Iowa Renewable Fuels Association (IRFA)

Corn distillers dried grains/solubles (DDGS)


Corn distillers dried grains/solubles (DDGS) are recovered in the distillery and contain all the nutrients from the incoming corn minus the starch. Thus, the DDGS has at least threefold the nutrients as the incoming grain. Since the stillage is recycled, the ratio of these more valuable amino acid types continues to increase so that eventually they represent approximately 16% of the final DDGS's amino acid content. No other feed ingredient results from such a great percentage of microbial products and their back stocking. DDGS typically analyzes at 27% protein, 11% fat and 9% fiber.

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