The optimal ratio of apparent digestible valine to lysine to maximize growth performance of the nursery pig (2001)

Authors

B W. James
J C. Woodworth
Robert D. Goodband
Michael D. Tokach
Jim L. Nelssen
Joel M. DeRouchey
Steven S. Dritz

Keywords

Swine day, 2001; Kansas Agricultural Experiment Station contribution; no. 02-132-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 880; Swine; Valine; Lysine; Nursery Pig

Abstract

A total of 210 nursery pigs (initially 19.6 lb and approximately 28 d of age) were used in a 21-d growth assay to determine the optimal ratio of valine to lysine to maximize growth performance. The seven treatments consisted of a basal diet (14.2% CP; 1.07% apparent digestible lysine) with increasing ratios of valine:lysine (48, 53, 58, 63, 69, and 74%) and a negative control containing 0.97% lysine and 0.79% apparent digestible valine. Results indicate that the optimal apparent digestible valine:lysine ratio for the nursery pig is 58 and 64% for ADG and F/G, respectively. Therefore, most typical nursery diets will contain adequate amounts of valine to maximize growth performance of nursery pigs.; Swine Day, Manhattan, KS, November 15, 2001

Recommended Citation

James, B W.; Woodworth, J C.; Goodband, Robert D.; Tokach, Michael D.; Nelssen, Jim L.; DeRouchey, Joel M.; and Dritz, Steven S. (2001) "The optimal ratio of apparent digestible valine to lysine to maximize growth performance of the nursery pig (2001)," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 10. https://doi.org/10.4148/2378-5977.6696