Effect of Anovulation and Subclinical Endometritis on Fertility of Lactating Dairy Cows: Why Are Dairy Cows Not Getting Pregnant: Lack of Cyclicity, Uterine Disease, or Both?

Feeding dairy cows at the University of Florida's Dairy Research Unit in Hague, Florida. Bos taurus, dairy cattle, livestock, industry, DRU. UF/IFAS Photo: Tyler Jones.Virtually all Holstein dairy cows have the first wave of follicle growth starting two weeks postpartum, with about 30% of these cows ovulating within 21 days in milk. This 3-page fact sheet presents the results of a recent paper that evaluated the individual and combined effects of anovulation and subclinical endometritis on reproductive performance of dairy cows. Written by Klibs N. Galv√£o and Achilles Vieira-Neto, and published by the UF Department of Veterinary Medicine-Large Animal Clinical Sciences, May 2014.