【摘要】 牛病毒性腹泻-黏膜病是牛最重要的传染病之一,给全球的奶牛业造成了严重的经济损失。为了调查上海地区奶牛场该病的流行情况,通过对2009年1月~4月份采集的上海10个区(县)18个规模化奶牛场成年乳牛和育成牛共180份血清以及奉贤区25份犊牛血清进行了病原和抗体的酶联免疫吸附试验检测。结果表明,上海地区奶牛场205份血清中该病的抗原阳性率均为0,育成牛、成乳牛和犊牛中感染抗体阳性率分别为43.3%、37.8%、96%。结果说明上海地区奶牛场普遍存在该病的感染,在个别场感染率甚至达到很高的水平,应该引起足够的重视。更多还原

【Abstract】 Bovine viral diarrhea virus(BVDV) is widely reported as one of the most costly viral pathogen for the cattle industry worldwide.In this study,in order to investigate the prevalence of the disease in dairy cow farm in Shanghai arear,205 serum samples of were tested by ELISA,108 samples collected from 18 adult and breeding cow farms in 10 Shanghai district(county),25 samples collected from the calf farms in Fengxian district.These seram samples was collected during January to April 2009.The results showed that the antigen positive rate were 0%,the antibody positive rates in breeding cows,aduit cows and calves were 43.3%,37.8% and 96%,respectively.The result showed that dairy farms in the Shanghai region have the prevalence of BVDV infection,the infection rates in individual farms even treach a high level,and this result should arouse enough attention.更多还原