Korean Journal of Veterinary Service (한국동물위생학회지)

The Korean Society of Veterinary Service (한국동물위생학회)
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The prevalence of avian reovirus infection in poultry farms of Jeonbuk province, Korea

전북지역 양계농가의 조류레오바이러스 유병율 조사

  • Jeong, Jae-Kyo (South-Branch, Jeonbuk Veterinary Service Laboratory) ;
  • Jeong, Hansol (South-Branch, Jeonbuk Veterinary Service Laboratory) ;
  • An, Euingyoub (South-Branch, Jeonbuk Veterinary Service Laboratory) ;
  • Han, Seunghwan (South-Branch, Jeonbuk Veterinary Service Laboratory)
  • 정재교 (전라북도동물위생시험소 남부지소) ;
  • 정한솔 (전라북도동물위생시험소 남부지소) ;
  • 안응엽 (전라북도동물위생시험소 남부지소) ;
  • 한승환 (전라북도동물위생시험소 남부지소)
  • Received : 2019.07.08
  • Accepted : 2019.12.24
  • Published : 2019.12.30
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Abstract

Avian reovirus (ARV) is the pathogenic agent of tenosynovitis and malabsorption syndrome in broiler, which has caused significant economical losses due to poor feeder efficiency and stunting. In order to determine the prevalence of ARV infection in poultry farms in Jeonbuk province, Korea, we performed a surveillance study by testing 179 cecal samples from 131 broiler farms for virus detection, and 1,181 serum samples from 33 broiler farms (n=292) and 22 broiler breeder farms (n=1,525) for antibody detection in the province. Virological examination using RT-PCR showed that ARV were detected in 26.0% of the tested farms (34/131),with the highest positive rates in broilers of 6 days old or more in summer season. In serological test using ELISA, broiler and broiler breeder farms examined were all ARV antibody positive. In broiler, the positive rate and antibody titers showed a tendency to decrease with age in contrast to those of broiler breeders. Our results indicate that ARV is ubiquitous in broilers and broiler breeders in the province.

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References

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