제주지역 돼지 폐렴병소에서 분리한 actinobacillus pleuropneumoniae의 생물화학적 특성 및 혈청형에 관한 연구

Studies on biochemical characteristics and serotypes of actinobacillus pleuropneumoniae isolated frompneumonic lungs of swine in Che-ju

The present study was conducted to investigate the incidence of Actinobacillus pleuropneumoniae infection in the pneumonic lungs of slaughter pigs from July 1996 to June 1997 and to examine the biochemical and cultural properities, the antimicrobial susceptibility and serotypes of the isolates. The biochemical and cultural properties of A. pleuropneumoniae isolated from the pneumonic lungs of swine were identical to those of the reference strains used. Twenty-four(8.1%) strains of A. pleuropneumoniae were isolated from 298 pneumonic lungs of slaughter pigs. The majority of isolates showed high susceptibility to ampicillin, cephalotin, oxacillin and moderately susceptibility to cefazolin, gentamicin, kanamycin, chloramphenicol, although the majority of them were resistant ot neomycin, streptomycin, erythromycin, lincomycin, and sulfamethoxazole. Of the 24 A. pleuropneumoniae isolates, 12(50.0%) were serotype 5, 11(45.8%) were serotype 2 and 1(4.2%) was serotpye 7.