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Cattle Confinement Considerations
Beth Doran, Beef Program Specialist
ISU Extension and Outreach
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What Affects Cattle Comfort?
• Air temperature
• Wind
• Precipitation
• Relative humidity
• Shelter
• Solar radiation
• Pen surface
• Animal body condition
• Animal surface/unit wt.
• Hair coat
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What About Animal Welfare?
Is this
good animal
welfare?
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Advantages of Confinement Barns
• Control manure runoff
• Animal comfort
– Winter
– Summer
• Improve performance?
– Gain – 3.5%
– Feed efficiency – 3.85%
• Reduce animal sickness
• Value of manure
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When a Confinement Barn Excels
• Light-weight calves
– Muddy
– Rain and <35⁰
– Cold and windy
• Market ready animals
– Muddy
– Hot and sunny
• Black-hided cattle
• Dairy steers
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Value of Manure
Open Feedlot
11 lbs Total N/ton x $0.31 =
$3.41 Total N/ton
14.0 lbs P205/ton x $0.43 =
$6.02 P205/ton
17.0 lbs K20/ton x $0.30 =
$5.10 K20/ton
$14.53/ton (5 tons/space/yr)
$73/space/year*
Mono-Slope Barn
21.7 lbs Total N/ton x $0.31 =
$6.73 Total N/ton
14.1 lbs P205/ton x $0.43 =
$6.06 P205/ton
14.6 lbs K20/ton x $0.30 =
$4.38 K20/ton
$17.17/ton (10 tons/space/yr)
$172/space/year*
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Disadvantages of a
Confinement Barn
Increased Cleaning Increased Bedding
Bedding Lb/hd/d
Average 4.25
Range 2-10
Frequency % Producers
4 times/week 6.7
3 times/week 6.7
2 times/week 13.3
1 time/week 46.7
Every 2 weeks 26.6
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Orientation of a Confinement Barn
Mostly east-west; seldom north-south
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Bunk Space Sets Barn Length
Minimum = 12” per Head
South Bunk North Bunk
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Animal Density
• Solid floor
– Avg: 40 sq ft/hd
– Range: 38-50 sq. ft/hd
• Slatted floor
– Avg: 25 sq ft/hd
– Range: 22-28 sq ft/hd
• Dependent on animal
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Floors of a Confinement Barn
Solid Slotted
Russ Euken, ISUEO
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Enhancing the Floors
in a Confinement Barn
Scored Solid Floor Mats for Slatted Floors
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Back of Building – Split Curtain
• Upper curtain
– attached 2” below eave
– Extends down 3’
• Lower curtain
– Attached below upper
curtain
– Extends to wall
– Rolls up from bottom
(reduces rodent
damage)
• Concrete wall is 5’ high
Upper Curtain
Lower Curtain
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Ventilation in a Confinement Barn
• Set by the opening of
the curtain in the back
• Roof may be
insulated to control
condensation
• Goals:
– Keep cattle dry
– Protect from wind
– BUT still have air
movement
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How the Curtain is Managed
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Slotted Floor, Deep Pit Beef Barn
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Cleaning a Pen
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Adding Bedding to a Pen
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Types of Bedding
• Cornstalks
– Most common
• Soybean Stover
• Straw
– Oat
– Wheat
• Woodchips
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Estimated Absorption of BeddingMaterial Lbs Water/Lb Bedding
(10% moisture)
Pine chips 3.0
Pine sawdust 2.5
Pine shavings 2.0
Hardwood 1.5
Shredded newspaper 1.6
Shredded corn stover 2.5
Ground corn cobs 2.1
Oat straw 2.5
Wheat straw 2.2
Chopped, mature hay 3.0
Soybean stover 2.8
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Bedding Management
Deep-Bedded Pack Shallow-Bedded Pen
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Effect of Bedding Management
on Pack Characteristics (Apr/June 09)
Deep Bedding Shallow Bedding
Pack Moisture, % 63.1 67.2
Pack Temp, ⁰F 70.2 65.2
pH 7.69 6.90
Gen E. coli, log CFU/g
6.02 6.72
Branch Chain VFA 2.57 3.81
Aromatics 1.95 4.42
Surface Temp, ⁰F 63.5 61.4
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Manure Storage
Manure Speed Bump
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This kind of hair
loss on the
lower round has
been observed
in some deep
bedded facilities
Cause not known –too wet, manure pH, abrasive surface??
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Mud/Manure Scoring
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Why Worry About Mud/Manure Scores?
• ↑ heat & cold stress
• ↓ ADG & FE
• ↓ dressing percent
• 1% on 1400# steer = 14#
14# x $1.1889 = $16.64
• ↓ value of hide (~$30)
• ↑ potential for E. Coli
0157:H7
• Recall cost – recovery, ↓
investment value
• ↓ consumer confidence
October, 2015
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Thank You!
Questions!