Figure 2: Anti-microbial resistance frequencies of E. coli from free range cockerel. 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 Old Layers: E. coli isolates from the
old layers, (Figure 3), recorded 100% resistance against nitrofurantoin,
cotrimoxazole, tetracycline, chloramphenicol and ampicillin, while 80% resistance
was recorded against nalidixic acid. Zero resistance was on the other hand recorded
against gentamicin.
Figure 3: Anti-microbial resistance frequencies of E. coli from old layers. N, nitrofurantoin; Cf,
cefuroxime; Nb, norfloxacin; Co, cotrimoxazole; Gn, gentamicin; Te, tetracycline; Cp,
ciprofloxacin; Na, nalidixic acid; Ch, chloramphenicol; Am, ampicillin.
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