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Animal Industry Report

Extension Number

ASL R2288

Topic

Beef

Summary and Implications

Developing breeding heifers were fed two levels of modified distillers’ grains with solubles (MDGS), 17.7 and 32.7% of ration dry matter, in combination with haylages over a 122 day period. Heifers that received 32.7% MDGS in their diet started on feed significantly slower and gained significantly less during the first 46 day period. However, during the remainder of the test the 32.7% MDGS heifers gained significantly faster while consuming less feed than either the controls or the 17.7% MDGS treatment group. After 122 days on trial there were no significant difference in ADG or dry matter conversion between the control or treatment groups, but the 32.7% MDGS group consumed significantly less dry matter per day. There were no significant differences between treatment groups for either synchronized AI pregnancy rate or overall pregnancy rate.

Copyright Holder

Iowa State University

Language

en

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