摘要
为分析我国猪细环病毒(TTSuV)和猪圆环病毒2型(PCV2)的共感染情况,利用所设计的TTSuV(TTSuV1、TTSuV2)和PCV2特异性引物对我国29个省市采集的猪群血清样品同时进行PCV2和TTSuV(TTSuV1、TTSuV2)PCR检测,分析混合感染情况。结果所检测的1 898份样品中,TTSuV阳性为1 103份(58%),PCV2阳性为435份(23%)。阳性样品中呈混合感染的有275份(14%),其中TTSuV1和PCV2为249份(13%),TTSuV2和PCV2为200份(10%),均为阳性的有174份(9%)。调查结果显示,我国猪群中TTSuV和PCV2混合感染现象较为普遍,对地区性分布特征和饲养模式等影响因素的分析表明TTSuV和PCV2混合感染情况存在地区性差异(P<0.01),但饲养模式并不是共感染的关键因素。
The aim of this study was to investigate the prevalence of porcine circovirus 2 （PCV2） and Torque teno sus virus （TTSuV） co-infection in China, 1898 swine serum samples were col- lected from 29 provinces in China in 2009 and detected for TTSuV1, TTSuV2 and PCV2 by PCR. I 103 samples were TTSuV positive （58%）, 435 samples were PCV2 positive （23%）. Among the positive samples, 275 （14%） samples were both positive for PCV2 and TTSuV, including 249 （13%） infected with both TTSuV1 and PCV2, 200 （10%） infected with both TTSuV2 and PCV2, and 174 were triple infection. These results suggested that co-infection of TTSuV and PCV2 was highly prevalent in China. Distribution analyses of positive pig herds demonstrated that there were significant difference in different regions, and the breed pattern might not be a factor of aggravation in the co-infection.
出处
《畜牧兽医学报》
CAS
CSCD
北大核心
2012年第3期424-430,共7页
ACTA VETERINARIA ET ZOOTECHNICA SINICA
基金
国家生猪产业技术体系北京创新团队建设(GWZJ-2009-05)
