Tips for feeding distillers’ grains to beef cows
By A. DiCostanzo and G.C. Crawford,
University of Minnesota Beef Team
Minnesota Farm Guide
Distillers’ grains is one of the main co-products of the dry milling process in which corn starch is extracted to produce ethanol. Because starch makes up approximately 67 percent of the kernel, the remaining nutrients: corn bran, oil and protein, and minerals, are concentrated at three times the amount found in corn.
Therefore, distillers’grains is an excellent source of protein and energy (Table 1), although phosphorus, and other elements such as sulfur, are also concentrated.
Depending on the region of the country where the ethanol plant is located, nearness to cattle feeding or dairy operations, plants typically offer one of two types of distillers’ grains: dry distillers’ grains which result from the process of drying the combined streams of distillers’ grains and thin stillage to 10 percent moisture content, and wet distillers’ grains, which results either from not drying the combined streams (distillers’ grains and thin stillage) or drying these streams, and adding back additional thin stillage.FULL STORY