Document Type

Report

Report Number

96-2

Publication Date

1996

Keywords

condensed corn distillers solubles, growing diets, steers

Summary

A trial was conducted as a randomized block design to assess the effects of condensed corn distillers solubles (CCDS) on performance of steer calves (n = 200) fed 40% concentrate, dry rolled corn-hay based growing diets. CCDS was included at 0 (MSBM), 5 (5CCDS1, 10 (IOCCDS), or 20% (20CCDS) of diet DM, replacing soybean meal, molasses, and corn. A corn silagetsupplement diet was also included (SIL). Dry matter intakes at higher CCDS levels were lower than that of MSBM (P<.05). Average daily gain was not affected (P>.20) and, as a result, feed efficiency (FIG) tended to improve (P = .14). Steers fed SIL consumed less DM (P< .05), gained faster (P<.01), and were more efficient (P< .01) than all other treatments. Ruminal fluid was collected by stomach tube from steers (n=90) at -.5, + 1, +4, and + 7 hours from feeding. Values reported are means across sampling times. Ruminal NH3N and molar proportions of acetate decreased (P< .05) and propionate increased (P< .05) with increasing CCDS level. Despite significance, no discernable pattern was observed for ruminal fluid pH. CCDS was an effective protein and energy source in 40% concentrate corn-hay growing diets. Based on performance, maximum inclusion rate is at least 20% of diet DM.

Number of Pages

3

Format

application/pdf

Language

en

Publisher

South Dakota State University

Rights

Copyright © 1996 South Dakota State University.

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