Abstract
The prevalence of multiple antibiotic resistant bacteria in the waste dumpsite of ten poultry farms in Southwestern Nigeria was investigated. The susceptibility of 195 organisms isolated from the study sites to eight antimicrobial agents were tested using disc diffusion method and the minimum inhibitory concentration of cloxacillin and amoxicillin determined by the agar dilution method. Resistance to the test antibiotics ranged between 0% for gentamicin and 100% for tetracycline and ampicillin among the organisms. Overall, 70 and 90% of the isolates from Okuku, 65.2 and 95.6% from Ogbomoso, and 46.1 and 84.6% from Oyo had MIC above 512 μg/ml for amoxicillin and cloxacillin. Generally, drugs used in high volumes in the studied farms are the least active against the bacterial isolates. Results of this study shows that poultry waste can serve as environmental reservoirs of multiple antibiotic resistant bacteria and their indiscriminate dumping in the environment can expose surrounding human populations to health risks from drug resistant zoonotic pathogens.
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Adelowo, O.O., Ojo, F.A. & Fagade, O.E. Prevalence of multiple antibiotic resistance among bacterial isolates from selected poultry waste dumps in Southwestern Nigeria. World J Microbiol Biotechnol 25, 713–719 (2009). https://doi.org/10.1007/s11274-008-9940-y
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DOI: https://doi.org/10.1007/s11274-008-9940-y