Korean Journal of Veterinary Service (한국동물위생학회지)

The Korean Society of Veterinary Service (한국동물위생학회)
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Study on gross finding of lung lesions and causative pathogens of porcine respiratory disease complex from slaughtered pigs in Incheon

인천지역 도축돈에서 돼지호흡기질병복합감염증의 육안적 폐병변과 원인체에 관한 연구

  • Lee, Chang-Hee (College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University) ;
  • Hwang, Weon-Moo (Incheon Metropolitan City Institute of Health & Environment) ;
  • Lee, Jung-Goo (Incheon Metropolitan City Institute of Health & Environment) ;
  • Lee, Sung-Mo (Incheon Metropolitan City Institute of Health & Environment) ;
  • Kim, Sung-Jae (College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University) ;
  • Kim, Nam-Hee (College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University) ;
  • Yang, Don-Sik (College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University) ;
  • Han, Jeong-Hee (College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University)
  • 이창희 (강원대학교 수의과대학.동물종합연구소) ;
  • 황원무 (인천광역시보건환경연구원) ;
  • 이정구 (인천광역시보건환경연구원) ;
  • 이성모 (인천광역시보건환경연구원) ;
  • 김성재 (강원대학교 수의과대학.동물종합연구소) ;
  • 김남희 (강원대학교 수의과대학.동물종합연구소) ;
  • 양돈식 (강원대학교 수의과대학.동물종합연구소) ;
  • 한정희 (강원대학교 수의과대학.동물종합연구소)
  • Received : 2011.10.08
  • Accepted : 2011.10.28
  • Published : 2011.12.30
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Abstract

The purpose of this study was to investigate association with gross lesions and causative pathogens of porcine respiratory disease complex (PRDC) including porcine circovirus type 2 (PCV2), porcine reproductive and respiratory syndrome virus (PRRSV), swine influenza virus (SIV), Mycoplasma hyopneumoniae (MH), Pasteurella multocida (PM), Actinobacillus pleuropneumoniae (APP), Haemophilus parasuis (HP) in slaughtered pigs. A total of 1,200 lung samples were collected randomly from slaughtered pigs in Korea during August of 2010 through July of 2011. The gross lesions were classified according to the six stages (0, 1~10, 11~20, 21~30, 31~40 and ${\geq}41$, unit=%) and 48 samples from each stage were selected to detect viral and bacterial pathogens. The results according to the six stages were 100 (8.3%), 259 (21.6%), 326 (27.2%), 213 (17.8%), 144 (12.0%) and 158 (13.2%) cases, respectively. Prevalence of pneumonia according to season was 87.0~96.7% and the highest prevalence was in spring. In detection of pathogens by PCR, 53 samples were not detected any causative pathogens of PRDC. PCV2, PRRSV, SIV, MH, PM, APP serotype 2, APP serotype 5 and HP were positive in 45.5%, 12.5%, 10.4%, 60.1%, 1.7%, 13.9%, 12.2% and 15.6%, respectively. In co-infection, PCV2-MH was the most detected causative pathogens of PRDC. The detection rate of PCV2 and PRRSV was the highest in spring, of SIV, MH and HP was in winter. The detection rate of APP-2 and APP-5 had no seasonal prevalence. The more severe gross lesions increased, the higher the detection rate showed.

Keywords

References

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