福建省部分规模猪场猪圆环病毒病疫苗免疫效果评价与分析

为了解免疫不同圆环病毒病疫苗的抗体水平,给养殖户提供合适的免疫依据,对福建省不同地区8个猪场在使用不同猪圆环病毒病疫苗和免疫程序后猪群的抗体水平进行检测。结果显示:免疫场和未免疫场各阶段种猪群的猪圆环病毒病抗体阳性率皆为100%,差异不显著(P>0.05);但各阶段种猪群的S/P平均值,免疫场较未免疫场更高;同时通过比较变异系数发现,未免疫场种猪的抗体水平更活跃;14日龄免疫亚单位疫苗后抗体水平较高且维持时间较长,而免疫全病毒灭活苗后抗体水平仍持续下降。综上,种猪群免疫圆环病毒病疫苗是必要的,亚单位疫苗比全病毒灭活苗的免疫效果好。

Immune effect evaluation of porcine circovirus vaccine in some pig farms in Fujian province

In order to understand the antibody level of different circoidal vaccines and provide appropriate basis for farmers' circoidal immunity.The antibody levels of pigs after different immunization programs using different porcine circovirus vaccines were tested in 8 pig farms in different areas of Fujian province. The result showed that the pigs in the immunization field and the non-immunized field were positive for the pig ring antibody. The rates were all 100%, and the difference was not significant(P>0.05);however, the average S/P of the pigs at each stage was higher than that of the non-immunized field;and the antibody coefficient of the unimmunized field of the pigs was found to be more active by comparing the coefficient of variation. the antibody level of the 14-day-old immunized subunit vaccine was higher and the maintenance time was longer, and the antibody level continued to decrease after the immunization of the whole virus inactivated vaccine. It was found that it is necessary to breed the immune circovirus vaccine of pigs. The immune effect of porcine circovirus subunit vaccine is better than that of whole virus inactivated vaccine. The porcine circovirus type 2 ELISA antibody detection kit used in this experiment can reflect the antibody of artificial immunity and wild-type infection.