Winter SupplementationUtilizing Co-Products as a Supplement on Winter Range and Crop Residue Systems

Aaron Stalker

University of Nebraska

Utility of Distillers Grains

• Excellent source of – Energy

• Digestible fiber and fat

• Does not cause negative associative effects

– Protein• Undegraded intake protein

– Phosphorus• Often deficient in forage based diets

Utility of Distillers Grains

• Cake/cube– Fat content makes pelleting difficult

• Addition of other ingredients

DDGS cake as a winter supplementfor pregnant cows

Effect of supplement on cow body condition score

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WDGS as a winter supplementfor pregnant cows

Feeding Wet Distillers on RangeCows

Treatment

Item 3 d/wk 6 d/wk SE P value

BW change (lbs) -36 -48 12 0.54

BCS change 0.3 0.2 0.1 0.27

Equivalent of 1.0 lb (dm) fed from Dec 1 to Mar 1

Feeding Wet Distillers on RangeCows

Treatment

Item Bunk Ground SE P value

BW change (lbs) -20 -64 12 0.07

BCS change 0.4 0.0 0.1 0.01

Equivalent of 1.0 lb (dm) fed from Dec 1 to Mar 1

Feeding Wet Distillers on RangeCalves

Treatment

Item Bunk Ground SE P value

ADG 0.64 0.44 0.01 0.04

Start weight 442 lbsEquivalent of 2.2 lb (dm) fed Oct 15 to Dec 15

WDGS to calves on ground

• Used NRC (1996) to calculate waste– 0.3 lbs WDGS would increase ADG 0.2 lbs/day– 0.3 lbs WDGS at $200/ton equals $0.03/day– Actual cost is decreased sale weight

• Calculate bunk cost– Our estimate $0.16/day– Purchase, delivery, tax, depreciation, set up

Bunk cost

• Costs not associated for– Moving between pastures– Damage to pasture at site– Less fertilizer

• Bottom line– Calve sale price must be less than $82/cwt to

justify not feeding in the bunk

Wintering Pregnant Heifers

Supplement composition

Ingredient CPR MPR CGF DDGS

Cottonseed Meal58.8 - - -Feather Meal - 40.2 - -Soybean Meal 17.8 - - -Sunflower Meal 13.7 30.2 23 5Wheat Middlings - 26.2 - 20Dry Gluten Feed - - 72 -Distiller’s Grains 3.4 - - 60Molasses (Cane) 2.1 2.1 2.5 4Urea 2.8 - - -Salt 1.1 1.1 - -Vitamin Premix 0.2 0.2 .05 -Limestone 0.1 - .05 -Other - - 2.4 11

Pregnant Heifersa

CGF DDGS

Supp intake 196 321

Hay intake 624 --

ADG 0.63 0.83

BCS change -0.43 -0.33

Pregnancy Rate 96.5 97.1

a707 bred heifers, 10/16/03, to 3/1/04.

Pregnant Heifers

CGF DDGS

Feed Costs ($/hd) Supplement 24.29 28.44 Grazing 21.67 39.70 Hay 25.85 -

Labor Costs ($/hd) Supplement 0.76 3.14 Hay 6.87 -

Total Costs ($/hd) 79.44 71.28

Wintering Calvesa

Hay Range Range RangeCorn/SBM Corn/SBM DDGS 6x/wk DDGS 3x/wk

ADG 1.81 2.16 1.91 1.56

Supp intake 5.71 7.77 5.22 4.56

a447 lb., 1/8/04.

Wintering Calves

Hay Range Range RangeCorn/SBM Corn/SBM DDGS 6x/wk DDGS 3x/wk

Costs ($/hd) Supplement 19.71 24.10 15.57 17.78 Hay 20.27 - - - Range - 8.60 11.11 11.38 Total 39.98 32.70 26.68 26.16

Cost of gain ($/cwt) 32.90 25.98 23.78 29.30

Average Daily Gain

Treatment

P

L 0.79

Qd 0.29

C 0.96

Qr 0.42

DIP in DDG/ Meadow Hay Diets

Item No Urea Urea P

Diet

Initial, lb 452 449 0.10

Final, lb 579 585 0.38

ADG, lb 1.53 1.63 0.17

Total DMI, lb 11.9 11.6 0.76

F:G 9.8 9.1 0.33