Antibiogram profiles of Escherichia coli, salmonella and listeria species isolated along the processing line of sale of frozen poultry foods

Abstract

In this study, thirteen bacteria strains isolated along the processing line of sale of frozen poultry foods in retail outlets of Bodija market, Ibadan, Nigeria, were subjected to antibiogram assay using the Bauer-Kirby disc diffusion method. E. coli and Salmonella sp. displayed almost similar resistant patterns (50%) and were totally resistant to tetracycline, augmentin, cotrimoxazole and amoxicillin. The E. coli strains were at best moderately sensitive to ofloxacin while Salmonella sp. were moderately sensitive to gentamicin and ofloxacin. The resistance level for the Listeria spp. was 62% while it was 70% with the pathogenic isolate. All the Listeria sp. were completely resistant (0.00±0.00 mm) to six of the antibiotics used: cephalexin, cotrimoxazole, ampicillin, clindamycin and augmentin. The best reaction seen was a weakly sensitive level demonstrated by weighing scale Listeria spp. with ciprofloxacin (13.00±0.42 mm). Since these bacteria species were sensitive to the quinolones, so their use is being encouraged. © 2012 Academic Journals Inc.