Incidence of cystic ovaries in Holstein-Friesian cows.
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001947:Breeding; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D004971:Estrus; D005260:Female; D007774:Lactation; D010048:Ovarian Cysts / Q000453:epidemiology / Q000662:veterinary*; D049590:Postpartum Period; D011247:Pregnancy; D013997:Time Factors; D014922:Wisconsin