Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (2): 31-34.doi: 10.11924/j.issn.1000-6850.2014-1748

Special Issue: 畜牧兽医

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Serological Detection of Porcine Reproductive and Respiratory Syndrome in Large-scale Swine Farms in Hubei Province

Yang Keli, Tian Yongxiang, Duan Zhengying, Zhou Danna, Guo Rui, Liu Zewen, Yuan Fangyan, Meng Li   

  1. (Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Wuhan 430064 )
  • Received:2014-06-23 Revised:2014-12-11 Accepted:2014-09-05 Online:2015-03-19 Published:2015-03-19

Abstract: 5160 porcine sera, which were collected from 50 farms in Hubei province, were detected antibody against PRRSV by ELISA. The results showed that the average PRRSV positive rate of non-immunized farms was 33.54% (21.10%-46.92%), the positive rate of farms was 100%, and the average PRRSV positive rate of immunized farms was 75.52% (68.46%-100%). The positive rate of boar, sow, fattening pigs, weanling pigs and suckling piglets was 0, 7.69%, 34.24%, 28.18%, and 38.53% in non-immunized farms; and 100%, 96.78%, 70.07%, 74.28% and 68.46% in immunized farms, respectively. The results indicated that subclinical infection was widespread and seriously harmful in Hubei province.