corn processing co-products in sheep diets buckeye shepherds symposium
DESCRIPTION
Corn Processing Co-products in sheep diets Buckeye Shepherds Symposium. Dr. Dan Morrical Iowa State University 515-294-0847 [email protected]. References. Dr. M’s web page http://www.ans.iastate.edu/faculty/index.php?id=morrical Byproduct feed prices - PowerPoint PPT PresentationTRANSCRIPT
Dr. Dan MorricalIowa State University
Corn Processing Co-products in sheep diets
Buckeye Shepherds Symposium
ReferencesDr. M’s web pagehttp://www.ans.iastate.edu/faculty/index.php?id=morrical
Byproduct feed prices http://agebb.missouri.edu/dairy/byprod/bplist.asp
What products are available
Corn gluten feedwet or dry
Corn gluten mealDried distillers grainsModified distillers grains Wet distillers grain Condensed distillers solubles
Nutrient Content
Must adjust for water content
Dry matter may be 30% to 90%
do not want to pay too
much for water
Nutrient Content
Reduced starch equals
Increased protein and mineral density
Corn Processing Co-products*
CGF DDGS CORN
DM 90% 90% 87%
TDN 72% 80% 77%
CP 18% 27% 8.5%
Ca .05% .20% .02%
P 1.0% .72% .35%
* As fed basis
Corn Processing Co-products*Bran Germ DDGHP
DM 92*% 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%
Fat 7.5% 17.9% 3.0%
* As fed basis
Lamb finishing diets
Concerns:
Calcium:phosphorous ratio
Restrict CGF to 10-15% of diet
example:
Example ration
Corn 73.5%
Prot. Pel. 10%
CGF 15%
Limestone 1%
Salt .5%
DM 88%
CP 13.1%
TDN 72.4%
Ca .77%
P .46%
Ca:P 1.67:1
Cost Comparison, 13% CPCorn $4.50Protein $450 CGF $150
Cost $169/t
89% of standardper lamb $4.75per ewe $7.13
84:16 corn Protein pellet
cost $188
ISU CGF Study 1995Corn Corn Prot. Gluten
Lamb Gain* .88 .70Feed intake 3.6 3.5Feed Conversion* 4.1 5.0Cost/ton 162 129Feed cost of gain $33.21 $32.25
DDGS in Lamb Rations
U. Kentucky
5-10% DDGS
Growth promoter
Reduced intake above 10%
Precautions:
Calcium phosphorous ratio
Fat
Example ration
Corn 80%
Prot. Pel. 10%
DDGS 8.5%
Limestone 1%
Salt .5%
Cost $168
DM 88%
CP 13.0%
TDN 72.4%
Ca .78%
P .47%
Ca:P 1.67:1
Byproducts in Ewe Rations
Fit best with low quality roughage sources
Example: Cornstalks and CGF
Example rations
Feed EG LG Lact.
Cornstalks 49.7% 46.5% 21%
WDDGS 49.7% 46.5% 42%
Alfalfa 21%
Corn 6.5% 10%
SBM 5%
Limestone .6% .5% .5%
DDGS
Better protein quality
higher escape protein ?
ISU Research
ISU Research Lactating ewes
Control Diet 5 lbs. alfalfa hay (19.6 CP, 63 TDN)
3.2 pounds whole corn
DDGS5 pounds alfalfa2 pounds DDGS 1 pound cracked corn
Isocaloric but not isonitrogenous
Control Diet 5 lbs. alfalfa hay
(19.6 CP, 63TDN)
3.2 pounds whole cornDDGS
5 pounds alfalfa2 pounds DDG 1 pound cracked
cornIsocaloric but not isonitrogenous
Color Extremes of DDGS
High Quality,Highly DigestibleDDGS
Lower Quality,Less DigestibleDDGS
Results 02
Lamb
Gains CornDDGS
Twins .73 .70
Trips .64 .63
Results 03
Lamb
Gains CornDDGS
Twins .76 .75
Trips .56 .63
Results 03
EweGains Corn DDGStwins -7.8 -5.6trips -12.0 -12.8
Condition scoretwins -.1 -.17trips 0.0 +.07
Using Co-products
Price
Method of mixing and handling
Location
Shelf life/storage
Options
Split loads
Work with cattle feeder
Use the dry product
Cheapest in summer
put up bag of cornstalks and wet distillers
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
Questions