Prevalence of Brachyspira hyodysenteriae on selected swine farms in Gyeongbuk province by PCR

  • Suh, Dong-Kyun (Daegu Metropolitan Health & Environment Institute) ;
  • Do, Yun-Jeong (College of Veterinary Medicine, Kyungpook National University) ;
  • Ha, Jong-Su (College of Veterinary Medicine, Kyungpook National University) ;
  • Lee, Kyeong-Hyeon (College of Veterinary Medicine, Kyungpook National University) ;
  • Cho, Yoo-Jung (Daegu Metropolitan Health & Environment Institute) ;
  • Song, Dong-Jun (Daegu Metropolitan Health & Environment Institute) ;
  • Lee, Chun-Sik (Daegu Metropolitan Health & Environment Institute) ;
  • Bae, Young-Chan (Daegu Metropolitan Health & Environment Institute) ;
  • Park, Won-Pil (College of Veterinary Medicine, Kyungpook National University) ;
  • Lee, Keun-Woo (Daegu Metropolitan Health & Environment Institute) ;
  • Song, Jae-Chan (College of Veterinary Medicine, Kyungpook National University)
  • Published : 2001.12.01

Abstract

The purpose of this study is to determine the prevalence of Brachyspira hyodysenteriae from 43 swine farms with diarrhea or a history of diarrhea in Gyeongbuk province by PCR. The overall herd prevalence of B hyodysenteriae was 37.2%(16/43), and the average prevalence of B hyodysenteriae among all sampled pigs was 10.8%(50/462). Positive herds for B hyodysenteriae were distributed throughout Gyeongbuk province from 14.3~50%. Herd size had a effect on the frequency of B hyodysenteriae. The frequency of B hyodysenteriae in herds with less than 1,000 pigs was 47.4%, that of herds between 1,001 and 2,000 pigs was 41.7%. Also, the frequency of B hyodysenteriae in herds with more than 2,000 pigs was 16.7%.

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