EVALUATION OF RATIONAL USE OF ANTIBIOTIC IN POULTRY INDUSTRY USING ESCHERICHIA COLI ANTIBIOGRAM AS INDEX OF RESISTANCE IN ZARIA, NORTHWESTERN, NIGERIA

Rufus Precious ENENYA, O. S. Olonitola, M. B. Tijjani, M. Bello

Abstract


To control and prevent poultry diseases, breeders are known to administer subtherapeutic and therapeutic levels of antimicrobial agents to chickens via feed and water, which improves feed efficiency and accelerates weight gain but provides a selective pressure for bacterial antimicrobial resistance. This study was aimed at evaluating the rational use of antibiotic in poultry industry using Escherichia coli antibiogram as index of bacteria resistance in Zaria, North Western, Nigeria. A total of 382 Samples of fresh poultry droppings were collected between July 2018 and March 2019 from commercial chicken farms and plated on Eosine Methyline Blue agar. Escherichia coli was isolated and identified by standard microbiological methods and confirmed using MicrogenTM kits. Antibiotic susceptibility testing was carried out using Kirby-Bauer disk diffusion technique and 14 antibiotic discs. The prevalence of Escherichia coli in poultry droppings was 83.76%. Among the strains of Escherichia coli isolates obtained, 91.30% were resistant to Ampicillin and Tetracycline each, while 69.57% were resistant to trimethroprim-sulphamethoxazol but no resistance to Cefoxitin (0.00%). Furthermore, all the Escherichia coli (100%) had multiple antibiotic resistance indices ≥0.21 in this study. In conclusion, use of antibiotic in poultry has led to emergence of antibiotic resistant bacteria in Nigeria.

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References


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