Corn Dried Distillers’ Grains with Solubles (DDGS) is the feed product obtained after distillation of the ethyl alcohol from the yeast fermentation of corn. The coarse grain fraction of the whole stillage is separated by centrifugation and dried by methods employed in the grain distilling industry to the specifications listed below. The feed is rich in cereal and residual yeast proteins, energy, minerals, vitamins, and growth factors. The product is moderately coarse, friable, and golden to brownish colour. Fermentation of the starch, which is about 2/3 of the weight of cereal grains, results in a threefold concentration of non-starches such as proteins, fats, minerals, and vitamins in the residual mash. In addition to these nutrients, protein, vitamins, and growth factors are further synthesized by the growing yeast cells during the fermentative process.

DDGS are handled in a manner like other dry feed bulk commodities; namely stored in free-flowing overhead bins, or some form of sheltered flat storage. The product flows easily or can be conveyed from bins, and is also handled by the usual front-end loader technique. Corn DDGS can be combined into a total mixed ration, or top dressed and fed accordingly.

DDGS are an excellent protein and energy source for all ruminants, and can readily comprise 20-30% of the total ration dry matter. In the rumen, Digestible Intake Proteins (DIP) are degraded by microbes, while the Undegradable Intake Protein (UIP) remains intact and “by-passes”, becoming available for digestion and absorption in the lower tract. Protein in Corn DDGS is a natural protein and recognized as a feedstuff with one of the higher proportions of by-pass protein. Corn DDGS are also an excellent source of energy and other essential nutrients. Like all feedstuffs, Corn DDGS should be properly incorporated into a ration/complete feed, or preferably a total mixed ration (TMR) for ruminants. Consult your nutritionist and/or veterinarian to ensure the proper balance and levels of the required nutrients in the complete ration.