title: Origin of amino acids in rumen bacteria. Studies using (15 N)urea [proceedings].
mesh_terms: D000596:Amino Acids / Q000378:metabolism*; D000818:Animals; D010367:Arachis; D001419:Bacteria / Q000378:metabolism*; D002417:Cattle; D009584:Nitrogen / Q000378:metabolism; D012417:Rumen / Q000382:microbiology*; D014508:Urea / Q000378:metabolism
chemical_list: D000596:Amino Acids; D014508:Urea; D009584:Nitrogen