Anlmal,Plant and Flsherles Quarantine and Inspection Agency

This study was conducted to investigate the antimicrobial susceptibility of Salmonella spp. isolated from carcass meats in slaughterhouse in Korea from March 2003 to December 2004. A total of 838 carcasses at 94 slaughters, 226 samples from cattle at 29 slaughters, 344 samples from pigs at 35 slaughters, and 268 samples from chicken at 30 slaughters, were collected for the monitoring of antimicrobial resistance. One hundred and six strains of Salmonella spp. were isolated from 838 carcasses samples of livestocks. The serotype of Salmonella isolates were Enteritis (39 strains), Typhimurium (10 strains), B group (15 strains), C1 group (13 strains), C2 group (24 strains), D1 group (4 strains) and E1 groups (1 strain). Antimicrobial susceptibility test was carried out by agar disc diffusion method with 17 antimicrobials. Sixty-four (60.4%) of these Salmonella isolates were resistant to at least one antimicrobial agent. The Salmonella isolates were high resistant to streptomycin (S; 60%) and tetracycline (TE; 57.5%), and resistance levels to ampicillin, gentamicin, amikacin, amoxicillin/clavulanic acid, cephalothin, chloramphenicol and imipenem ranged from 0.9% to 10.4%. All of the isolates were sensitive to cefazolin, cefoxitin, cefotaxime, cefepime, ciprofloxacin, enrofloxacin, norfloxacin, and trimethoprim/sulfamethoxazole. Ten kinds of resistance patterns of Salmonella isolates were detected, and the resistance pattern was mostly S TE type (57.8%). The Salmonella enterica serotype Typhimurium DT104 that was regarded as a serious problem in public health were not found in this study. In conclusion, the data obtained from this surveillance could be useful to prevent and control of antimicrobial resistance in animals. (Kor J Vet Publ Hlth 31(1), 51-56, 2007)