Effects of Alcohol Treatments on Utilization of Soybean Meal by Lambs and Chicks

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Abstract
Two lamb nitrogen (N) balance studies and two chick bioassays were performed to evaluate utilization of alcohol-treated soybean meal (SBM). In the first study, 30 and 50% (v/v) propanol, 30% (v/v) isopropanol and 50% (v/v) ethanol treatments did not improve utilization of SBM protein in corn cob-corn starch-SBM diets fed to lambs. However, in the second study, incorporation of 40% (v/v) propanoltreated SBM in a corn cob-corn-SBM diet improved SBM utilization in that lambs retained more N, excreted less N in urine and had lower blood urea N (BUN) levels. Addition of 1% sodium bicarbonate (NaHCO3) to the diet nullified the positive effect of the propanol treatment. Replacing dietary starch with dextrose as a source of readily available carbohydrate on an equal glucose unit basis tended to improve N retention and to lower urinary N and BUN levels. Replacement of starch with dextrose did not affect N retention by lambs fed SBM or SBM treated with 40% (v/v) propanol. Substitution of alcohol-treated SBM for untreated SBM in a practical corn-SBM diet fed to chicks beginning at 8 d of age did not affect animal performance. Alcohol treatment did not affect protein efficiency ratio of chicks fed a starch-dextrose basal diet in which SBM provided 10% crude protein (CP). Copyright © 1983. American Society of Animal Science . Copyright 1983 by American Society of Animal Science.

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