Cattle Feeding in Iowa for the 21st Century

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Cattle Feeding in Iowafor the 21st Century

• Sponsored by

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Feedlot Performance and Facility Type

• Dan Loy
• Department of Animal Science

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Change In Feed Intake Open Lot vs. Confinement
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Change In Feed/Gain Confinement vs. Open Lot
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Change In Feed/GainNo Shelter vs Shelter
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Closeout Performance Trends
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ADG Assumptions
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F/G Assumptions
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Rations

• Flexible feed storage
• Corn gluten feed
• Ground hay
• Dry corn
• Supplement

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The Bottom LineEconomic Analysis

• William Edwards
• Department of Economics

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Economic Analysis

• Initial investment
• Annualized costs
• Cost per head
• Yardage
• Environmental structures costs

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Initial Investment

• Earthen lot with windbreak has lowest initial
  investment
• Adding a shed doubles the costs
• Concrete with shed comparable to earthen lot with
  shed when environmental structures included
• Confinement highest investment

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Overhead and Operation

• Earthen lot advantage for small lot
• Earthen lots without shed or concrete lot were
  lowest cost for large lot
• Confinement had higher costs
• Yardage ranges from .20-.36 /head/day

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Cost of Gain

• Incorporates animal performance
• Yearlings and calves similar
• Small lot - earthen or concrete lots
• Large lots - concrete lot
• Confinement has higher cost of gain

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Environmental Structures

• Not needed on confinement
• Lowest for concrete lot with shed
• 1/5 to 1/10 the cost of earthen lot structures
• Relative cost of structures
• 50 was largest initial investment
• 15 of pens lose more than 50/head
• Maximum annual cost less than 5/head

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Size of Feedlot

• Subject to assumptions
• Many costs were linear
• 750 head lot
• Already capturing most economies of scale
• Environmental savings may be short lived
• 5000 head lot
• Economies of scale
• Environmental and overhead