Energy Value of Feeding Distillers in a Forage Diet and Feeding Fresh versus Stored Distillers

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Energy Value of Feeding Distillers in a Forage
Diet and Feeding Fresh versus Stored Distillers
Terry Klopfenstein, B.L. Nuttelman, Crystal
Buckner Animal Science University of
Nebraska-Lincoln
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Reasons For Feeding DGWith Forage

• Crude Protein
• Undegradable Protein
• Energy
• P
• No Negative Assoc. Effects?
• One Size Fits All?

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Paradigm Shifts

• Use Protein for Energy
• Use Excess UIP for DIP

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Escape Protein Values
Source Protein escape
SBM 30 DWG 60-70 DDG 60-70 DS 30
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DDG Composition
aSolubles level calculated using NDF of
solubles (2.3) and 0 solubles DDG
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DDG Protein Digestion, of Entering
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Fat Intake, kg/d
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GainFeed
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DRC or DDG Effects on DMI, NDF Rates and pH
Daily
Item Cont. DRC DDG
DMIh, BWa 1.88 1.69 1.69 DMIt,
BWa 1.88 2.10 2.09 NDF, /hab 4.34 3.43 4.09 pHa
b 6.30 6.22 6.12
aCont. vs Supplements, Plt .05. bDDG vs DRC.
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DDG energy (forage diet)
LOW HIGH SEM
ADG, lb/d corn .81 1.57 .05 DDG .99 1.89 .05 FG
corn 15.9 9.8 .5 DDG 12.8 8.0 .5 DDG 18 - 30
of corn
Loy et al., 2003 Nebraska Beef Report (in press)
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Introduction

• Feedlot diets 100 140 energy value of corn
• DDGS contains 118 to 130 energy value of corn in
  forage diets (Loy et al., 2003)

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Objective

• Determine the energy value of WDGS in comparison
  to DRC in high forage diets

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Materials and Methods Pen Study

• Treatments
• DRC
• WDGS
• NRC-predicted energy and MP requirements
• Isocaloric
• Isonitrogenous
• Targeted 2.25 lb ADG

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Materials and Methods Pen Study Diet Formulation

• 35 Sorghum Silage
• 25 WDGS or 33.6 DRC
• WDGS 127 energy value of DRC
• Grass hay adjusted for WDGS and DRC

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Materials and Methods Pen Study

• 160 crossbred steers (286 18 kg)
• 67 d growing trial
• 10 pens (16 steers/pen)

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Results Performance
DRC WDGS Initial BW, lb 629 629 DMI, lb/d
18 17.6 ADG, lb 2.71 2.88 GF .15
.16
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ResultsEnergy Calculation

• NRC (1996) model
• TDN values
• DRC 83
• Grass Hay 52
• SS 65
• DRC Net Energy adjusters 100
• WDGS 98.96 to account for increased gain

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ResultsEnergy Calculation

• WDGS 108 TDN
• 130 Estimated energy value of DRC
• TDN values (108/83)

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2009 Individual Barn

• Compare energy value of WDGS to DRC at three
  different levels in high forage diets.

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Materials and MethodsIndividual Barn

• 60 cross bred steers (509 28 lb)
• Individually fed 85 d
• Matched pair feeding

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Materials and MethodsIndividual Barn

• 108 TDN value for WDGS
• WDGS
• 15, 25, or 35 inclusion level
• DRC
• 22, 41, and 60 inclusion level

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Materials and MethodsIndividual Barn

• 30 Sorghum silage
• Decreased Grass hay with increasing levels of
  WDGS or DRC
• Soypass and urea

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Energy Value of WDGS
Low Medium High
Corn WDGS Corn WDGS Corn WDGS
DMI 15.6 15.6 16.1 16.1 15.7 15.7 ADG 1.84 1.98 2.
32 2.56 2.47 2.70 GF .119 .128 .144 .159 .158 .17
2
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ResultsIndividual Barn

• Low WDGS (15 )
• 146 Feeding Value
• MED WDGS (25)
• 149 Feeding Value
• HIGH WDGS (35)
• 142 Feeding Value

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Materials and Methods
240 yearling steers (BW 229 16
kg) Backgrounding Late fall to April 21 (144
d) Supplemented 5 lb/hd/d WCGF Smooth brome
grazing April 22 to May 11 (21 d)
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Materials and Methods
Summer grazing May 12 to September 23 (135
d) Treatment groups 1. No supplementation
(CON) 2. MDGS supplementation at 0.6
BW (SUPP)
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Results
a,bMeans with different superscripts differ (P lt
0.001).
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Meta-analysis
ADGSUPP 1.00 kg/d
Griffin et al., 2009
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Wet vs Dry DGS

• Individually fed
• 13, 25, 40 of diet
• Alfalfa forage sorghum silage

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Wet vs Dry DGS1
DDGS2 WDGS2
DMI, lb 17.0 15.4 ADG, lb 2.69 2.48 FG 0.158 0.16
1 (5)3
1Nuttelman. 235 of diet by regression. 3Value vs
DDGS.
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Response to UIP or Fat in DDGS

• Corn gluten meal, UIP
• Tallow, EE
• Equivalent levels to DDGS

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DGS vs Corn

• 130 energy of corn
• 117 TDN _at_ corn 90
• 108 TDN _at_ corn 83
• Fat
• UIP

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Feeding Fresh vs Wet EnsiledWDGS or Solubles and
Residues
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Solubles vs WDGS1
Solubles2 WDGS2
DMI, lb 16.2 15.6 ADG, lb 1.04 1.25 FG 15.5 12.5
1Wilken. 222.5 byproduct, 77.5 cornstalks.
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Solubles vs WDGS1
Solubles2 WDGS2
DMI, lb 11.0 9.87 ADG, lb 1.10 .88 FG 9.70 11.2
1Peterson. 235 byproduct stored with 65 straw.
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Ensiling WDGS with Cornstalks1
Fresh2 Ensiled2
DMI, lb 12.2 14.1 ADG, lb 1.02 1.43 FG 11.95 9.83
1Wilken. 230 WDGS, 70 cornstalks.
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Effect of Ensiling WDGS and Straw1
Fresh2 Ensiled2,3
DMI, lb 9.50 9.37 ADG, lb 1.13 .97 FG 8.64 10.6
1Peterson. 240 WDGS, 60 straw, pair
fed. 3Different source of WDGS.
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Bagging Effects1
Fresh Bagged Bagged1
DMI, lb 9.6 9.6 9.6 ADG, lb 0.89a 1.07b 1.11b GF
0.092b 0.110b 0.115b FG 13.3a 9.76b 8.99b
137.5 WDGS, 62.5 straw (DM). 2Plus
inoculum. a,bPlt0.05.
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