche Tierhaltung in Deutschland 1945-1990</source>. <publisher-loc>G&#x000F6;ttingen</publisher-loc>: <publisher-name>Vandenhock and Ruprecht</publisher-name>.</citation>
</ref>
<ref id="B141">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Simon</surname> <given-names>Z. B.</given-names></name> <name><surname>Tamm</surname> <given-names>M.</given-names></name> <name><surname>Doma&#x00144;ska</surname> <given-names>E.</given-names></name></person-group> (<year>2021</year>). <article-title>Anthropocenic historical knowledge: promises and pitfalls</article-title>. <source>Rethinking Hist.</source> <volume>25</volume>, <fpage>406</fpage>&#x02013;<lpage>439</lpage>. <pub-id pub-id-type="doi">10.1080/13642529.2021.1985224</pub-id></citation>
</ref>
<ref id="B142">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Singer</surname> <given-names>P.</given-names></name></person-group> (<year>1975</year>). <source>Animal Liberation: A New Ethics for Our Treatment of Animals</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Harper Collins</publisher-name>.</citation>
</ref>
<ref id="B143">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Skabelund</surname> <given-names>A.</given-names></name></person-group> (<year>2013</year>). <article-title>Animals and imperialism: recent historiographical trends</article-title>. <source>Hist. Compass</source> <volume>11</volume>, <fpage>801</fpage>&#x02013;<lpage>807</lpage>. <pub-id pub-id-type="doi">10.1111/hic3.12093</pub-id></citation>
</ref>
<ref id="B144">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Skidmore</surname> <given-names>M. E.</given-names></name> <name><surname>Moffette</surname> <given-names>F.</given-names></name> <name><surname>Rausch</surname> <given-names>L.</given-names></name> <name><surname>Christie</surname> <given-names>M.</given-names></name> <name><surname>Munger</surname> <given-names>J.</given-names></name> <name><surname>Gibbs</surname> <given-names>H. K.</given-names></name></person-group> (<year>2021</year>). <article-title>Cattle ranchers and deforestation in the Brazilian Amazon: Production, location, and policies</article-title>. <source>Global Environ. Change</source> <volume>68</volume>, <fpage>102280</fpage>. <pub-id pub-id-type="doi">10.1016/j.gloenvcha.2021.102280</pub-id></citation>
</ref>
<ref id="B145">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Smith</surname> <given-names>J. L.</given-names></name></person-group> (<year>2014</year>). <source>Works in Progress: Plans and Realities on Soviet Farms, 1930-1963</source>. <publisher-loc>New Haven, CT</publisher-loc>: <publisher-name>Yale University Press</publisher-name>.</citation>
</ref>
<ref id="B146">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Smith-Howard</surname> <given-names>K.</given-names></name></person-group> (<year>2010</year>). <article-title>Antibiotics and agricultural change: purifying milk and protecting health in the Postwar Era</article-title>. <source>Agric. Hist.</source> <volume>84</volume>, <fpage>327</fpage>&#x02013;<lpage>51</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2010.84.3.327</pub-id></citation>
</ref>
<ref id="B147">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Smith-Howard</surname> <given-names>K.</given-names></name></person-group> (<year>2017a</year>). <article-title>Healing animals in an antibiotic age: veterinary drugs and the professionalism crisis, 1945-1970</article-title>. <source>Technol. Cult.</source> <volume>58</volume>, <fpage>79</fpage>. <pub-id pub-id-type="doi">10.1353/tech.2017.0079</pub-id><pub-id pub-id-type="pmid">28890457</pub-id></citation></ref>
<ref id="B148">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Smith-Howard</surname> <given-names>K.</given-names></name></person-group> (<year>2017b</year>). <source>Pure and Modern Milk: An Environmental History Since 1900</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Oxford University Press</publisher-name>.</citation>
</ref>
<ref id="B149">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Specht</surname> <given-names>J.</given-names></name></person-group> (<year>2016</year>). <article-title>The rise, fall, and rebirth of the Texas Longhorn: an evolutionary history</article-title>. <source>Environ. Hist.</source> <volume>21</volume>, <fpage>343</fpage>&#x02013;<lpage>363</lpage>. <pub-id pub-id-type="doi">10.1093/envhis/emv148</pub-id></citation>
</ref>
<ref id="B150">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Specht</surname> <given-names>J.</given-names></name></person-group> (<year>2020</year>). <source>Red Meat Republic: A Hoof-to-Table History of How Beef Changed America</source>. <publisher-loc>Princeton, NJ</publisher-loc>: <publisher-name>Princeton University Press</publisher-name>.</citation>
</ref>
<ref id="B151">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Sterckx</surname> <given-names>R.</given-names></name> <name><surname>Siebert</surname> <given-names>M.</given-names></name> <name><surname>Sch&#x000E4;fer</surname> <given-names>D.</given-names></name></person-group> (eds.) (<year>2018</year>). <source>Animals Through Chinese History.</source> <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Cambridge University Press</publisher-name>.</citation>
</ref>
<ref id="B152">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Sunseri</surname> <given-names>T.</given-names></name></person-group> (<year>2021</year>). <article-title>International beef packing in the age of empire: LEMCO in South West Africa, 1906&#x02013;c.1940</article-title>. <source>South Afr. Histor. J.</source> <volume>73</volume>, <fpage>1</fpage>&#x02013;<lpage>28</lpage>. <pub-id pub-id-type="doi">10.1080/02582473.2021.1965200</pub-id></citation>
</ref>
<ref id="B153">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Swart</surname> <given-names>S.</given-names></name></person-group> (<year>2010a</year>). <source>Riding High: Horses, Humans and History in South Africa</source>. <publisher-loc>Johannesburg</publisher-loc>: <publisher-name>Wits University Press</publisher-name>.</citation>
</ref>
<ref id="B154">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Swart</surname> <given-names>S.</given-names></name></person-group> (<year>2010b</year>). <article-title>&#x02018;The world the horses made&#x00027;: a South African case study of writing animals into social history</article-title>. <source>Int. Rev. Soc. Hist.</source> <volume>55</volume>, <fpage>241</fpage>&#x02013;<lpage>263</lpage>. <pub-id pub-id-type="doi">10.1017/S0020859010000192</pub-id></citation>
</ref>
<ref id="B155">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Tanner</surname> <given-names>K.</given-names></name> <name><surname>Walch-Solimena</surname> <given-names>C.</given-names></name></person-group> (<year>2019</year>). <article-title>Ethics, societal opportunities and challenges of genome editing.</article-title> in <source>Discussion Paper Focusing on the Scientific Relevance of Genome Editing and on the Ethical, Legal and Societal Issues Potentially Involved</source>, ed <person-group person-group-type="editor"><name><surname>Charpentier</surname> <given-names>E.</given-names></name></person-group> (<publisher-loc>Munich</publisher-loc>: <publisher-name>Ethics Council of Max Planck Society</publisher-name>).<pub-id pub-id-type="pmid">31721233</pub-id></citation></ref>
<ref id="B156">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Terrisse</surname> <given-names>B. F.</given-names></name></person-group> (<year>2004</year>). <source>Las ovejas de San Juan: una visi&#x000F3;n hist&#x000F3;rico-antropol&#x000F3;gica de la introducci&#x000F3;n del ovino espa&#x000F1;ol y su repercusi&#x000F3;n en la sociedad rural andina</source>. <publisher-loc>Cusco</publisher-loc>: <publisher-name>Asociaci&#x000F3;n ARARIWA</publisher-name>.</citation>
</ref>
<ref id="B157">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Then</surname> <given-names>C.</given-names></name></person-group> (<year>2016</year>). <source>Synthetic Gene Technologies Applied in Plants and Animals Used for Food Production: Overview on Patent Applications on New Techniques for Genetic Engineering and Risks Associated with These Methods</source>. <publisher-loc>Munich</publisher-loc>: <publisher-name>Test Biotech</publisher-name>.</citation>
</ref>
<ref id="B158">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Theunissen</surname> <given-names>B.</given-names></name></person-group> (<year>2008</year>). <article-title>Breeding without mendelism: theory and practice of dairy cattle breeding in the Netherlands 1900&#x02013;1950</article-title>. <source>J. Hist. Biol.</source> <volume>41</volume>, <fpage>637</fpage>&#x02013;<lpage>676</lpage>. <pub-id pub-id-type="doi">10.1007/s10739-008-9153-0</pub-id><pub-id pub-id-type="pmid">19244844</pub-id></citation></ref>
<ref id="B159">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Theunissen</surname> <given-names>B.</given-names></name></person-group> (<year>2012</year>). <article-title>Breeding for nobility or for production? Cultures of dairy cattle breeding in the Netherlands, 1945&#x02013;1995</article-title>. <source>Isis</source> <volume>103</volume>, <fpage>278</fpage>&#x02013;<lpage>309</lpage>. <pub-id pub-id-type="doi">10.1086/666356</pub-id><pub-id pub-id-type="pmid">22908422</pub-id></citation></ref>
<ref id="B160">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Theunissen</surname> <given-names>B.</given-names></name></person-group> (<year>2020</year>). <source>Beauty or Statistics: Practice and Science in Dutch Livestock Breeding, 1900&#x02013;2000</source>. <publisher-loc>Toronto, ON</publisher-loc>: <publisher-name>University of Toronto Press</publisher-name>.</citation>
</ref>
<ref id="B161">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Thurtle</surname> <given-names>P.</given-names></name></person-group> (<year>2002</year>). <article-title>Harnessing heredity in gilded age america: middle class mores and industrial breeding in a cultural context</article-title>. <source>J. Hist. Biol.</source> <volume>35</volume>, <fpage>43</fpage>&#x02013;<lpage>78</lpage>. <pub-id pub-id-type="doi">10.1023/A:1014519404949</pub-id><pub-id pub-id-type="pmid">12068894</pub-id></citation></ref>
<ref id="B162">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Tucker</surname> <given-names>R. P.</given-names></name> <name><surname>Russell</surname> <given-names>E.</given-names></name></person-group> (eds.) (<year>2004</year>). <source>Natural Enemy, Natural Ally: Toward an Environmental History of War</source>. <publisher-loc>Corvallis</publisher-loc>: <publisher-name>Oregon State University Press</publisher-name>.</citation>
</ref>
<ref id="B163">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Tyrrell</surname> <given-names>B.</given-names></name></person-group> (<year>2015</year>). <article-title>Bred for the race: thoroughbred breeding and racial science in the United States, 1900&#x02013;1940</article-title>. <source>Hist. Stud. Natl. Sci.</source> <volume>45</volume>, <fpage>549</fpage>&#x02013;<lpage>576</lpage>. <pub-id pub-id-type="doi">10.1525/hsns.2015.45.4.549</pub-id></citation>
</ref>
<ref id="B164">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Tyrrell</surname> <given-names>B.</given-names></name></person-group> (<year>2018</year>). <article-title>Political animals</article-title>. <source>Hist. Stud. Natl. Sci.</source> <volume>48</volume>, <fpage>536</fpage>&#x02013;<lpage>547</lpage>. <pub-id pub-id-type="doi">10.1525/hsns.2018.48.4.536</pub-id></citation>
</ref>
<ref id="B165">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Tyrrell</surname> <given-names>B.</given-names></name></person-group> (<year>2019</year>). <source>Bred for the race: thoroughbred horses and the politics of pedigree, 1700-2000.</source> <publisher-name>(Dissertation thesis), University of California-Santa Barbara</publisher-name>.</citation>
</ref>
<ref id="B166">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Uribe Mendoza</surname> <given-names>B. I.</given-names></name></person-group> (<year>2015</year>). <article-title>La invenci&#x000F3;n de los animales: una historia de la veterinaria mexicana, siglo XIX</article-title>. <source>Hist&#x000F3;ria Ci&#x000EA;ncias Sa&#x000FA;de-Manguinhos</source> <volume>22</volume>, <fpage>1391</fpage>&#x02013;<lpage>1409</lpage>. <pub-id pub-id-type="doi">10.1590/S0104-59702015000400010</pub-id><pub-id pub-id-type="pmid">26625921</pub-id></citation></ref>
<ref id="B167">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Van Ausdal</surname> <given-names>S.</given-names></name></person-group> (<year>2009</year>). <article-title>Pasture, profit, and power: an environmental history of cattle ranching in Colombia, 1850&#x02013;1950</article-title>. <source>Geoforum</source> <volume>40</volume>, <fpage>707</fpage>&#x02013;<lpage>719</lpage>. <pub-id pub-id-type="doi">10.1016/j.geoforum.2008.09.012</pub-id></citation>
</ref>
<ref id="B168">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Van Ausdal</surname> <given-names>S.</given-names></name></person-group> (<year>2012</year>). <article-title>Productivity gains and the limits of tropical ranching in Colombia, 1850&#x02013;1950</article-title>. <source>Agric. Hist.</source> <volume>86</volume>, <fpage>1</fpage>&#x02013;<lpage>32</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2012.86.3.1</pub-id></citation>
</ref>
<ref id="B169">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Villanueva</surname> <given-names>G.</given-names></name></person-group> (<year>2017</year>). <source>A Transnational History of the Australian Animal Movement, 1970-2015</source>. <publisher-loc>New York, NY</publisher-loc>: <publisher-name>Springer</publisher-name>.</citation>
</ref>
<ref id="B170">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Wakild</surname> <given-names>E.</given-names></name></person-group> (<year>2021</year>). <article-title>Learning from the llama: on the broad contours of cultural contributions and geographic expansion</article-title>. <source>Hist. Ci&#x000EA;ncias Sa&#x000FA;de-Manguinhos</source> <volume>28</volume>, <fpage>141</fpage>&#x02013;<lpage>159</lpage>. <pub-id pub-id-type="doi">10.1590/s0104-59702021000500006</pub-id><pub-id pub-id-type="pmid">35137864</pub-id></citation></ref>
<ref id="B171">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Walker</surname> <given-names>B. L.</given-names></name></person-group> (<year>2013</year>). <article-title>Animals and the intimacy of history</article-title>. <source>Hist. Theory</source> <volume>52</volume>, <fpage>45</fpage>&#x02013;<lpage>67</lpage>. <pub-id pub-id-type="doi">10.1111/hith.10687</pub-id></citation>
</ref>
<ref id="B172">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Wang</surname> <given-names>J.</given-names></name></person-group> (<year>2019</year>). <source>Mad Dogs and Other New Yorkers: Rabies, Medicine, and Society in an American Metropolis, 1840&#x02013;1920</source>. <publisher-loc>Baltimore, MD</publisher-loc>: <publisher-name>Johns Hopkins University Press</publisher-name>.</citation>
</ref>
<ref id="B173">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Way</surname> <given-names>A. G.</given-names></name> <name><surname>Okie</surname> <given-names>W. T.</given-names></name> <name><surname>Funes-Monzote</surname> <given-names>R.</given-names></name> <name><surname>Nance</surname> <given-names>S.</given-names></name> <name><surname>Rosenberg</surname> <given-names>G. N.</given-names></name> <name><surname>Specht</surname> <given-names>J.</given-names></name> <etal/></person-group>. (<year>2020</year>). <article-title>Roundtable: animal history in a time of crisis</article-title>. <source>Agric. Hist.</source> <volume>94</volume>, <fpage>444</fpage>&#x02013;<lpage>484</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2020.094.3.444</pub-id></citation>
</ref>
<ref id="B174">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Wedekind</surname> <given-names>K.</given-names></name></person-group> (<year>2021</year>). <source>Impfe Und Herrsche. Veterin&#x000E4;rmedizinisches Wissen Und Herrschaft Im Kolonialen Namibia 1887&#x02013;1929</source>. <publisher-loc>G&#x000F6;ttingen</publisher-loc>: <publisher-name>Vandenhock and Ruprecht</publisher-name>.</citation>
</ref>
<ref id="B175">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Weisiger</surname> <given-names>M.</given-names></name></person-group> (<year>2011</year>). <source>Dreaming of Sheep in Navajo Country</source>. <publisher-loc>Seattle, WA</publisher-loc>: <publisher-name>University of Washington Press</publisher-name>.</citation>
</ref>
<ref id="B176">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>White</surname> <given-names>S.</given-names></name></person-group> (<year>2011</year>). <article-title>From globalized pig breeds to capitalist pigs: a study in animal cultures and evolutionary history</article-title>. <source>Environ. Hist.</source> <volume>16</volume>, <fpage>94</fpage>&#x02013;<lpage>120</lpage>. <pub-id pub-id-type="doi">10.1093/envhis/emq143</pub-id></citation>
</ref>
<ref id="B177">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Wilcox</surname> <given-names>R. W.</given-names></name></person-group> (<year>1992</year>). <article-title>Cattle and environment in the pantanal of Mato Grosso, Brazil, 1870-1970</article-title>. <source>Agric. Hist.</source> <volume>66</volume>, <fpage>232</fpage>&#x02013;<lpage>56</lpage>.</citation>
</ref>
<ref id="B178">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Wilcox</surname> <given-names>R. W.</given-names></name></person-group> (<year>1999</year>). <article-title>&#x02018;The law of the least effort&#x00027;: cattle ranching and the environment in the Savanna of Mato Grosso, Brazil, 1900-1980</article-title>. <source>Environ. Hist.</source> <volume>4</volume>, <fpage>338</fpage>&#x02013;<lpage>368</lpage>. <pub-id pub-id-type="doi">10.2307/3985131</pub-id></citation>
</ref>
<ref id="B179">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Wilcox</surname> <given-names>R. W.</given-names></name></person-group> (<year>2008</year>). <article-title>Ranching modernization in tropical Brazil: foreign investment and environment in Mato Grosso, 1900-1950</article-title>. <source>Agric. Hist.</source> <volume>82</volume>, <fpage>366</fpage>&#x02013;<lpage>92</lpage>. <pub-id pub-id-type="doi">10.3098/ah.2008.82.3.366</pub-id><pub-id pub-id-type="pmid">19260161</pub-id></citation></ref>
<ref id="B180">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Wilcox</surname> <given-names>R. W.</given-names></name></person-group> (<year>2017</year>). <source>Cattle in the Backlands: Mato Grosso and the Evolution of Ranching in the Brazilian Tropics</source>. <publisher-loc>Austin, TX</publisher-loc>: <publisher-name>University of Texas Press</publisher-name>.</citation>
</ref>
<ref id="B181">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Wiley</surname> <given-names>A. S.</given-names></name></person-group> (<year>2014</year>). <source>Cultures of Milk: The Biology and Meaning of Dairy Products in the United States and India</source>. <publisher-loc>Cambridge, MA</publisher-loc>: <publisher-name>Harvard University Press</publisher-name>.</citation>
</ref>
<ref id="B182">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Wilmot</surname> <given-names>S.</given-names></name></person-group> (<year>2007</year>). <article-title>From &#x02018;public service&#x00027; to artificial insemination: animal breeding science and reproductive research in early twentieth-century Britain</article-title>. <source>Stud. Hist. Phil. Sci. C Stud. Hist. Phil. Biol. Biomed. Sci.</source> <volume>38</volume>, <fpage>411</fpage>&#x02013;<lpage>441</lpage>. <pub-id pub-id-type="doi">10.1016/j.shpsc.2007.03.007</pub-id><pub-id pub-id-type="pmid">17543839</pub-id></citation></ref>
<ref id="B183">
<citation citation-type="book"><person-group person-group-type="editor"><name><surname>Wilson</surname> <given-names>E. O.</given-names></name></person-group> (ed.). (<year>1988</year>). <source>Biodiversity: National Forum on BioDiversity</source>. <publisher-loc>Washington, DC</publisher-loc>: <publisher-name>National Academy of Sciences</publisher-name>.</citation>
</ref>
<ref id="B184">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Wolf</surname> <given-names>C.</given-names></name> <name><surname>Ripple</surname> <given-names>W. J.</given-names></name></person-group> (<year>2018</year>). <article-title>Rewilding the world&#x00027;s large carnivores</article-title>. <source>R. Soc. Open Sci.</source> <volume>5</volume>, <fpage>172235</fpage>. <pub-id pub-id-type="doi">10.1098/rsos.172235</pub-id><pub-id pub-id-type="pmid">29657815</pub-id></citation></ref>
<ref id="B185">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Wood</surname> <given-names>R. J.</given-names></name></person-group> (<year>2007</year>). <article-title>The sheep breeders&#x00027; view of heredity before and after 1800</article-title>, in <source>Heredity Produced: At the Crossroads of Biology, Politics, and Culture, 1500-1870</source>, eds. <person-group person-group-type="editor"><name><surname>M&#x000FC;ller-Wille</surname> <given-names>S.</given-names></name> <name><surname>Rheinberger</surname> <given-names>H.-J.</given-names></name></person-group> (<publisher-loc>Cambridge, MA</publisher-loc>: <publisher-name>MIT Press</publisher-name>), <fpage>229</fpage>&#x02013;<lpage>49</lpage>.</citation>
</ref>
<ref id="B186">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Wood</surname> <given-names>R. J.</given-names></name> <name><surname>Orel</surname> <given-names>V.</given-names></name></person-group> (<year>2005</year>). <article-title>Scientific breeding in central Europe during the early nineteenth century: background to Mendel&#x00027;s later work</article-title>. <source>J. Hist. Biol.</source> <volume>38</volume>, <fpage>239</fpage>&#x02013;<lpage>72</lpage>. <pub-id pub-id-type="doi">10.1007/s10739-004-5427-3</pub-id></citation>
</ref>
<ref id="B187">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Woods</surname> <given-names>A.</given-names></name></person-group> (<year>2007</year>). <article-title>The farm as clinic: veterinary expertise and the transformation of dairy farming, 1930&#x02013;1950</article-title>. <source>Stud. Hist. Phil. Sci. C Stud. Hist. Phil. Biol. Biomed. Sci.</source> <volume>38</volume>, <fpage>462</fpage>&#x02013;<lpage>487</lpage>. <pub-id pub-id-type="doi">10.1016/j.shpsc.2007.03.009</pub-id><pub-id pub-id-type="pmid">17543841</pub-id></citation></ref>
<ref id="B188">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Woods</surname> <given-names>A.</given-names></name></person-group> (<year>2012</year>). <article-title>From cruelty to welfare: the emergence of farm animal welfare in Britain, 1964&#x02013;71</article-title>. <source>Endeavour</source> <volume>36</volume>, <fpage>14</fpage>&#x02013;<lpage>22</lpage>. <pub-id pub-id-type="doi">10.1016/j.endeavour.2011.10.003</pub-id><pub-id pub-id-type="pmid">22192762</pub-id></citation></ref>
<ref id="B189">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Woods</surname> <given-names>A.</given-names></name></person-group> (<year>2022</year>). <article-title>Writing the history of endemic viral disease: the case of bovine viral diarrhoea, c.1945&#x02013;1980</article-title>. <source>Soc. Hist. Med</source>. <pub-id pub-id-type="doi">10.1093/shm/hkab131</pub-id></citation>
</ref>
<ref id="B190">
<citation citation-type="web"><person-group person-group-type="author"><name><surname>Woods</surname> <given-names>R. J. H.</given-names></name></person-group> (<year>2012</year>). <article-title>Breed, culture, and economy: the New Zealand frozen meat trade, 1880&#x02013;1914</article-title>. <source>Agric. Hist. Rev.</source> <volume>60</volume>, <fpage>288</fpage>&#x02013;<lpage>308</lpage>. <ext-link ext-link-type="uri" xlink:href="https://www.bahs.org.uk/AgHRVOL.html?YEAR=2012&#x00026;MOD=this">https://www.bahs.org.uk/AgHRVOL.html?YEAR=2012&#x00026;MOD=this</ext-link></citation>
</ref>
<ref id="B191">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Woods</surname> <given-names>R. J. H.</given-names></name></person-group> (<year>2015</year>). <article-title>From colonial animal to imperial edible: building an empire of sheep in New Zealand, ca</article-title>. <source>1880-1900. Comp. Stud. South Asia Africa Middle East</source> <volume>35</volume>, <fpage>117</fpage>&#x02013;<lpage>136</lpage>. <pub-id pub-id-type="doi">10.1215/1089201X-2876140</pub-id></citation>
</ref>
<ref id="B192">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Woods</surname> <given-names>R. J. H.</given-names></name></person-group> (<year>2017a</year>). <article-title>Green mountain merinos: sheep breeding in nineteenth-century vermont</article-title>. <source>Vermont Hist.</source> <volume>85</volume>, <fpage>1</fpage>&#x02013;<lpage>19</lpage>.</citation>
</ref>
<ref id="B193">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Woods</surname> <given-names>R. J. H.</given-names></name></person-group> (<year>2017b</year>). <source>The Herds Shot Round the World: Native Breeds and the British Empire, 1800&#x02013;1900</source>. <publisher-loc>Chapel Hill, NC</publisher-loc>: <publisher-name>University of North Carolina Press</publisher-name>.</citation>
</ref>
<ref id="B194">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Woopen</surname> <given-names>C.</given-names></name> <name><surname>Nys</surname> <given-names>H.</given-names></name> <name><surname>O&#x00027; Sullivan</surname> <given-names>S.</given-names></name> <name><surname>Agius</surname> <given-names>E.</given-names></name> <name><surname>Cambon-Thomsen</surname> <given-names>A.</given-names></name> <name><surname>Sofia Carvalho</surname> <given-names>A.</given-names></name> <etal/></person-group>. (<year>2021</year>). <source>Ethics of Genome Editing: Opinion No. 32</source>. <publisher-loc>Brussels</publisher-loc>: <publisher-name>European Group on Ethics in Science and New Technologies</publisher-name>.<pub-id pub-id-type="pmid">33902573</pub-id></citation></ref>
<ref id="B195">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Yunes</surname> <given-names>M. C.</given-names></name> <name><surname>Os&#x000F3;rio-Santos</surname> <given-names>Z.</given-names></name> <name><surname>von Keyserlingk</surname> <given-names>M. A. G.</given-names></name> <name><surname>H&#x000F6;tzel</surname> <given-names>M. J.</given-names></name></person-group> (<year>2021</year>). <article-title>Gene editing for improved animal welfare and production traits in cattle: will this technology be embraced or rejected by the public?</article-title> <source>Sustainability</source> <volume>13</volume>, <fpage>4966</fpage>. <pub-id pub-id-type="doi">10.3390/su13094966</pub-id></citation>
</ref>
<ref id="B196">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Zarrilli</surname> <given-names>A. G.</given-names></name></person-group> (<year>2001</year>). <article-title>Capitalism, ecology, and agrarian expansion in the Pampean region, 1890-1950</article-title>. <source>Environ. Hist.</source> <volume>6</volume>, <fpage>561</fpage>&#x02013;<lpage>583</lpage>. <pub-id pub-id-type="doi">10.2307/3985255</pub-id><pub-id pub-id-type="pmid">19610229</pub-id></citation></ref>
<ref id="B197">
<citation citation-type="book"><person-group person-group-type="author"><name><surname>Zelinger</surname> <given-names>A.</given-names></name></person-group> (<year>2018</year>). <source>Menschen Und Haustiere Im Deutschen Kaiserreich. Eine Beziehungsgeschichte.</source> <publisher-loc>Bielefeld</publisher-loc>: <publisher-name>Transcript</publisher-name>.</citation>
</ref>
<ref id="B198">
<citation citation-type="journal"><person-group person-group-type="author"><name><surname>Zelinger</surname> <given-names>A.</given-names></name></person-group> (<year>2019</year>). <article-title>Race and animal-breeding: a hybridized historiography</article-title>. <source>Hist. Theory</source> <volume>58</volume>, <fpage>360</fpage>&#x02013;<lpage>384</lpage>. <pub-id pub-id-type="doi">10.1111/hith.12122</pub-id></citation>
</ref>
</ref-list>
</back>
</article>