SOLATION AND IDENTIFICATION OF ECONOMICALLY IMPORTANT BACTERIA FROM THE BROILER FARMS AT DINAJPUR DISTRICT OF BANGLADESH WITH THEIR ANTIBIOTIC RESISTANCE

Abstract

The present research work was carried out for the isolation and identification of economically important bacteria from the broiler farms at Dinajpur district of Bangladesh with their antibiotic resistance during the period from January 2017 to June 2017. A total 100 samples (liver, 7 lungs, esophagus, duodenum and tracheal swab) were collected from broiler farms (n=10) in Dinajpur district. The samples were shifted aseptically to the Bacteriology laboratory of the department of Microbiology, Hajee Mohammed Danesh Science and Technology University following standard bacteriological techniques. Out of 100 samples Escherichia coli was isolated from 50 samples. Similarly, Salmonella spp., Staphylococcus spp., and Pasteurella spp. were isolated from 28, 20, and 8 samples, respectively. Antibiogram studies revealed that Ciprofloxacin was highly sensitive against all the isolated bacteria. Escherichia coli resistant to ampicillin 100 and amoxicillin 100. Salmonella spp., resistance to Amoxycilin 89, Erythromycin 89. Pasteurella spp. resistance to amoxicillin 88. Diversified bacterial species are prevalent in broiler in Dinajpur district However, E. coli and Salmonella spp. infection might make the bird vulnerable for easy access of infection. Proper vaccination and use of selective antibiotics are crucial in protecting broilers from these pathogens.