report

Effects of increasing total sulfur amino acid:lysine ratio on growth performance of 25 to 50 lb pigs

Authors

Abstract

Three hundred and fifty pigs were used in a 27-d growth study to determine the appropriate total sulfur amino acid:lysine ratio for 25 to 50 lb pigs. Pigs were blocked by weight (initially 22.5 lb) and allotted to one of 10 treatments arranged in a 2 x 5 factorial with two levels of total dietary lysine (.95 and 1.250/0) and five total sulfur amino acid ratios (.45, .50, .55, .60, and .65% of total lysine). Increasing total lysine from .95 to 1.25% increased ADG and improved FIG. Increasing the total sulfur amino acid:lysine ratio did not affect ADG but improved F/G. These results indicate that the optimal total sulfur amino acid:lysine ratio for the 25 to 50 lb pig is not greater than 55%.; Swine Day, Manhattan, KS, November 19, 1998

Keywords: Swine day, 1998, Kansas Agricultural Experiment Station contribution, no. 99-120-S, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 819, Swine, Methionine, Lysine, Nursery pigs

How to Cite: De La Llata, M. , O'Quinn, P. R. , Woodworth, J. C. , Moser, S. A. , Tokach, M. D. , Goodband, R. D. , Nelssen, J. L. & Dritz, S. S. (1998) “Effects of increasing total sulfur amino acid:lysine ratio on growth performance of 25 to 50 lb pigs”, Kansas Agricultural Experiment Station Research Reports. 1(10). doi: https://doi.org/10.4148/2378-5977.6593