Document Type

Report

Report Number

91-13

Publication Date

1991

Keywords

protein, forage, sheep

Summary

Twenty-four crossbred wethers (88 ± .44 Ib) were utilized to determine optimal level of dietary CP when corn gluten meal (CGM) and soybean meal (SBM) based supplements were fed alternate days. Diets were arranged in a 2 x 3 factorial design with SBM and CGM fed at 8, 9 or 10% dietary CP. Supplements were top dressed on ground corn stalks at a rate of two times the daily required amount (19.78% DM basis). The collection term consisted of an 8-day total feces and urine collection. DM1 and DDMl were improved (P<.01) when CGM was fed and as dietary CP was increased by either supplement. Dry matter digestibility (DMD) decreased (P<.05) as dietary CP level increased. Neutral detergent fiber digestibility (NDFD) did not differ (P>.05) for protein source or dietary CP level. Nitrogen digestibility (ND) increased (P<.05) with increasing dietary CP level. Nitrogen retention (NR) was improved by CGM and increasing dietary CP level and an interaction occurred (P< .10) between protein source and dietary CP level. Increased NR on CGM diets suggests providing ruminal escape N sources is beneficial when feeding CP supplements on alternate days.

Number of Pages

4

Format

application/pdf

Language

en

Publisher

South Dakota State University

Rights

Copyright © 1991 South Dakota State University.

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