title: Protein and amino acid nutrition of lactating dairy cattle.
abstract: This article describes the National Research Council Model of protein metabolism and illustrates its use in meeting the protein requirements of lactating cows. Attention is then directed toward amino acid nutrition with emphasis on the need for models to estimate amino acid requirements. Finally, the potential to improve productivity with rumen-protected amino acids is considered.
authors.affiliation: Center for Animal Health and Productivity, University of Pennsylvania School of Veterinary Medicine, New Bolton Center, Kennett Square.
authors.forename: W
authors.initials: W
authors.lastname: Chalupa
authors.forename: C J
authors.initials: CJ
authors.lastname: Sniffen
mesh_terms: D000596:Amino Acids / Q000008:administration & dosage / Q000378:metabolism*; D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002417:Cattle / Q000502:physiology*; D004044:Dietary Proteins / Q000008:administration & dosage / Q000378:metabolism*; D005260:Female; D007774:Lactation / Q000502:physiology*; D012417:Rumen / Q000502:physiology
chemical_list: D000596:Amino Acids; D004044:Dietary Proteins