돼지분변에서 분리한 살모넬라속균의 생물혈청학적 특성 및 항균제 감수성

Bioserological characteristics and antimicrobial susceptibility of salmonella species isolated from swine feces

In order to investigate the epidemic characteristics of Salmonella species, it was examined the isolation rate, subspecies, serotype, resistance rate, multiple resistance patterns, transferred rate, multiple transferred patterns in Samonella species isolated from the feces of the slaughtered swine. We isolated 22 Samonella species(1.5%) from 1, 373 samples. They were all subspecies I and identified to Salmonella derby 7 isolates(31.8%), Sal. muenchen 6 isolates(27.3%), Sal. stanley 5(22.7%), Sal. heidelberg 2(9.1%), Sal. typhimurium 1(4.6%) and Sal. schwarengrund 1(4.6%). Of 22 salmonellas, 13 isolates(54.2%) were resistant to 12 antibiotics. The resistant rate against ampicillin was 41.7%, that of tetracyline 37.5%, that of carbenicillin, neomycin and streptomycin 29.2%, respectively, that of kanamycin 25%, chloramphenicol 8.3%, neomycin and streptomycin 4.2%, respectively, but no resistant to amikacin, nalidixic acid and tobramycin. Most of multiple resistant pattern were 4 isolates (30.8%) of Am-Cb-Km-Sm-Te. Of 13 resistants, 9 isolates(69.2%) were transferred the resistance of antibiotics to the recipient strain. The transferrated rate of resistance to ampicillin was 50%, that of chloramphenicol 100%, that of carbenicillin and neomycin was 14.3%, streptomycin 16.7% and tetracycline 11.1%, respectively, but not transferred to gentamicin and kanamycin