Distillers Grains with Solubles for Feedlot Cattle - Finishing Performance, Lipid Metabolism, and Ethanol Greenhouse Gas Balance
نویسندگان
چکیده
Feedlot cattle performance data from 20 trials (n = 350 pen means; representing 3,365 steers) evaluating dietary inclusion of corn wet distillers grains plus solubles (WDGS) were summarized with two meta-analyses. The objective of this study was to evaluate the effects of WDGS inclusion level with dry-rolled corn (DRC) or a blend of DRC and high-moisture corn (HMC) for either calf-feds or yearlings on WDGS feeding value. The feeding value of 10 to 40% of diet DM as WDGS was superior to corn and averaged 150-130% of the corn replaced. Feeding WDGS with diets containing HMC resulted in G:F superior to steers fed DRC with or without WDGS. The feeding value of WDGS was greater when WDGS replaced DRC compared with a DRC and HMC blend. The feeding value of WDGS was greater when fed to yearlings than for calf-feds. The biological mechanisms responsible for WDGS feeding value with different corn processing types is not well understood.
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 ...
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