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
Highlights
Volume 0 Issue 10 Swine Day (1968-2014)
Results suggest a linear decrease in ADG and ADFI along with poorer F/G with increasing total sulfur amino acid (TSAA) levels
No effect was observed on any carcass criteria
Summary
Volume 0 Issue 10 Swine Day (1968-2014) Dietary total sulfur amino acid requirement for optimal growth performance and carcass characteristics in finishing gilts Follow this and additional works at: https://newprairiepress.org/kaesrr
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