Effects of Direct- Fed Microbial Supplementation in Different Diets on Performance and Carcass Characteristics of Beef Feedlot Heifers

Authors

Laura F. Prados, University of Nebraska-Lincoln
Nirosh D. Aluthge, University of Nebraska-Lincoln
Curtis J. Bittner Bittner, University of Nebraska-LincolnFollow
F. Henry Hilscher, University of Nebraska-LincolnFollow
Samodha C. Fernando, University of Nebraska-LincolnFollow
Galen E. Erickson, University of Nebraska-LincolnFollow

Date of this Version

2016

Citation

2016 Nebraska Beef Cattle Reports

Comments

© The Board Regents of the University of Nebraska. All rights reserved.

Abstract

The objective of this study was to evaluate performance and carcass characteristics of heifers fed a newly developed direct- fed microbial (DFM), using 336 heifers in a pen study. Th e experiment consisted of feeding corn (CON) or 40% modified distillers grains plus solubles (40MDGS) and presence or absence of DFM added as a top- dress. No significant differences were observed for heifer performance and carcass characteristics due to DFM. Feeding MDGS increased ADG, while reducing F:G compared to CON. The DFM developed for this study did not enhance performance as was hypothesized, while feeding MDGS did.