Antimicrobial susceptibility of escherichia coli isolated from chicken meat

L. Kalaiselvi; P. Karthick Venkatesh; S. Ramesh; K.V. Venkateswaran

doi:10.56093/ijvasr.v46i5.139242

Authors

L. Kalaiselvi Department of Veterinary Pharmacology and Toxicology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University,Chennai-600 007
P. Karthick Venkatesh Department of Veterinary Pharmacology and Toxicology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai-600 007
S. Ramesh Department of Veterinary Pharmacology and Toxicology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai-600 007
K.V. Venkateswaran Department of Veterinary Pharmacology and Toxicology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai - 600 007

https://doi.org/10.56093/ijvasr.v46i5.139242

Keywords:

Escherichia coli, Poultry, Antibacterial activity, Zone of Inhibition, Resistance

Abstract

The study was conducted to evaluate the antimicrobial resistance in Escherichia coli strains isolated from chicken meat. One hundred and five chicken meat samples were collected from retail broiler outlets in Chennai, Tamil Nadu, India and processed for bacteria isolation. Thirty one E. coli strains were isolated and the isolated strains were tested for antimicrobial susceptibility. All isolates showed resistance to two or more antimicrobials. The isolates exhibited resistance to ampicillin (93.55%), ampicillin-sulbactam (67.74%), amoxicillin-clavulanate (100%), erythromycin (77.42%), tetracyclines (61.29%) and cotrimaxazole (64.52%). Multidrug resistance was observed in 29 (93.55%) isolates. The results highlight the prevalence of multidrug resistance E. coli strains which is a serious threat to public health. Hence, the surveillance system should be strengthened and antimicrobial drug usage in the poultry industry should be optimized to prevent emergence and spread of antimicrobial resistance.

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