摘要
猪圆环病毒3型是近年来发现的又一种致病性猪圆环病毒,已在不少地区存在。为了了解猪圆环病毒3型在一些地区的流行情况,用PCR方法检测了湖南省与京津冀地区523头断奶仔猪血清样品中的病毒核酸。结果显示,猪圆环病毒3型核酸的猪场阳性率为68.75%,个体阳性率为31.74%,整体存在极显著(P<0.01)差异。进一步分析发现,病毒核酸阳性率超过20%的猪场达到50%,超过70%的猪场占18.75%,为0%的猪场占31.25%。调查结果表明,猪圆环病毒3型感染在我国一些地区广泛存在,但在不同猪场的感染率差异很大。
Porcine circovirus type 3(PCV3)is another pathogenic circovirus discovered in recent years,which has been found in many areas.Sera samples of 523 weaning piglets from Hunan,Beijing,Tianjin and Hebei province were determined by PCR assay to understand the epidemic situation of PCV3 in some areas.The results showed that the positive rate of PCV3 nucleic acid was 68.75%in farms and 31.74%in individuals,and there was a very signifi cant difference in the whole(P<0.01).Further analysis demonstrated that the positive rate of viral nucleic acid was more than 20%in 50%of pig farms,more than 70%in 18.75%of pig farms,and 0%in 31.25%of pig farms.This investigation results indicated that the PCV3 infection was widespread in some areas of China and the infection rate varied greatly in different pig farms.
作者
肖兴
蒋小玲
芮雪
贺晓霜
段燕方
周双海
Xing Xiao;Xiaoling Jiang;Xue Rui;Xiaoshuang He;Yanfang Duan;Shuanghai Zhou(Hengyang Municipal Center for Animal Husbandry and Fisheries Affairs,Hengyang,Hunan 421001,China;Animal Science and Technology College,Beijing University of Agriculture,Beijing 102206,China)
出处
《猪业科学》
2021年第8期73-75,4,共4页
Swine Industry Science
基金
北京市科技计划课题(D17110500210000)。
