Antimicrobial Sensitivity of Avian Pathogenic Escherichia coli (APEC) Isolated from Chickens During 2007-2010

Abstract

Fifty isolates of Avian pathogenic Escherichia coli (APEC) isolated from chickens during 2007-2010 were invitro tested to 21 antimicrobial discs. The highest sensitivity of APEC was to fosfomycin (84%). The second sensitivityagainst enrofloxacin and norfloxacin was 70%. The antimicrobial sensitivity to colistin, gentamicin, kanamycin,sulfametroxazole+trimethoprim, amoxicillin+clavulanic acid and doxycycline were 66, 64, 62, 60, 58 and 52%,respectively. The antimicrobial resistance of APEC to tylosin, tilmicosin, tiamulin, lincomycin, amoxicillin, ampicillin,erythromycin, cephalexin and neomycin were 100, 100, 100, 94, 86, 82, 80, 72 and 62%, respectively.