Wet Milling Corn Corn Cleaned Steeping Steep water Wet corn Germ Grind Degerm Condensed Wash Oil Germ Corn bran Starch & Protein meal Ethanol Corn Corn gluten sweeteners meal Corn gluten feed

Components of corn Starch 61.0% Corn oil 3.8% Protein 8.0% Fiber 11.2% Moisture 16.0% Wet mill, lbs/bu Starch 31.5 Gluten feed 12.5 Gluten meal 2.5 Oil 1.6 Gluten feed Gluten meal Germ meal Protein 21 60 20 Fat 2.5 2.5 2 Fiber 8 1 9.5

Dry Milling Corn Corn Ground Heated + Water Enzyme (Starch Dextrins Glucose) Fermentation Yeast enzyme (Sugar Ethanol) Stillage Ethanol Wet grains Centrifuge Distillation WDGS Solubles

Components of corn Starch 61.0% Corn oil 3.8% Protein 8.0% Fiber 11.2% Moisture 16.0% Dry mill Ethanol 2.7 gal Dry distill grains 18 lbs CO2 18 lbs Dist grains with sol Dist Sol Protein 27 29 Fat 11 9 Fiber 9 4

Iowa Ethanol Production (millions of gallons) U.S. Ethanol Production (millions of gallons)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Facts and FAQs About E85 Teaching Ethanol For Technicians Ethanol Production Iowa Ethanol Plants Grower Opportunities Ethanol Links Copyright ©2004 Iowa Corn Promotion Board/Iowa Corn Growers Association. All Rights Reserved. | Privacy Policy | Contact Contact Search Ethanol Production Information Choose a Chart: - Iowa Ethanol Production - U.S. Ethanol Production - Iowa Corn Used for Ethanol - U.S. Corn Used for Ethanol   PID:123 Site design and hosting by Freese-Notis Global Internet Iowa Ethanol Production (millions of gallons)                                                                                                                                                                                                                                                                                                                                         Source: Iowa Corn Promotion Board TOP U.S. Ethanol Production (millions of gallons) Iowa Corn Used for Ethanol (millions of bushels) U.S. Corn Used for Ethanol (millions of bushels)

David J. Schingoethe Dairy Science Department South Dakota State University

Corn Distillers Grains for Finishing Cattle As protein source, 8 to 15% of ration DM As an energy source, > 15% of ration DM May reduce acidosis because highly digestible fiber in place of starch Wt gains & feed efficiency of cattle fed wet distillers grains usually better than with corn Wt gains and feed efficiency of cattle fed dry distillers grains usually similar to corn At 15 to 25% of ration DM, wet distillers grains has it greatest value Protein and energy in distillers grains have value DM intake may be reduces when wet distillers grains fed @ > 30% of ration DM Probably feeding excess protein Feeding excess P P does not have value for finishing cattle fed corn

Corn Distillers Grains for Cattle Fed Roughages Growing cattle – Cows – Calves Energy, protein and P have value Complements roughages Less starch – No negative associative effects Energy should be greater than corn Feed to supply supplemental needs for protein and energy