Influence of Corn Kernel Traits on Digestibility and Ruminal Fermentation

Authors

Matt K. Luebbe, University of Nebraska - LincolnFollow
Galen E. Erickson, University of Nebraska-LincolnFollow
Terry J. Klopfenstein, University of Nebraska-LincolnFollow
Wayne Fithian, University of Nebraska-Lincoln

Date of this Version

January 2005

Comments

Published in 2005 Nebraska Beef Cattle Report. Copyright © 2004 The Board of Regents of the University of Nebraska.

Abstract

A metabolism trial was conducted to determine the influence of corn kernel traits on digestibility. The seven hybrids used in this study were the same as those fed in a feedlot performance trial where kernel traits were correlated to feed efficiency. These hybrids were selected to represent a range within and among kernel traits. There were no differences in total tract digestibility for hybrids that have softer endosperm. Ruminal pH parameters and intake behavior were not found to be different for animals in the metabolism trial. However, differences did exist among hybrids for volatile fatty acid production. VFA production over time was similar for all treatments with a peak in total VFA concentrations five to seven hours after feeding.