Evaluation of 1996 Beef Cattle NRC Model and Development of Net Energy Modifiers

Authors

Hushton Block, University of Nebraska-Lincoln
Trey Patterson, University of Nebraska-Lincoln
Terry J. Klopfenstein, University of Nebraska-LincolnFollow
John Moore, University of Florida

Date of this Version

January 2001

Comments

Published in Nebraska Beef Cattle Report 2001, published by Agricultural Research Division, University of Nebraska Cooperative Extension, and Institute of Agriculture and Natural Resources, University of Nebraska–Lincoln.

Abstract

Data from 325 treatment means in 35 previous beef cattle feeding studies were used to evaluate the 1996 NRC model for accuracy of gain predictions and to develop predictions of net energy adjusters for use with the model. The model was found to inaccurately predict gain of cattle fed diets varying in ingredients and energy density. Net energy adjusters were used to achieve accurate prediction of gain for each observation and then equations were developed for predicting the level of net energy adjustment required to improve accuracy of gain prediction.