Winter Supplementation Utilizing Co-Products as a Supplement on

Winter Supplementation Utilizing 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 supplement for pregnant cows

Effect of supplement on cow body condition score *** ** ***

WDGS as a winter supplement for pregnant cows

Feeding Wet Distillers on Range Cows Treatment Item 3 d/wk 6 d/wk P value -48 SE 12 BW change (lbs) -36 BCS change 0. 3 0. 2 0. 1 0. 27 0. 54 Equivalent of 1. 0 lb (dm) fed from Dec 1 to Mar 1

Feeding Wet Distillers on Range Cows Treatment Item BW change (lbs) BCS change Bunk -20 Ground -64 0. 0 SE P value 12 0. 07 0. 1 0. 01 Equivalent of 1. 0 lb (dm) fed from Dec 1 to Mar 1

Feeding Wet Distillers on Range Calves Treatment Item Bunk Ground SE P value ADG 0. 64 0. 44 0. 01 0. 04 Start weight 442 lbs Equivalent 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 Cottonseed Meal Feather Meal Soybean Meal Sunflower Meal Wheat Middlings Dry Gluten Feed Distiller’s Grains Molasses (Cane) Urea Salt Vitamin Premix Limestone Other CPR 58. 8 17. 8 13. 7 3. 4 2. 1 2. 8 1. 1 0. 2 0. 1 - MPR 40. 2 30. 2 26. 2 2. 1 1. 1 0. 2 - CGF 23 72 2. 5. 05 2. 4 DDGS 5 20 60 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 a 707 bred heifers, 10/16/03, to 3/1/04.

Pregnant Heifers CGF DDGS Feed Costs ($/hd) Supplement Grazing Hay 24. 29 21. 67 25. 85 28. 44 39. 70 - Labor Costs ($/hd) Supplement Hay 0. 76 6. 87 3. 14 - Total Costs ($/hd)79. 44 71. 28

Wintering Calvesa Hay Range Corn/SBM Range DDGS 6 x/wk DDGS 3 x/wk ADG 1. 81 2. 16 1. 91 1. 56 Supp intake 5. 71 7. 77 5. 22 4. 56 a 447 lb. , 1/8/04.

Wintering Calves Hay Corn/SBM Range DDGS 6 x/wk DDGS 3 x/wk Costs ($/hd) Supplement Hay Range Total 19. 71 20. 27 39. 98 24. 10 8. 60 32. 70 15. 5717. 78 11. 1111. 38 26. 6826. 16 Cost of gain ($/cwt) 32. 90 25. 98 23. 7829. 30

Average Daily Gain P L 0. 79 Qd 0. 29 C 0. 96 Qr 0. 42 Treatment

DIP in DDG/ Meadow Hay Diets Diet Item No Urea P 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 9. 8 9. 1 0. 33 F: G