Distillers Grains and Livestock are Important to Ethanol Energy and Greenhouse Gas Balance
نویسندگان
چکیده
A life cycle assessment of the impact of distillers grains plus solubles (DGS) on mitigation of energy and greenhouse gas (GHG) emissions comparing corn ethanol to gasoline demonstrates the importance of feeding wet DGS (WDGS) to feedlot cattle to optimize the environmental benefit of ethanol production relative to gasoline. Ethanol produced in Nebraska has a superior environmental impact compared to ethanol produced in Iowa or Texas.
منابع مشابه
Effect of distillers grains moisture and inclusion level in livestock diets on greenhouse gas emissions in the corn-ethanol-livestock life cycle
A model was previously developed (Biofuel Energy Systems Simulator; www. bess.unl.edu) to predict greenhouse gas (GHG) emissions and net energy yield when ethanol is produced from corn. The model also predicts feedlot cattle, dairy cattle, and swine performance and feed replacement value of ethanol coproducts. Updated equations that predict performance of feedlot cattle fed 0 to 40% of dietary ...
متن کاملUtilization of DDGS by Cattle
Distillers grains with solubles (DDGS), the major byproduct of ethanol production, is a good protein and energy feed for cattle. The DDGS can be fed wet or dried with animal performance usually similar when fed as wet or dried products; however, some research results favored the wet products. Cattle diets can contain DDGS as replacements for portions of both concentrates and forages, although D...
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BACKGROUND Although the system for producing yellow corn grain is well established in the US, its role among other biofeedstock alternatives to petroleum-based energy sources has to be balanced with its predominant purpose for food and feed as well as economics, land use, and environmental stewardship. We model land usage attributed to corn ethanol production in the US to evaluate the effects o...
متن کاملDistillers’ Grains for Cows: Boon or Bust?
The United States’, and especially Iowa’s, ethanol industry has increased dramatically resulting in millions of tons of the distillers grains co-products produced annually. For every one bushel of corn processed there is a yield of about 2.8 gallons of ethanol and about 17 to 18 pounds of distillers’ grains (DGs) on a dry basis. Although one cannot be certain of future markets, it appears that ...
متن کاملDistillers Dried Grains Plus Solubles Utilization by Livestock and Poultry
Increased production of corn based ethanol and the resulting increase in availability of distillers dried grain with solubles (DDGS) has a number of implications for the U.S. livestock industry and for the production of traditional livestock feed crops. Some of those implications are examined here. First, and most importantly, the potential size of the domestic market for DDGS is evaluated in d...
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