title: The need for nitrogen.
authors.affiliation: Rowett Research Institute, Bucksburn, Aberdeen, United Kingdom.
authors.forename: C J
authors.initials: CJ
authors.lastname: Newbold
mesh_terms: D000596:Amino Acids / Q000008:administration & dosage / Q000378:metabolism; D000641:Ammonia / Q000008:administration & dosage / Q000378:metabolism; D000818:Animals; D002417:Cattle; D004063:Digestion; D005285:Fermentation; D009584:Nitrogen / Q000008:administration & dosage / Q000378:metabolism*; D012417:Rumen / Q000502:physiology*
chemical_list: D000596:Amino Acids; D000641:Ammonia; D009584:Nitrogen