USDA Reports
Estimating the Substitution of Distiller's Grains for Corn and Soybean Meal in the U.S. Feed Complex. USDA Economic Research Service, October 2011. Linwood A. Hoffman and Allen Baker.
Ethanol Co-Product Use in U.S. Cattle Feeding - Lessons Learned and Considerations. USDA Economic Research Service, April 2009. Kenneth H. Mathews, Jr., and Michael J. McConnell.
New Technologies in Ethanol Production. USDA, Agricultural Economic Report Number 842, February 2007. C. Matthew Rendleman, and Hosein Shapouri.
Other Publications
A Guide to Distiller's Dried Grains with Solubles (DDGS), 3rd Ed., U.S. Grains Council, published Sep. 2012 (406-pg pdf).
Using Distillers Grains in the U.S. and International Livestock and Poultry Industries (259-pg pdf) - Published by Midwest Agribusiness Trade Research & Information Center, Ames, IA.
Biofuel Co-products as Livestock Feed - Opportunities and Challenges - Edited by Harinder P.S. Makkar. FAO, 2012, Rome, Italy.