Brown, H W Total sulfur-containing amino acids isoleucine and tryptophan requirements of the finishing pig for maximum nitrogen retention. [electronic resource] - Journal of animal science Jan 1974 - 59-63 p. digital Publication Type: Journal Article ISSN: 0021-8812 Standard No.: 10.2527/jas1974.38159x doi Subjects--Topical Terms: Amino Acids, Sulfur--metabolismAnimalsDietFeces--analysisGlutamates--administration & dosageIsoleucine--administration & dosageLysine--administration & dosageMaleMethionine--administration & dosageNitrogen--analysisNutritional RequirementsSwine--growth & developmentTryptophan--administration & dosage