ORIGINAL RESEARCH article
Front. Vet. Sci.
Sec. One Health
Volume 12 - 2025 | doi: 10.3389/fvets.2025.1584940
This article is part of the Research TopicAntimicrobial Resistance: Causes, Mechanisms and Mitigation Strategies for Gut DysbiosisView all 5 articles
Retrospective Analysis of Antimicrobial Resistance of Salmonella spp. Isolated from Livestock and its Environmental in Thailand
Provisionally accepted
- 1Department of Pathology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
- 2Kamphaeng Saen Diagnostic Center, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen, Thailand
- 3Kasetsart University, Bangkok, Thailand
- 4Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Nakhon Pathom, Thailand
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A retrospective study of non-typhoidal Salmonella isolation from poultry and pig farms in Nakhon Pathom and Suphan Buri provinces which was conducted during the yearsfrom 2008 to -2015. A total of 636 Salmonella isolates wasere collected from livestock and environmental samples. The isolates included 1.42% S. Typhimurium, 4.40% S. Enteritidis, and 1.26% S.Virchow; however, neither S. Infantis nor S. Hadar were found. All Salmonella isolates wasere tested for antimicrobial susceptibility and minimum inhibitory concentrations (CLSI Vet03-S2 2014, NCCLS standard). The top three drug resistances were to cephalexin, gentamicin, and amoxicillin. S. Typhimurium showed resistance rates of 100%, 100%, and 22.22% to these antibiotics, respectively; S. Enteritidis showed resistance rates of 100%, 100%, and 90.91%; and S. Virchow revealed resistance at the rates of 50%, 50%, and 12.50%, respectively. The conserved segment integrase 1 and gene cassette were found by polymerase chain reaction (PCR) in all serotypes. The resistance gene of aadb, IntI1, CmlA,
Keywords: Ssalmonella, antimicrobial resistance, multidrug resistance, environment, Livestock
Received: 28 Feb 2025; Accepted: 28 Apr 2025.
Copyright: © 2025 Lertwatcharasaeakul, Phatthanakunanan and Tulayakul. 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) or licensor 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.
* Correspondence: Phitsanu Tulayakul, Kasetsart University, Bangkok, Thailand
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