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![Page 1: PowerPoint Presentation€¦ · PPT file · Web view · 2015-09-17Energy Value of Feeding Distillers in a Forage Diet and Feeding Fresh versus Stored Distillers Terry Klopfenstein,](https://reader035.fdocuments.net/reader035/viewer/2022070611/5b03c3297f8b9a3c378cb289/html5/thumbnails/1.jpg)
Energy Value of Feeding Distillers in a Forage Diet and
Feeding Fresh versus Stored Distillers
Terry Klopfenstein, B.L. Nuttelman, Crystal Buckner
Animal ScienceUniversity 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 ValuesSource % Protein escape
SBM 30
DWG 60-70%
DDG 60-70%
DS 30%
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DDG Composition
Solubles Level, % (DM)Solubles Level, % (DM)aa
00 5.45.4 14.514.5 19.119.1 22.122.1
DM, %, % 95.595.5 92.192.1 90.890.8 89.389.3 89.689.6
CP, %CP, % 32.132.1 31.931.9 31.531.5 30.730.7 30.930.9
NDF, %NDF, % 36.836.8 34.934.9 31.931.9 30.330.3 29.329.3
Fat, %Fat, % 6.96.9 8.98.9 10.410.4 12.712.7 13.313.3aaSolubles level calculated using % NDF of solubles (2.3%) and 0% solubles DDGSolubles level calculated using % NDF of solubles (2.3%) and 0% solubles DDG
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DDG Protein Digestion, % of Entering
Solubles level, % DMSolubles level, % DM
Item 0 5.4 14.5 19.1 22.1
Ruminal 17.6 22.9 28.1 22.9 30.9
Post-ruminal 96.6 96.5 97.0 97.1 97.0
Total-tract 97.2 97.4 97.9 97.9 97.9
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Fat Intake, kg/dSolubles Level, %
DDG, % BW 0.0 5.4 14.5 19.1 22.1
0.25 0.16 0.18 0.19 0.20 0.22
0.50 0.21 0.24 0.27 0.30 0.33
0.75 0.26 0.31 0.34 0.40 0.43
1.00 0.31 0.37 0.41 0.48 0.49
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Gain:FeedGain:FeedSolubles Level, %Solubles Level, %
DDG, % BWDDG, % BW 0.00.0 5.45.4 14.514.5 19.119.1 22.122.1
0.250.25 0.1570.157 0.1390.139 0.1250.125 0.1400.140 0.1390.139
0.500.50 0.1340.134 0.1430.143 0.1590.159 0.1420.142 0.1620.162
0.750.75 0.1520.152 0.1510.151 0.1560.156 0.1590.159 0.1480.148
1.001.00 0.1430.143 0.1540.154 0.1630.163 0.1520.152 0.1480.148
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DRC or DDG Effects on DMI, NDF Rates and pH
Item Cont. DRC DDGDaily
DMIh, % BWa 1.88 1.69 1.69
DMIt, % BWa 1.88 2.10 2.09
NDF, %/hab 4.34 3.43 4.09
pHab 6.30 6.22 6.12aCont. vs Supplements, P< .05.bDDG vs DRC.
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DDG energy (forage diet)
ADG, lb/dcorn .81 1.57 .05DDG .99 1.89 .05
F:Gcorn 15.9 9.8 .5DDG 12.8 8.0 .5
DDG ~18 - 30% of cornLoy et al., 2003 Nebraska Beef Report (in press)
LOW HIGH SEM
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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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DRC WDGSInitial BW, lb 629 629DMI, lb/d 18 17.6ADG, lb 2.71 2.88G:F .15 .16
ResultsPerformance
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• 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
ResultsEnergy Calculation
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• WDGS 108% TDN
• 130% Estimated energy value of DRC– TDN values (108/83)
ResultsEnergy Calculation
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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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• 108% TDN value for WDGS
• WDGS– 15, 25, or 35% inclusion level
• DRC– 22, 41, and 60% inclusion level
Materials and MethodsIndividual Barn
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• 30% Sorghum silage
• Decreased Grass hay with increasing levels of WDGS or DRC
• Soypass and urea
Materials and MethodsIndividual Barn
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Energy Value of WDGS
DMI 15.6 15.6 16.1 16.1 15.7 15.7ADG 1.84 1.98 2.32 2.56 2.47 2.70G:F .119 .128 .144 .159 .158 .172
Corn WDGS Corn WDGS CornWDGS
Low Medium High
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• Low WDGS (15% )– 146% Feeding Value
• MED WDGS (25%)– 149% Feeding Value
• HIGH WDGS (35%)– 142% Feeding Value
ResultsIndividual Barn
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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 MethodsSummer 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
Item CON SUPP
Initial BW, lb 506 504
Spring BW, lb 695 693
Feedlot BW, lb 914a 1030b
ADG, lb/d 1.36a 2.20b
a,bMeans with different superscripts differ (P < 0.001).
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Meta-analysis
Griffin et al., 2009Griffin et al., 2009
0
0.2
0.4
0.6
0.8
1
1.2
0 0.2 0.4 0.6 0.8 1 1.2 1.4
ADGCON = 0.62 kg/d
ADGSUPP = 1.00 kg/d
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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
1Nuttelman.235% of diet by regression.3Value vs DDGS.
DMI, lb 17.0 15.4
ADG, lb 2.69 2.48
F:G 0.158 0.161 (+5%)3
DDGS2
WDGS2
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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 @ corn = 90% 108% TDN @ corn = 83% Fat UIP
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Feeding Fresh vs Wet Ensiled
WDGS or Solubles and Residues
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Solubles vs WDGS1
1Wilken.222.5% byproduct, 77.5% cornstalks.
DMI, lb 16.2 15.6
ADG, lb 1.04 1.25
F:G 15.5 12.5
Solubles2
WDGS2
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Solubles vs WDGS1
1Peterson.235% byproduct stored with 65% straw.
DMI, lb 11.0 9.87
ADG, lb 1.10 .88
F:G 9.70 11.2
Solubles2
WDGS2
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Ensiling WDGS with Cornstalks1
1Wilken.230% WDGS, 70% cornstalks.
DMI, lb 12.2 14.1
ADG, lb 1.02 1.43
F:G 11.95 9.83
Fresh2
Ensiled2
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Effect of Ensiling WDGS and Straw1
1Peterson.240% WDGS, 60% straw, pair fed.3Different source of WDGS.
DMI, lb 9.50 9.37
ADG, lb 1.13 .97
F:G 8.64 10.6
Fresh2
Ensiled2,3
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Bagging Effects1
DMI, lb 9.6 9.6 9.6ADG, lb 0.89a 1.07b 1.11b
G:F 0.092b 0.110b 0.115b
F:G 13.3a 9.76b 8.99b
Fresh Bagged Bagged+1
137.5% WDGS, 62.5% straw (DM).2Plus inoculum.a,bP<0.05.
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