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Utilizing Stockpiled Bermudagrass to Reduce Hay Feeding Costs

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Utilizing Stockpiled Bermudagrass to Reduce Hay Feeding Costs. Why all ... Stock Density and. Harvest Efficiency. Exp 1 Exp 2. Stw Hsk Stw Hsk. Stocking Density ... – PowerPoint PPT presentation

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Title: Utilizing Stockpiled Bermudagrass to Reduce Hay Feeding Costs


1
Utilizing Stockpiled Bermudagrass to Reduce Hay
Feeding Costs
2
Why all the interest in stockpiling?
  • Cow/calf enterprise has been profitable 9 out of
    past 16 years.
  • Cattle Fax
  • We must do something different!

3
Cost of feeding hay?
4
Cost of feeding hay? 1200 lb round bale example
  • Nutrients removed 13.68
  • Harvesting 14.00
  • Stacking and feeding 2.32
  • Storage loss 6.00
  • Feeding loss 4.00
  • Total 40.00

Or 66.67 per ton
Source Redmon, OSU and Coffey, Noble Foundation
5
Harvested forage is used to preserve forage
quality and fill gaps in forage availability
6
Can we manage standing forage for adequate
quality and availability to maintain gestating
cows?
Can we do this at a lower cost compared to
feeding hay?
Stockpiling is not a new idea for Oklahoma
cattlemen
7
How well does bermuda quality hold up? Likely
dependant on weather, fertility and stage of
maturity at frost.
8
Bermuda Yield by N Fertilization Rate
DM Yield, Tons per Acre
N fertilizer/Lb. per acre
Source OSU Fact Sheet 2587
9
Late Summer Fertilization Harvest October 23
Crude Protein,
N fertilizer/Lb. per acre
Source Woods, OSU
10
Late Summer Fertilized Bermuda Protein Content
Crude Protein,
Sampling Date
Source Taliaferro, OSU
11
Current 2 Year Study Materials and Methods
12
Objectives
  • Determine forage production and quality of late
    summer fertilized bermuda
  • Determine supplemental protein required to
    maximize forage utilization throughout the winter

13
Management Timeline
Aug
Sept
Oct
Nov
Dec
Jan
Feb
14
Locations
Stillwater
Average wt.1203 lb.
Average BCS5.5
Haskell
15
Pasture Preparation
  • Pastures were grazed heavily through August to
    remove standing forage
  • Excess forage at Stillwater was clipped both
    years
  • Last week of August, 50 LB of actual N
    fertilizer per acre was applied to the pastures.

16
Grazing Management
  • Grazing period
  • Experiment 1 Nov. 4 to Jan. 22 (77 days)
  • Experiment 2 Nov. 3 to Feb. 2 (90 days)
  • Grazing technique
  • Stillwater Frontal grazing
  • Haskell Rotational
  • 7-14 day forage allowance

17
Treatments
  • CONT no supplement
  • L 2 lbs of 12.5 CP supplement
  • M 2 lbs of 25 CP supplement
  • H 2 lbs of 37.5 CP supplement

18
Supplement Composition, of Dry Matter
  • Treatments L M H
  • Soyhulls 92.5 60.4 30.6
  • Soybean
  • Meal 0 31.9 62.2
  • Molasses 3.6 3.6 3.6
  • Dical P 2.5 2.0 1.0
  • Ca CO3 0.5 1.0 2.0

19
Feeding
  • Cows were individually fed in portable supplement
    wagons.
  • Supplements were prorated to 4 d/wk feeding.
  • No harvested forages were fed throughout the
    experiment.

20
Results
21
Weather, Forage Production and Utilization
22
Mean Temperature Versus 10-yr Average
Stillwater
Haskell
23
Mean Precipitation Versus 10-yr Average
Stillwater
Haskell
24
Forage Production
Location effect P lt .05
25
Stock Density and Harvest Efficiency
Exp 1 Exp 2 Stw Hsk Stw Hsk Stocking
Density AU/Acre .73 .57 .40 .85 Harvest Effic
iency, 61 60 65 62
26
Forage Quality
27
Forage Quality Crude Protein
28
Forage Quality Degradable Protein
Cow requirement assumes diet is 50 TDN
29
Forage Quality Digestibilitya, Exp 1
aIn vitro dry matter disapearance Linear decline
P lt .05
30
Forage Quality Digestibilitya, Exp 2
aIn vitro dry matter disapearance Quadratic
decline P lt .05
31
Animal Performance
32
Period Wt. Change Experiment 1
Weight lbs.
Treatment
Period 2 C VS Sup P lt .01 Period 2 Protein Effect
Plt.05
33
Overall Wt. Change Experiment 1
Weight. Lbs.
-44.0
Treatment
C VS Sup P lt .05
34
Period Wt. Change Experiment 2
Weight lbs.
Treatment
Periods 2 and 3 C VS Sup P lt .01
35
Overall Wt. Change Experiment 2
Weight. Lbs.
Treatment
C VS Sup P lt .05
36
Summary of Animal Performance
  • Only during period 2 of Exp. 1 did increased
    supplemental protein further increase performance
    over 12.5.
  • In both trials, any supplement improved forage
    intake and animal performance.
  • Supplemental energy was the limiting nutrient as
    suggested by forage quality data and cow
    performance.

37
Comparison of Beef Cow Wintering Systems
38
Cowboy Economics Assumptions
  • 120 days summer grazing
  • 100 days fall / winter grazing
  • Forage availability 2800 lb / acre
  • Harvest efficiency 60
  • Stocking rate 1.6 acres / cow
  • .63 cows / acre
  • Annual rental rate (bermuda) 18 / acre
  • Fall N Fertilizer at 50 lb/acre 12.00
  • Stockpiled Bermuda 20.18 / acre

39
Cowboy Economics Assumptions, Cont.
  • Native pasture rent 10 / acre
  • Native stocking rate 10 acres / cow
  • Bermuda hay 50 / ton
  • 25 cubes 130 / ton
  • 38 cubes 170 / ton

40
Native Pasture Supplement
3 acres deferred pasture 27.40 2 lb. 38
supplement, 75 d 12.75 Total 40.15
41
Good Bermuda Hay Only No Supplement Required
100 d at 25 lb. per day 62.50 Hay feeding
waste _at_ 15 9.38 Total 71.88
42
Hay, Native Grass (50/50) and Supplement
1.5 acres pasture 13.70 12.5 lb. bermuda hay
31.25 Hay feeding waste _at_ 15 4.69 1.0 lb.
38 sup, 75 d 6.38 Total 56.02
43
Hay, Native Grass (25/75) and Supplement
2.0 acres pasture 18.27 6.25 lb. bermuda hay
15.63 Hay feeding waste _at_ 15 2.34 1.5 lb.
38 sup, 75 d 9.56 Total 45.80
44
Stockpiled Bermudagrass Supplement
1.6 acres pasture 32.29 2 lb. 25
supplement, 70 d 9.10 Total 41.39
45
Summary
  • Native pasture and supplement 40.15
  • Stockpiled bermudagrass 41.39
  • Hay, native pasture 25/75 45.80
  • Hay, native pasture 50/50 56.02
  • Hay only 71.88

46
Short Term Grazing
  • Objective
  • Utilize stockpiled forage within 60 days (late
    Oct. through late Dec.) before moving to
    different forage base
  • Assumptions
  • Same as 100 day grazing program with following
    exceptions
  • Harvest efficiency 65
  • Stocking rate 1.2 cows per acre
  • .83 acres per cow

47
Stockpiled Bermudagrass Supplement (60 days)
.83 acres per cow 16.75 2 lb. 25
supplement, 30 d 3.90 Total 20.65
Or....34 per head per day
48
(No Transcript)
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