title: Influence of site of administration of urea on voluntary intake of concentrate by lactating cows.
mesh_terms: D000018:Abomasum; D000284:Administration, Oral; D000641:Ammonia / Q000097:blood; D000821:Animal Feed; D000818:Animals; D001806:Blood Urea Nitrogen; D002417:Cattle / Q000378:metabolism* / Q000502:physiology; D004032:Diet; D004435:Eating; D002523:Edible Grain; D005260:Female; D005402:Fistula; D007774:Lactation; D008297:Male; D008965:Molasses; D011247:Pregnancy; D012417:Rumen; D013025:Glycine max; D013649:Taste; D013997:Time Factors; D014508:Urea / Q000008:administration & dosage* / Q000378:metabolism / Q000494:pharmacology; D003313:Zea mays
chemical_list: D000641:Ammonia; D014508:Urea