Characterisation of Antimicrobial Resistance in Special‐Fed Veal Production Environments

ABSTRACT Introduction Antimicrobial resistance (AMR) is one of the leading public health threats globally. AMR genes can be transferred between bacteria through lateral gene transfer, and AMR organisms can spread through environments by contaminated water, agriculture and animals. Thus, widespread e...

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Bibliographic Details
Published in:Zoonoses and public health 2025-02, Vol.72 (1), p.75-83
Main Authors: Dunmyre, Alexander, Vinayamohan, Poonam, Locke, Samantha R., Cheng, Ting‐Yu, Schaffner, Victoria, Habing, Greg
Format: Article
Language:English
Subjects:
Abattoirs
Animal Husbandry
Animals
Anti-Bacterial Agents - pharmacology
Antimicrobial agents
Antimicrobial resistance
Bacteria
Barns
Calves
Cattle
Cattle production
Cephalosporins
Coliforms
Dairy farms
Drug resistance
Drug Resistance, Bacterial
Drug Resistance, Multiple, Bacterial
E coli
environment
Environmental impact
Escherichia coli
Escherichia coli - drug effects
Escherichia coli Infections - epidemiology
Escherichia coli Infections - microbiology
Escherichia coli Infections - veterinary
Farm buildings
Farms
Food contamination
Gene transfer
Genes
Harbor facilities
Harbors
Harbours
Health risks
Livestock
Multidrug resistance
Original
Public health
Slaughtering
Trailers
Veal
veal production
Water pollution
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Summary:ABSTRACT Introduction Antimicrobial resistance (AMR) is one of the leading public health threats globally. AMR genes can be transferred between bacteria through lateral gene transfer, and AMR organisms can spread through environments by contaminated water, agriculture and animals. Thus, widespread environmental dissemination of bacteria and lateral gene transfer facilitate AMR transmission pathways. Farm environments in dairy and calf production are known to harbour AMR bacteria that pose a risk for food contamination and to workers in direct or indirect contact with animals. Escherichia coli is present in farm environments and is known to participate in lateral gene transfer, providing a good marker of resistance genes in each environment. Methods In this study, E. coli from nine cohorts of calves was isolated at different time points from nine barns, nine trailers and one slaughterhouse environment in a single special‐fed veal calf production facility. The antimicrobial susceptibility to 15 antimicrobials, classified as highly or critically important by the World Health Organization, was characterised for E. coli isolates using Kirby–Bauer disk diffusion. Results The highest proportion of isolates showing multidrug resistance was present in barn environments (51.7%), where calves were housed from their arrival at
ISSN:1863-1959
1863-2378
1863-2378
DOI:10.1111/zph.13186