ABSTRACT
Utilization of ethanol coproducts to reduce diet costs has become important as more U.S.-grown corn is used in the fuel ethanol industry. While the majority of the distillers dried grains with solubles (DDGS) that is produced is used in diets fed to ruminants such as beef cattle (Chapter 12) and dairy cows (Chapter 13), DDGS has also been used in the feeding of swine for more than 50 years. However, new production technologies and new corn varieties have changed the gross composition of the grain, which now contains less protein and more fat than in the past. Please refer to Chapters 5 and 8 for details on ethanol production and DDGS composition. The changes in the composition of corn that have been observed during the past decades inuence DDGS composition and may also change the response of pigs to diets containing DDGS. New production technologies in ethanol plants such as front-end fractionation or back-end separation have resulted in the production of a number of novel coproducts from the ethanol industry. Research to measure the nutritional value of these products has been conducted in recent years. Considerable new information about feeding ethanol coproducts to swine has, therefore, been generated during the last decade and currently much of this information is being implemented in the swine industry. The objective of this chapter is to summarize current knowledge about feeding ethanol coproducts to swine.
