Wet distillers’ grains plus solubles make a good supplement in cow-calf operations, but the product spoils rapidly, especially in warmer weather. University of Nebraska researchers note that WDGS will keep for extended periods if oxygen is excluded, but the high moisture content makes it difficult to pack and store in a bunker or silo bag. The researchers tested different mixtures of tub-ground grass hay, wheat straw, alfalfa hay and corn stalks with WDGS and found that adding roughage with WDGS and excluding oxygen can minimize spoilage during extended storage. They recommend minimum levels of 15 to 25 percent roughage with WDGS for bagging. For bunker storage, they suggest 40 percent for grass hay and 30 percent for wheat straw and corn stalks.