Abstract
Finishing gilts (initially 163 lb) were fed .58% total lysine (.50% apparent digestible) and total sulfur amino acid (TSAA) concentrations of .26, .285, .31, .335, and .36% (.225 to .325% apparent digestible). These values represent TSAA: lysine ratios of 45, 50, 55, 60, and 65%. Results suggest a linear decrease in ADG and ADFI along with poorer F/G with increasing TSAA levels. However, gilts fed .285% TSAA (50% of lysine) had the best ADG and F/G. No effect was observed on any carcass criteria. Based on the results of this study, the TSAA requirement is not greater than .285% total (.25% apparent digestible) or approximately50% of the lysine requirement.; Swine Day, Manhattan, KS, November 21, 1996
Keywords: Swine day, 1996, Kansas Agricultural Experiment Station contribution, no. 97-142-S, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 772, Swine, Finishing pigs, Growth, Total sulfur amino acids
How to Cite:
Loughmiller, J. A., Tokach, M. D., Titgemeyer, E. C., Kim, I. H., Bergstrom, J. R., Smith, J. W., II, Goodband, R. D. & Nelssen, J. L., (1996) “Dietary total sulfur amino acid requirement for optimal growth performance and carcass characteristics in finishing gilts”, Kansas Agricultural Experiment Station Research Reports 1(10), 133-135. doi: https://doi.org/10.4148/2378-5977.6545
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