Anti Microbial Resistance Profile of E. coli isolates From Tropical Free Range Chickens



Results

Anti-microbial Resistance Profile of E. coli Isolates from Local Chicken:

The overall mean percentage resistance figures of E. coli strains isolated from local
fowls is shown in Figure 1. Among these, ampicillin and co-trimoxazole were resisted
100 and 78.9% of the time respectively while ciprofloxacin, gentamicin and
norfloxacin recorded 0.0, 5.3 and 5.3% resistance respectively.

Figure 1: Anti-microbial resistance frequencies of E. coli isolates from local fowls reared at
different rural locations. N, nitrofurantoin; Cf, cefuroxime; Nb, norfloxacin; Co, cotrimoxazole;
Gn, gentamicin; Te, tetracycline; Cp, ciprofloxacin; Na, nalidixic acid; Ch, chloramphenicol; Am,
ampicillin.

Anti-microbial Resistance Profile of E. coli Isolates from Free-Range Cockerels: Among
the free-range-cockerels (Figure 2), E. coli isolates recorded 100% resistance against
norfloxacin, cotrimoxazole and ampicillin, while for nitrofurantoin it was 83.3%
resistance. Gentamicin, tetracycline and ciprofloxacin on the other hand recorded
zero resistance.

OJHAS Vol 4 Issue 3, 2005-3-3: Original Article. Antimicrobial resistance profile of E.coli isolates from tropical free range chickens. www.ojhas.org/issue15/2005-3-3.htm



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