贵州地区猪场猪传染性胸膜肺炎与其他疫病混合感染情况的血清学调查

Serological survey of APP and other epidemics mixed infection of scale piggery pig farm

为摸清贵州地区猪场猪传染性胸膜肺炎及其他疫病感染情况,对来自全省9个地区251个猪场的2 635份血清进行APP、PRRS、CSF、PRV、PCV-2、PPV、JEV、TOX、Mhyo、TGEV、PRCV等11种疫病的血清学检测。结果表明,共有198个猪场的974份血清出现APP抗体阳性,猪场阳性率为78.88%,血清阳性率为36.96%。对APP抗体阳性的198个猪场进行其他疫病检测,发现所有猪场均存在与其他疫病不同程度的混合感染,其中3种混合感染类型(APP/PRV/PCV-2/PPV/JEV/TOX/Mhyo、APP/PRV/PCV-2/PPV/JEV/TOX、APP/PCV-2/PPV/JEV/TOX)较为严重,猪场混合感染率分别为23.74%、17.68%和12.12%;974份APP阳性血清中有968份血清发生APP与其他疫病不同程度的混合感染,混合感染率为99.38%,其中4种混合感染类型(APP/PCV-2/PPV/JEV/TOX、APP/PRV/PCV-2/PPV/JEV/TOX/Mhyo、APP/PRV/PCV-2PPVJEVTOX、APP/PPV/JEV/TOX)较为严重,血清混合感染率分别为12.22%、11.91%、9.24%和8.32%。

In order to find out APP and other epidemics mixed infection of scale piggery,2 635 serum samples from 251 herbs of nine districts in Guizhou were tested for APP,PRRS,CSF,PRV,PCV-2,PPV,JEV,Mhyo TGEV TOX,PRCV et al.by serological methods.The results showed that 974 serum samples from 198 herbs were APP positive by ELISA,and the positive rate of farms was 78.88%,the serum positive rate was 36.96%.Moreover,all the 198 herbs in which APP was positive mixed infection with other epidemics.Three kind of mixed infection types（APP、PRV、PCV-2、PPV、JEV、TOX、Mhyo;APP、PRV、PCV-2、PPV、JEV、TOX;APP、PCV-2、PPV、JEV、TOX） were more common that the rate reached to 23.74%、17.68% and 12.12% respectively;968/974 APP positive serum occurred mixed infection with other epidemics.