Urinary Allantoin Excretion of Finishing Steers: Effects of Grain Adaptation and Wet Milling Byproduct Feeding

Authors

Ryan Mass, University of Nebraska-Lincoln
D. J. Jordon, University of Nebraska-Lincoln
Todd Milton, University of Nebraska-Lincoln
Terry J. Klopfenstein, University of Nebraska-LincolnFollow
Rick Stock, Cargill Corn Milling, Blair, Nebraska

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

A metabolism trial investigated microbial protein supply for finishing cattle. In Phase I, cattle were adapted to a dry-rolled corn diet. Urinary allantoin excretion was positively correlated with TDN supply. In Phase II, cattle were fed that diet or diets with a portion of the corn replaced by one of two levels of the corn wet milling byproducts steep liquor or distillers’ solubles. Byproducts inclusion did not increase microbial crude protein supply, as measured by urinary allantoin excretion. Rumen pH also correlated with microbial crude protein supply.