Continuing development of distillers dried grain with solubles products that are available in the market is influencing the use of DDGS in feed, according to a study by Iowa State University.

The study finds that newer-generation DDGS products have a higher optimal inclusion rate, reaching the maximum allowable rate of 20 percent for swine.

When traditional DDGS is introduced in a feed ration, total feed cost declines by 2.64%, or a reduction of $0.29 per cwt of feed. This translates into a $2.17 per head savings in feed cost in a feeder-to-finish operation.

Using newer-generation DDGS reduces feed cost by 9.88%, or a reduction of $1.08 per hundredweight of feed, saving feeder-finisher operations $8.06 per head. This study suggests that as a substitute product, the price of DDGS will track the price of both corn and soymeal.

Finally, this study clearly points to the critical importance of DDG product innovation to promote widespread and optimal use of DDGS as a feed ingredient, thereby alleviating the food-feed-fuel trade-off.

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