DDGS Cattle Trough (image) American Society of Agronomy Share Print E-Mail Caption Dinner time! Late-season cattle diet, supplemented with distillers' grains, provides vital protein and energy unavailable in typical forage grass across the south and southeast United States. Credit W. Brandon Smith Usage Restrictions Please use with story only. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.