Reproductive performance of 2-year-old Hereford and Angus heifers as influenced by pre- and post-calving energy intake.
D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001835:Body Weight; D002417:Cattle / Q000254:growth & development / Q000502:physiology*; D004971:Estrus; D005260:Female; D049590:Postpartum Period; D011247:Pregnancy; D012098:Reproduction