Editorial: Interdisciplinary approaches to antimicrobial use in livestock farming

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Editorial on the Research Topic Interdisciplinary approaches to antimicrobial use in livestock farming
When we first set out to put together a collection that reflected interdisciplinary scholarship on antimicrobial resistance (AMR) in livestock agriculture settings, we wanted to weave together two research threads that seemed to have been running in parallel. The first one, mostly built by veterinarians experimenting with qualitative methods, looks to understand the human contribution to a problem of evolutionary genetics and public health. The second, developed mostly by social scientists, explores the ways in which the AMR problem is framed and what its governance approaches reveal about our ideas of nature, politics, and health. Both strands have continued to grow.
Veterinarians have continued to explore stakeholder perceptions and practises and assess governance landscapes and interventions. Landfried et al. (1) for example, expanded the geographical scope of case studies by looking at veterinarians' prescriptions decisions in Missouri and added goats to the list of species-specific articles. Their study problematises the causal relationship between prescriptions and residue levels as the latter are higher than in other U.S. states even though antibiotics are prescribed in <50% of veterinary visits in Missouri. Meanwhile, Bennani et al. (2) examined the intricacy of UK surveillance systems and revealed inconsistencies in the integration of its 30 key organisations, processes, data sources and working relationships with six international networks.
On the other hand, sociologists Cañada et al. (3) also looked at governance approaches but used ethics as a lens. Their study denounced the intrinsically anthropocentric nature of the public health framing of AMR and argued for alternative ethics that are not founded on human exceptionalism. This interest in how and with what consequences AMR has been framed is recurrent. Hughes et al. (4) for example, take issue with the targets-approach of public and private regulators along the food supply chain and its governing bodies. Similar to Cañada et al., Chandler (5) identifies how the emphasis on individual behaviour change is inconsistent with the connectedness implicit in the One Health approach with which AMR is persistently presented. Chandler shifts the focus from those who prescribe or use Escobar .
antibiotics to antibiotics themselves as materials that harness interspecies relations and make them governable and examines their roles in weaving together the fabric of modern medicine and health systems, and invites us to take seriously the problems that AMR has made visible: our dependence on antibiotics, the risks, and demands of commercial farming and the conditions of increased density in populations, be they animal or human [see also Jamie and Sharples (6)]. This call to understand AMR as a problem that emerges within structural processes of neoliberalisation and the injustices of the global economic system is also made by Dutescu (7) who lays the blame squarely on neoliberalism not only for the emergence of AMR but also for the ineffective behavioural interventions favoured by national and international approaches. Likewise Doron and Broom (8), warn of us of the disproportionate impact of AMR that will deepen global inequalities. Helliwell et al. (9) offer an additional set of warnings, this time related to how the governance of agricultural AMR in the UK places the responsibilities for both the problem and its solution on farmers and veterinarians yet limits their agency when no other elements of the context in which they operate are changed because its concern with animal health is about productivity rather than actual health and welfare. There are four main ideas that are common to both research strands. First, AMR is a complex problem. Second, dealing with it requires more than behavioural and regulatory approaches because, third, on-farm decisions are not only contingent on context but are also deeply entangled with global and national food systems, agricultural support structures, and veterinary medicine regimes. Thus, and fourth, dealing with AMR calls for a critical and interdisciplinary examination of these systems, structures, and regimes and the inequalities embedded within them. These themes also run through the articles in this Research Topic.
Adam et al. identify external factors that affect transitions to different practices, including the role of slaughterers and distributors as well as that of tangible and intangible objects and materials such as feed and chick quality, vaccines, and alternative medicines. Complexity, they argue, is not limited to the decision to change but extends to the long-term process of transition. Baudoin et al. echo this conclusion and add that success will not only be a matter of long-term support but also of working with temporal and spatial contexts. This Research Topic covers multiple species and locations with a variety of theoretical and methodological approaches that mirror the diverse disciplines and fields the authors represent and the complexity of the problem itself. To deal with this complexity, all the authors agree, inter-and multidisciplinary approaches are essential.

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