Influence of housing system on antimicrobial resistance and population structure of extended-spectrum beta-lactamase-producing Escherichia coli in South Korean layer farms.

Abstract excerpt

Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli are widespread in poultry production, posing serious public health risks. However, evidence from commercial layer farms-particularly environmental reservoirs-and direct comparisons between cage and floor housing systems remain limited. In this study, we aimed to investigate the prevalence, antimicrobial resistance (AMR) profiles, β-lactamase...

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