Analyze distillers grains for energy

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Corn distillers grains — a byproduct of ethanol production — is often fed wet to avoid drying cost. However, a South Dakota State University study reported in the June Journal of Dairy Science shows that wet distillers grains contained 10 percent to 15 percent more energy than the National Research Council's 2001 standard for dried distillers grains. The difference in energy content may be due to higher energy values in all distillers grains available today — both wet and dried — or it may indicate that wet distillers grains contain more energy than dried. More research is needed to understand the energy difference. Until then, it’s a good idea to test the nutrient content of wet distillers grains for energy, fat, protein and phosphorus before feeding.

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