Trotter, M.Allee, G.L.2010-05-072010-05-072010-05-07http://hdl.handle.net/2097/3961Swine Industry Day 1974 is known as Swine Day, 1974A growth and two nitrogen retention studies were conducted to determine the sulfur amino acid requirement of the finishing pig. Adding 0.10% DL-methionine to a 9.0% protein semi-purified basal diet containing 0.14% total sulfur amino acids significantly (P<.05) increased nitrogen retention, but further additions of DL-methionine had no beneficial effect. Daily gain was not significantly affected by adding DL-methionine to the basal diet, suggesting that the finishing pig has a lower sulfur amino acid requirement for daily gain than is essential for maximum nitrogen retention. These results suggest that the sulfur amino acid requirement of the finishing pig fed a 9.0% protein diet does not exceed 0.24% of the diet.SwineSulfur amino acidFinishing pigDL-methionineProteinConference paper