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Acute porcine reproductive and respiratory syndrome outbreaks in immunized sow herds: from occurrence to stabilization under whole herd vaccination strategy

Korean journal of veterinary research = 대한수의학회지, v.58 no.2, 2018년, pp.73 - 79  

Moon, Sung Ho (College of Veterinary Medicine, Konkuk University) ,  Yoo, Sung J. (College of Veterinary Medicine, Konkuk University) ,  Noh, Sang Hyun (College of Veterinary Medicine, Konkuk University) ,  Kwon, Taeyong (College of Veterinary Medicine, Konkuk University) ,  Lee, Dong Uk (College of Veterinary Medicine, Konkuk University) ,  Je, Sang H. (College of Veterinary Medicine, Konkuk University) ,  Kim, Myung Hyee (College of Veterinary Medicine, Konkuk University) ,  Seo, Sang Won (College of Veterinary Medicine, Konkuk University) ,  Lyoo, Young S. (College of Veterinary Medicine, Konkuk University)

Abstract AI-Helper 아이콘AI-Helper

Outbreaks of porcine reproductive and respiratory syndrome virus (PRRSV) in vaccinated sow herds from occurrence to stabilization were monitored and analyzed in terms of serology and reproductive performance. Three different conventional pig farms experienced severe reproductive failures with the in...

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문제 정의

  • In this study, we identified that the type 2 PRRS vaccine cannot confer cross protection against type 1 PRRSV infection under field conditions through the observations of abruptly increased abortion cases. Accordingly, we examined the immunization strategy of using both type 1 and type 2 PRRS vaccines in alternate manner following acute PRRS outbreaks and succeeded in the stabilization of PRRSV with no evidences of adverse effect or virus circulation.
  • Further, we specified reproductive parameters significantly influenced by the altered vaccination regimen and PRRS outbreak. These findings described in this case study will be a valuable information for swine practitioners and producers.
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참고문헌 (30)

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