title: Nitrogen metabolism in ruminants: rate of ruminal ammonia production and nitrogen utilization by ruminants--a review.
mesh_terms: D000641:Ammonia / Q000378:metabolism*; D000818:Animals; D009584:Nitrogen / Q000378:metabolism*; D012417:Rumen / Q000378:metabolism*; D014508:Urea / Q000378:metabolism; D014510:Urease / Q000378:metabolism
chemical_list: D000641:Ammonia; D014508:Urea; D014510:Urease; D009584:Nitrogen