title: Dietary urea for dairy cattle IV. Effect on reproductive hormones.
mesh_terms: D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002417:Cattle; D004967:Estrogens / Q000097:blood / Q000652:urine; D005260:Female; D012739:Gonadal Steroid Hormones / Q000378:metabolism*; D007774:Lactation / Q000187:drug effects; D007986:Luteinizing Hormone / Q000097:blood; D010060:Ovulation / Q000187:drug effects; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D014508:Urea / Q000494:pharmacology*
chemical_list: D004967:Estrogens; D012739:Gonadal Steroid Hormones; D011374:Progesterone; D014508:Urea; D007986:Luteinizing Hormone