About this report:
Few studies have been done to determine the Digestible Energy (DE) and Metabolizable Energy (ME) content of corn distillers dried grains with soluble (DDGS) in growing pig diets. This research will help develop better prediction equations and provide nutritionists more reliable tools to determine the energy contents of ethanol coproducts. This technology will help improve the use of corn ethanol coproducts in the pork industry.
DDGS have typically contained a fairly fixed amount of ether extract (EE), but with the majority of U.S. ethanol plants implementing oil extraction technology, DDGS now have a wider range of EE than they have previously. Oil contains around 2.25 more times the energy than carbohydrates; removal of the corn oil has implications on the economic value and dietary inclusion rates of the DDGS.
Although ether extract may be a good indicator of the Gross Energy in the corn DDGS samples evaluated in this study, it is not a primary indicator of Digestible Energy or Metabolizable Energy. The data also indicate that dietary fiber, namely ADF or TDF, is more important in determining the Digestible Energy or Metabolizable Energy value of DDGS to growing pigs.
This information helps livestock producers make the best nutritional and economic information regarding corn DDGS in swine diets. It also helps ethanol processors understand the value and impact of DDGS for livestock producers.
USDA-ARS National Laboratory for Agriculture and Environment
University of Minnesota
Minnesota Corn Research & Promotion Council
POET Nutrition, LLC
For questions or additional information, please contact AURI at 800.279.5010.