2015—2017年贵州省猪蓝耳病免疫状况调查

Survey for the Immune Status of PRRS from 2015 to 2017 in Guizhou Province

为了解近年来贵州省猪蓝耳病免疫状况,采集贵州省9个市(州)不同规模养猪场(户)的猪血清样本,采用间接ELISA方法进行猪蓝耳病免疫抗体检测。结果:2015—2017年全省养猪场(户)猪蓝耳病平均免疫率为68.9%,其中种猪场、商品场、散养户的免疫率分别为100%、82.8%、47.1%;猪蓝耳病免疫抗体平均合格率为82.2%,其中种猪场、商品场、散养户的免疫合格率分别为98.9%、81.9%、59.2%;不同季节和不同海拔地区养猪场的猪蓝耳病免疫抗体合格率差异不显著(P>0.05)。结果表明:目前全省种猪场和商品场重视猪蓝耳病的免疫防控工作且免疫效果较好,但散养户猪蓝耳病的免疫效果较差,应引起重视。

To understand the immune status of PRRS in recent years in Guizhou province,the pig serum samples were collected from different farms,and were used for detection of PRRS antibodies by indirect ELISA method.The results showed that the average of PRRS vaccination coverage rate was 68.9%in 2015-2017,in which the coverage rate were respectively 100%,82.8%and 47.1%in pig breeding livestock farms,commodity pig farms and scattered household farms,and the positive rate of PRRS antibodies were respectively 98.9%,81.9%and 59.2%,which the average value was 82.2%.There were no significant difference in the positive rate of PRRS antibodiesin the different seasons and the farms at different elevations.These results indicated that the prevention and control of PRRS would be attached to importance and the good immunization effect in pig breeding livestock farms and commodity pig farms,but poor in the scattered household farms.