Kirkland P D, Hart K G, Moyle A, Rogan E
Virology Laboratory, Elizabeth Macarthur Agricultural Institute, Camden, New South Wales.
Aust Vet J. 1990 Jul;67(7):261-3. doi: 10.1111/j.1751-0813.1990.tb07782.x.
After the introduction of pestivirus into a herd undergoing an embryo transfer and artificial insemination program, substantial post-weaning calf losses occurred. The predominant clinical feature was severe respiratory disease, in contrast to the commonly recognised mucosal disease. Thirty-one of 76 calves were affected, with a case fatality rate of 58%. All calves which were persistently infected with pestivirus died during the study period. There was a significant association in the surviving calves between the occurrence of recent pestivirus infection and respiratory disease. The losses on this property clearly indicate the need to routinely screen animals in an artificial breeding program for freedom from pestivirus infection.
在将瘟病毒引入一个正在进行胚胎移植和人工授精计划的牛群后，断奶后犊牛出现了大量死亡。主要临床特征为严重的呼吸道疾病，这与通常认识的黏膜病不同。76头犊牛中有31头受到影响，病死率为58%。所有持续感染瘟病毒的犊牛在研究期间死亡。在存活的犊牛中，近期瘟病毒感染的发生与呼吸道疾病之间存在显著关联。该养殖场的损失清楚地表明，在人工繁育计划中需要对动物进行常规筛查，以确保无瘟病毒感染。
