Pathogenicity of Salmonella typhimurium and S enteritidis isolated from domestic animals in Gyeongbuk province

경북지역 가축에서 분리된 Salmonella typhimurium과 S enteritidis의 병원성 시험

  • Kim, Sang-Yun (Northern Branch, Gyeongbuk Veterinary Service Laboratory) ;
  • Lee, Hee-Moo (College of Natural Science, Andong National University) ;
  • Kim, Sin (Northern Branch, Gyeongbuk Veterinary Service Laboratory) ;
  • Hong, Hyon-Pyo (Northern Branch, Gyeongbuk Veterinary Service Laboratory) ;
  • Kwon, Heon-Il (Northern Branch, Gyeongbuk Veterinary Service Laboratory)
  • 김상윤 (경상북도가축위생시험소 북부지소) ;
  • 이희무 (안동대학교 자연과학대학) ;
  • 김신 (경상북도가축위생시험소 북부지소) ;
  • 홍현표 (경상북도가축위생시험소 북부지소) ;
  • 권헌일 (경상북도가축위생시험소 북부지소)
  • Published : 2001.04.01

Abstract

The result of studying the pathogenicity of Salmonella typhimurium and S enteritidis isolated from domestic animals in Gyeongbuk province were summarized as follows. In Congo-red binding test, S typhimurium had much more rough types than S enteritidis. In colicin production test, 4 strains of S typhimurium were positive but all of S enteritidis were negative. In hemolysin production test, all of S typhimurium and S enteritidis were negative. In Guinea pig serum resistant test, all of S typhimurium and S enteritidis were positive. As a result of pathogenicity test to mice, 54.4% of mice were died. Therefore, S typhimurium and S enteritidis were considered as highly pathogenic. S typhimurium DT104 and S enteritidis PT4 were more pathogenic to mice than other phage types of same serovar. S typhimurium and S enteritidis were considered not so pathogenic for 6-day-old chickens. The recovery rates of Salmonella stains from mice and chickens inoculated were 96.8%, and 54%, respectively. In chickens, proportional to the time from 2 weeks after challenge inoculation, the recovery rates were noticeably decreased.

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