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Processing of Pelleted Feeds Using Pelleted DDGS as an Ingredient

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Applied Engineering in Agriculture. 29(1): 89-92. (doi: 10.13031/2013.42522) @2013
Authors:   A. C. Fahrenholz, K. C. Behnke, L. J. McKinney
Keywords:   DDGS, Feed production, Pelleting

An experiment was conducted to evaluate the effects of including pelleted and re-ground distillers dried grains with solubles (DDGS) on pellet durability and pellet mill performance in pelleted corn-soy based swine diets. Pelleted and re-ground DDGS have the potential to greatly improve handling and shipping of DDGS because of improvements in material flow and bulk density. The pellet manufacturing experiments were completed at the Department of Grain Science and Industrys Feed Research Facility at Kansas State University. Pellet durability index (PDI), electrical energy consumption, production rate, and bulk density served as the response criteria. The levels of DDGS evaluated were 10%, 20%, and 30%. Diets containing pelleted and re-ground DDGS were compared to diets with unpelleted DDGS added at the same levels and to a control diet with no added DDGS. Concerning PDI, the diets containing pelleted and re-ground DDGS showed no significant differences from the control at any inclusion level, while the diets containing unpelleted DDGS at 20% and 30% had significantly lower pellet durability than the control. Concerning the production response criteria, the diets containing pelleted and re-ground DDGS were superior or equal to treatments containing unpelleted DDGS. The data demonstrates that pelleted and re-ground DDGS do not negatively impact pellet durability or pelleting performance, and in fact may offer slight benefits, and therefore can be considered as an option for improving some aspects of working with DDGS.

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