1. Dr. Dan Morrical Iowa State University 515-294-0847 morrical@iastate.edu Corn Processing Co-products in sheep diets Buckeye Shepherds Symposium

3. References Dr. M’s web page http://www.ans.iastate.edu/faculty/index.php?id=morrical Byproduct feed prices http://agebb.missouri.edu/dairy/byprod/bplist.asp

4. What products are available Corn gluten feed wet or dry Corn gluten meal Dried distillers grains Modified distillers grains Wet distillers grain Condensed distillers solubles

5. Nutrient Content Must adjust for water content Dry matter may be 30% to 90% do not want to pay too much for water

6. Nutrient Content Reduced starch equals Increased protein and mineral density

7. Corn Processing Co-products* CGFDDGSCORN DM90%90%87% TDN 72% 80%77% CP 18%27%8.5% Ca.05%.20%.02% P 1.0%.72%.35% * As fed basis

8. Corn Processing Co-products* BranGermDDGHP DM92*%93.1%91.9% TDN 84% 102%81.7% CP 12.6%15.6%42.5% Ca.04%.02%.01% P.56%1.4%.37% Fat7.5%17.9%3.0% * As fed basis

9. Lamb finishing diets Concerns: Calcium:phosphorous ratio Restrict CGF to 10-15% of diet example:

10. Example ration Corn 73.5% Prot. Pel. 10% CGF 15% Limestone 1% Salt.5% DM 88% CP13.1% TDN72.4% Ca.77% P.46% Ca:P1.67:1

11. Cost Comparison, 13% CP Corn $4.50 Protein $450 CGF $150 Cost $169/t 89% of standard per lamb $4.75 per ewe $7.13 84:16 corn Protein pellet cost $188

13. ISU CGF Study 1995 Corn Prot.Gluten Lamb Gain*.88.70 Feed intake3.63.5 Feed Conversion* 4.15.0 Cost/ton162129 Feed cost of gain $33.21$32.25

14. DDGS in Lamb Rations U. Kentucky 5-10% DDGS Growth promoter Reduced intake above 10% Precautions: Calcium phosphorous ratio Fat

15. Example ration Corn 80% Prot. Pel. 10% DDGS 8.5% Limestone 1% Salt.5% Cost $168 DM 88% CP13.0% TDN72.4% Ca.78% P.47% Ca:P1.67:1

16. Byproducts in Ewe Rations Fit best with low quality roughage sources Example: Cornstalks and CGF

17. Example rations Feed EGLGLact. Cornstalks49.7%46.5%21% WDDGS49.7%46.5%42% Alfalfa21% Corn6.5%10% SBM5% Limestone.6%.5%.5%

18. DDGS Better protein quality higher escape protein ? ISU Research

19. ISU Research Lactating ewes Control Diet 5 lbs. alfalfa hay (19.6 CP, 63 TDN) 3.2 pounds whole corn DDGS 5 pounds alfalfa 2 pounds DDGS 1 pound cracked corn Isocaloric but not isonitrogenous

20. Control Diet 5 lbs. alfalfa hay (19.6 CP, 63TDN) 3.2 pounds whole corn DDGS 5 pounds alfalfa 2 pounds DDG 1 pound cracked corn Isocaloric but not isonitrogenous

22. Color Extremes of DDGS High Quality, Highly Digestible DDGS Lower Quality, Less Digestible DDGS

23. Results 02 Lamb GainsCornDDGS Twins.73.70 Trips.64.63

24. Results 03 Lamb GainsCornDDGS Twins.76.75 Trips.56.63

25. Results 03 Ewe GainsCornDDGS twins-7.8-5.6 trips-12.0-12.8 Condition score twins-.1-.17 trips0.0+.07

26. Using Co-products Price Method of mixing and handling Location Shelf life/storage

27. Options Split loads Work with cattle feeder Use the dry product Cheapest in summer put up bag of cornstalks and wet distillers

28. Precautions Product will set up do to high fat content High sulfur content may result in polios, >50% DDGS diets Stud rams and UC Listeria

34. Questions