The identification and antibiotic sensibility of E. coli O157:H7 in broiler chickens

The Identification and Antibiotic Sensibility of E. coli O157:H7 in Broiler ChickensIn this study, 500 cloacal swaps have been picked up from broiler chickens at subconstructor houses of ?Abalıoğlu Feed, Soybean and Textile? company at İzmir, Aydın, Manisa, Denizli and Usak in order to identification of E. coli O157:H7.Escherichia coli O157:H7 serotype were identified from 32 pieces (6.40%) of the total 500 cloacal swaps. In addition, 128 (25.60%) other E. coli strains, 75 (15.00%) Klebsiella sp., 193 (38.60%) Proteus sp., 38 (7.60%) Pseudomonas sp. are also identified, but, 34 (6.80%) of the samples were not have any bacterial growth.Percentage of the isolated E. coli O157:H7 from the total samples taken from the cities are as : Aydın 108/13 (12.04%), Izmir 140/9 (6.43%), Usak 36/2 (5.55%), Manisa 180/7 (3.88%) and Denizli 36/1 (2.77%) .Antimicrobial sensitivity test results with E. coli O157:H7 isolates resulted that the isolates are sensitive 100.00% to Polymyxin B, 75.00% to Cefotaxime, 59.38% to Norfloxacin; semi sensitive 37.50% to Kanamycin; resistant 100.00% to Ampicillin, 100.00% to Cephalothin, 87.50% to Chloramphenicol, 81.25% to Sulphamethoxazole-Trimethoprim, 81.25% to Erithromycine and 62.50% to Amoxycillin-Clavulanic acid.Key Words: E. coli O157:H7, broiler, isolation, identification, antibiotics