title: The relationship between urea retention to ammonia concentration in the rumen of the sheep after intravenous administration of urea.
mesh_terms: D000641:Ammonia / Q000032:analysis / Q000378:metabolism; D000818:Animals; D007275:Injections, Intravenous; D012417:Rumen / Q000378:metabolism*; D012756:Sheep; D013217:Starvation; D014508:Urea / Q000097:blood / Q000494:pharmacology* / Q000652:urine
chemical_list: D000641:Ammonia; D014508:Urea