유우의 번식장해 발생률과 번식장해우의 질내세균총에 관한 조사연구

Studies on the Incidence Rate of Reproductive Failure and Bacterial Flora in Vagina in Dairy Cow

In these three and half years, the number of dairy cow diagnosed and treated at Veterinary Clinic, College of Animal Husbandary, Kun kuk University was amunted to 4510 heads of Holstein breed. In order to survey the aspect of reproductive failure incidenc