Research Journal for Veterinary Practitioners

Short Communication
Res. J. Vet. Pract. 5(1): 12-14
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Ameen-Ur-Rashid, Said Sajjad Ali Shah*, Mirza Ali Khan, Rafiullah, Anwar ali, Maleeha Anwar

Veterinary Research Institute, Peshawar, Khyber Pakhtunkhwa. Pakistan.

Abstract | Escherichia coli is a Gram-negative facultative anaerobic bacteria which cause serious threat to poultry industry by causing high morbidity and mortality. The aim of the present study was to determine the prevalence of E. coli in recent years (2014-2016) and antibiogram profile of E. coli isolates. Liver samples from different poultry farms were collected and processed for the confirmation of E. coli colonies. Antibiogram profile was also estimated for E. coli isolates by placing antibiotics disc and measuring zone of inhibition. Overall prevalence of E. coli was recorded as 35.1% while year wise prevalence was 29.2, 29.88 and 41.05% for year 2014, 2015 and 2016, respectively. Antibiogram profile of E. coli isolates showed that Gentamicin was highly sensitive in year 2014 and 2015 while ampicillin was least sensitive in these years while Colistin with 60% sensitivity was recorded highly sensitive in 2016 and Oxytetracyclin was highly resistant. Antibiogram profile of E. coli isolates showed that resistance developed to some antibacterial with passage of time while sensitivity of some antibacterial increased. Development of resistance might be due to the vigorous use of these antibiotics for control of diseases in poultry and also due to use of antibacterials as feed additives. Due to growing resistance to antibiotics it is highly recommended to decrease the unethical use of antibiotics to minimize the development of resistance strain of microbes in future.

Keywords | Escherichia coli, Poultry, Prevalence, Antibiogram, Zone of inhibition, Resistance