Identification of the ovulating follicle by its size on different days of the estrous cycle in heifers.
D000818:Animals; D002417:Cattle / Q000033:anatomy & histology / Q000502:physiology*; D004971:Estrus; D005260:Female; D006080:Ovarian Follicle / Q000166:cytology*; D010060:Ovulation; D011247:Pregnancy; D013997:Time Factors