Abstract
A total of 2,290 pigs (PIC 1050 × 337; initially 157 lb) were used to determine the effect of tryptophan source (L-tryptophan vs. soybean meal) and increasing SID tryptophan:lysine ratio in diets containing 30% dried distillers grains with solubles (DDGS) on finishing pig performance. Pens of pigs were balanced by initial weight and randomly allotted to 1 of 7 dietary treatments in a completely randomized design with 26 to 28 pigs per pen and 10 to 13 replications per treatment. Treatments were arranged as a 2 × 3 factorial with main effects of tryptophan source (L-tryptophan or soybean meal) and SID tryptophan:lysine ratio (18, 20, and 22% of lysine). The seventh treatment was a negative control diet formulated to a 16% SID tryptophan:lysine ratio.; Swine Day, Manhattan, KS, November 15, 2012
Keywords: Kansas Agricultural Experiment Station contribution, no. 13-026-S, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 1074, Swine, Amino acids, DDGS, Finishing pig, Lysine, Tryptophan
How to Cite:
Nitikanchana, S., Usry, J. L., Tokach, M. D., Goodband, R. D., DeRouchey, J. M., Nelssen, J. L. & Dritz, S. S., (2012) “Determining the effects of standardized ileal digestible tryptophan:lysine ratio and tryptophan source in diets containing dried distillers grains with solubles on growth performance and carcass characteristics of finishing pigs”, Kansas Agricultural Experiment Station Research Reports 1(10), 189-203. doi: https://doi.org/10.4148/2378-5977.7090
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