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Co-product Feeds are “Taylor Made” for Sheep. Jeff Held SDSU Extension Sheep Specialist. Co-products for Livestock. Ethanol industry coproducts (dry-milling) Distillers Grain w/solubles (DDGS, MDGS, WDGS) CCDS (“syrup”) Corn sweetner industry co-products (wet-milling)

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Co-product Feeds are “Taylor Made” for Sheep

Jeff Held

SDSU Extension Sheep Specialist


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Co-products for Livestock

  • Ethanol industry coproducts (dry-milling)

    • Distillers Grain w/solubles (DDGS, MDGS, WDGS)

    • CCDS (“syrup”)

  • Corn sweetner industry co-products (wet-milling)

    • Corn Gluten Feed (CGF)

  • Soyhulls (SH)

  • Beet Pulp

  • Wheat Middlings (“Midds”)


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Why consider co-products for sheep

  • Cost

    • Energy and crude protein (cents/lb)

    • Forage substitution

  • Animal performance

    • Growth and lactation


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Co-product Concerns and Conditions

  • Handling and Storage

  • Unique Nutrient Profiles

    • Minerals -phosphorus, sulfur, copper

    • Level of fat


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What are dried distillers grains with solubles?

  • The dry-mill ethanol production process uses only the starch portion of the corn, which is about 70% of the kernel. All the remaining nutrients – protein, fat, minerals, and vitamins – are concentrated into distillers grain.

  • A bushel of corn will produce at least 2.8 gallons of ethanol and 18 pounds of distillers grain.


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  • Soyhulls

  • 10-12 % Crude Protein

  • 0.2 % phosphorus

  • 0.2 % sulfur

  • 2.0 % fat


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  • Beet Pulp

  • 7 % Crude Protein

  • 0.1 % phosphorus

  • 0.2 % sulfur

  • 0.6 % fat


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  • Wheat Middlings

  • 18 % CP

  • 1.05 % phosphorus

  • 0.21 % sulfur

  • 3.5 % fat

  • 25 % starch


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Summary - Coproduct Nutrient Composition

**Expect significant plant to plant variation for CP and minerals


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DDGS - Variability

From University of Minnesota DDGS website www.ddgs.umn.edu/nutrient%20profiles/album-us/index.htm


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Common Characteristics of Co-products

  • Energy and protein rich feeds

    highly fermentable fiber carbohydrates (NDF, ADF)

    low starch content reduces acidosis risk

  • Limitations on livestock diet formulation

    mineral profile

    fat content

  • Practical storage, handling and local availability will determine feasibility for incorporation into a feeding system.

  • Sheep producers should consider dry stored coproducts that are economically valued.

  • These coproducts are valued as energy feeds versus corn.

    DDGS – practical and cost effective



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US Ethanol Production

35 mil tons DDGS

Renewable Fuels Association, 2009


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Where does DDGS fit into Sheep Diets?????


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DDGS Research-Lactating Ewes

  • Protein- suckling lamb growth response similar for DDGS and SBM supplemented diets (Univ. of Kentucky)

  • Energy- DDGS substituted for corn at 2 lb per head, 25 % of diet DM resulted in a slight positive performance response in triplet reared lambs. (Iowa State Univ.)

  • Recommended maximum inclusion:

    • 2 lb/hd/d or 25% of dietary DM


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South Dakota State UniversityDDGS Research-Lactation Diets

  • SDSU Lactation Trial

    • DDGS and soyhulls replacing hay to increase energy density during lactation

      Results:

    • Higher milk production

    • Higher lamb gain

    • Excellent health status


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DDGS Research-Lamb Mixed Diets

  • Few studies with lambs fed DDGS in US

    • SDSU conducted 1st feeding trial in 2004

    • Response to producer inquiry

  • Restrictions include meal form of product and mineral considerations – phosphorus

  • Designed simple mixed diet formulation guidelines for on-site application

    • SDSU Extension publication

      EXEX 2053



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Whole Corn

MDGS

Liquid Supplement


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South Dakota State UniversityDDGS Research-Lamb Diets

  • SDSU Lamb Finishing Trials*

    • DDGS substitution for SBM

    • DDGS and corn or soyhulls

      • Mixed ingredient diets

      • Completely pelleted

        *ad-lib feeding management



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Using Dried Distillers Grains as a Protein and Energy Source in Market Lamb Diets

T. Hulls, A. Bartosh, R. Zelinsky, J. A. Daniel and A. Wertz-Lutz


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Experimental Diets in Market Lamb Diets

Diets were formulated to be 14.5 % crude protein and isocaloric


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Growth Performance in Market Lamb Diets


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Carcass Merit in Market Lamb Diets


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Conclusions –Huls., et. al. in Market Lamb Diets

  • DDGS can be used as a protein and energy source in lamb finishing diets

    • Excellent lamb growth performance and carcass merit

    • Excellent health status

  • However to be most cost effective should evaluate DDGS in a mixed ingredient diet


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The effect of corn or soybean hull diets supplemented with DDGS in mixed diets on finishing lamb performance and carcass merit

R. Zelinsky, J. A. Daniel, and J.E. Held


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Experimental Design DDGS in mixed diets on finishing lamb performance and carcass merit

  • 80 white-faced and brockle-faced wethers and ewe lambs

  • Conducted December 23, 2004 at 92 days of age (range 79 to 105) and fed for 64 days after a 7-d adaptation period

  • Eight feeding pens with 10 lambs per pen

  • Feed disappearance was recorded to calculate intake and feed to gain ratio. Average daily gain was determined in 3 wk intervals.

  • Lambs were slaughtered and carcass data collected at a commercial packing plant. (Iowa Lamb Corp)


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Experimental Diets DDGS in mixed diets on finishing lamb performance and carcass merit

  • Diets were formulated to contain 14 % crude protein


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Growth and Performance Data DDGS in mixed diets on finishing lamb performance and carcass merit


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Corn Based (L) Soyhull Based Diets (R) DDGS in mixed diets on finishing lamb performance and carcass merit


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Carcass Data DDGS in mixed diets on finishing lamb performance and carcass merit


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Conclusions - Zelinsky, et.al. DDGS in mixed diets on finishing lamb performance and carcass merit

  • DDGS was shown to be an excellent choice in mixed lamb finishing diet formulation.

    • ADG at 0.78 lb/d met or exceeded expectations for growth performance.

  • Residual feed (waste) for the soybean hull diet was approximately 40% of the corn diet.

  • Soybean hulls fed to lambs consistently have higher intake compared to grain based diets.


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DDGS Considerations - Lamb Feeding DDGS in mixed diets on finishing lamb performance and carcass merit

Residual feed waste in mixed ingredient diets

- Adds more labor and feed cost

- Diet sorting alters animal nutrient consumption

Diet formulation must account for high levels of:

Phosphorus - protect against urinary calculi

- maintain Ca:P at 2:1 (P < 0.4%)

- add ammonium chloride at 0.5% of dietary DM

Sulfur – total dietary levels >0.3% risk for (PEM)

- add 10 mg thiamine per lb of dietary DM


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DDGS Recommendations- DDGS in mixed diets on finishing lamb performance and carcass meritLamb Feeding

  • Up to 20% of dietary DM is practical

    • 16 % CP growing or finishing mixed diet.

  • Mixed diet with DDGS is ideal for bunk fed lambs, can use in ad lib feeding system.

  • Must have high management skills

  • DDGS and pelleted soyhulls compliment

    • Ca:P ratio and lower residual feed versus corn/DDGS


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DDGS Summary DDGS in mixed diets on finishing lamb performance and carcass merit Lamb Feeding

  • DDGS use in lamb finishing diets promotes excellent lamb growth performance, carcass merits and health status.

  • DDGS and soyhulls can serve as the sole energy, protein and fiber sources in lamb finishing diets.


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For more details on SDSU Sheep DDGS Research DDGS in mixed diets on finishing lamb performance and carcass merit

Principal Investigators:

Zelinsky, R.D., Wertz-Lutz, A.E. and J.E. Held

SDSU Animal and Range Sciences

http://ars.sdstate.edu/sheepext/publications.htm

EX EX 2052 and 2053


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