title: Urea transfer in ruminants. 2. Net urea transfer in sheep under semi-arid conditions.
mesh_terms: D000641:Ammonia / Q000378:metabolism; D000818:Animals; D001806:Blood Urea Nitrogen; D003889:Desert Climate; D004534:Egypt; D008297:Male; D012417:Rumen / Q000378:metabolism*; D012756:Sheep / Q000378:metabolism*; D014508:Urea / Q000008:administration & dosage / Q000378:metabolism*; D014868:Water Deprivation
chemical_list: D000641:Ammonia; D014508:Urea