In this research,the swine sera from part breeding pig plants in Sichuan province were collected,and the sero-antibody of PPV was detected by LAT. The result shows that the average positive rate is56%,and the highest is93%,the lowest is14.71%.

• 采用乳胶凝集抗原；对我省部分种畜(猪)场的猪血清进行了猪细小病毒病血清抗体检测；结果显示；平均阳性率为56%25；其中阳性率最高达93%25；最低为14.；71%25。