[目的]掌握宁夏地区部分牛场犊牛病毒性腹泻病毒感染情况，为犊牛病毒性腹泻的净化和综合防治提供依据。[方法]从宁夏4个市9个县（区）的25个发病牛场（户）采集血清样品191份，采用ELISA方法，进行血清学调查。[结果]宁夏4个地级市犊牛病毒性腹泻的抗体阳性率高达64.92%，并有一定程度的抗原阳性，且主要发生在1月龄以内的犊牛。[结论]牛病毒性腹泻是具有重大经济意义的疾病，是今后宁夏养牛业应重点防范的疾病之一。%Objective]The aim of the study was to understand the infection of bovine viral diarrhea virus(BVDV)on some cattle farms in some parts of Ningxia and to provide the basis for cleaning up and comprehensive prevention and control of bovine viral diarrhea. [Methods] 191 bovine serum samples were collected from 25 cattle farms in 4 cities of Ningxia to detect the infection of BVDV by ELISA method. [Results]Results showed that BVDV antibody positive rate was as high as 64.92% in 4 cities of Ningxia,and antigen positive was detected in a certain degree. And most of BVD occurred in less than one month old calves. [Conclusion]Bovine viral diarrhea is one of the diseases with great eco-nomic signiifcance on cattle farms,and it was also the disease that should be prevented primarily for the cattle industry in Ningxia in the future.
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