Mechanism of delivery of dried distillers grains with solubles (DDGS) in beef cattle overwintering diets

Team:

Project Leader:  Dr. Kim Ominski, Dept. Animal Science, University of Manitoba Email: k_ominski@umanitoba.ca
Co-Investigators: Jennilee Bernier (Graduate Student), Dr. Karin Wittenberg (U of M)

Funding:

ARDI

Goal:

The goal of this study is to identify cost effective methods for the delivery of a protein supplement such as dried distillers grains with solubles to cattle on forage based diets. This information would be relevant to cattle on summer pasture or extended grazing situations, or any other cattle management system that has limited feeding infrastructure.

Objectives:

1) To compare the effectiveness of various strategies for delivering DDGS in cattle diets to meet cattle protein and energy requirements when fed low quality diets in a confined environment
2) To compare and evaluate the two highest-rated methods of delivery from 1) within an extensive cattle pasture overwintering system such as is typically used by cattle producers in Manitoba
3) To determine the potential for DDGS supplementation to increase pathogen shedding in a confined feeding system based on the mechanism of delivery

Design:

For the trial cattle will be fed a relatively mature, low protein forage and they will be offered wheat-based DDGS in one of four ways: 1) in loose form once daily; 2) in loose form once every three days; 3) as a cube once every three days; and 4) in a molasses block that is always available to cattle.