平顶山市猪繁殖与呼吸综合征的血清学调查

Investigation of Pig Reproduction and Breath Syndroume Serology in Pingdingshan City

通过对平顶山市6个县30个规模化猪场猪繁殖与呼吸综合症血清学调查，了解了平顶山市猪繁殖与呼吸综合症血清学流行情况。结果表明，12个未免疫猪场均不同程度受PRRSV感染，猪场抗体阳性率为100％，猪群抗体阳性率在47．4％-73．1％之间，平均阳性率为57．9％；18个免疫猪场PRRS感染率为77．8％，免疫猪场猪群PRRSV抗体阳性率在75％～100％之间，平均为90．9％。所有猪场不同猪群，生产母猪平均S／P值高于仔猪，后备母猪平均S／P值高于生产母猪。免疫PRRS猪场抗体S／P值，明显高于未免疫PRRS猪场猪群的抗体S／P值，差异极显著（P〈0．01）。

Immediately adopted 645 blood serums from 12 not immunity pig farms and 18 immunity pig farms in 6 county of Ping~ dingshan City, examined the PRRS immune body using the ELISA law. The results indicated that 12 no immunity pig farm infected PRRSV in varying degrees, the antibody of positive rate of pig farm was 100%, the antibody of positive rate of pig group was 47.4% -73.1% , average positive rate was 57.9%. 18 immunity pig farm infected PRRSV was 75% - 100% , average positive rate was 90.9%. Different pig group all pig farm, the average S/P value of production sow was higher than the newborn pig, the average S/P value of reserve sow was higher than production sow. Immune body S/P value of the pig farm immunity PRRS was obviously higher than immune body S/P value of no immunity PRRS the pig farm, the difference was significant （P 〈0.01 ）.