Antibiotic resistance determination in Escherichia coli isolated from poultry samples enffected Colibacillosis disease from around Kermanshah farms

Poultry colibacillosis is one of the most important diseases which is caused by Escherichia coli and cause great economic Damages to chicken farm industry. According to high spread of antibiotic resistance in this bacterium and create resistance strain of Escherichia coli, this study conducted to detect antibiotic resistance profile in Escherichia coli isolated from Colibacillosis in chicken carcasses transferred to Veterinary Diagnosis laboratories in Kermanshah, Iran. Antibiotic resistance profile was studied in 500 isolated of Escherichia coli in spring and summer of 2014 using simple disk diffusion method. The results showed that the first quarter of year had mostly Escherichia coli resistance to Chloretetracycline, Erythromycin, Oxytertracyclin and Colistin and in summer in addition of this four antibiotics, Danfloxacin had high rate of resistance antibiotic. According to the increase spread of antibiotic resistance, it is necessary to prevent of illness entrance to the poultry with proper nutrition principles and hygiene. Timely vaccination can prevent greatly of chicken farm with infectious diseases and follow that, the rate of antibiotic using is low and we can development into products without antibiotics.