为了解宁夏地区部分规模奶牛场牛病毒性腹泻病的感染率,制定防控措施,达到建设疾病防控净化场的目的,应用牛病毒性腹泻病抗原检测试剂盒和牛病毒性腹泻病抗原快速检测卡对不同阶段牛只进行检测。结果表明：检测的3 家奶牛场都存在牛病毒性腹泻病毒抗原阳性牛,采用牛病毒性腹泻病抗原检测试剂盒检测青年牛和成母牛;采用牛病毒性腹泻病抗原快速检测卡现场检测初生犊牛。抗原阳性牛加以淘汰,并采用调整免疫程序监测免疫抗体和加强综合防控的方法,使得宁夏部分规模奶牛场牛病毒性腹泻病得到了净化。说明分别用牛病毒性腹泻病抗原检测试剂盒和抗原快速检测卡对牛血清和耳组织检测,发现牛病毒性腹泻抗原阳性牛并淘汰阳性牛、调整免疫程序的方法可以净化牛病毒性腹泻。

Bovine viral diarrhea (bovine viral diamhe, BVD) is a type of bovine viral diamhe virus (bovine viral diamhe virus BVDV) that can infect cattle,goats,sheep,pigs and other livestock animals.It can also cause camels and deer.Such as other wild animal infections, the pathogen is the most common clinically infecting cattle.At present, BVD is still a major economic disease and immunosuppressive disease that endangers the world's cattle industry.The disease can directly lead to poor reproduction and production performance of cattle,and indirectly increase the loss and prevention of cattle respiratory and digestive diseases.BVDV can be permanently transmitted in the herd through persistently infected fetal cattle.Based on the prevalence and harm of BVD in Ningxia, it is an urgent and long-term task to promote the purification of the disease on large-scale dairy farms,which is of great significance to the healthy development of Ningxia's dairy industry.Numerous large-scale dairy farms in Ningxia have eliminated persistently infected cattle through detection and immunization to protect the herd to reduce the emergence of new persistently infected cattle,effectively controlling and purifying the disease.