Abstract: Infertility is a very common reproductive system disease in the process of dairy cow feeding, mainly in cows that cannot conceive normally after 6 months of childbirth or reach the breeding age and cannot conceive. There are many causes of cow infertility, including management factors, reproductive technology factors, mainly ovarian disease factors, such as ovarian stasis, ovarian atrophy, persistent luteum, ovarian cyst and ovaritis. After the onset, cows have typical symptoms such as delayed estrus, abnormal estrus, and inability to fertilize normally, which not only reduces milk production, but also affects normal reproduction, and ultimately affects the economic benefits of breeding. This paper focused on infertility caused by ovarian disease in dairy cows, took ovarian disease as the entry point, summarized the diagnosis points, proposed treatment and prevention methods according to the current prevalence of infertility caused by ovarian disease, provided theoretical guidance for improving the treatment and prevention effects of infertility in dairy cows, and promoted the development of dairy cow breeding in China.

Key words: cow, ovarian disease, infertility, prevention, treatment