Table of Contents
The 1996 Beef NRC: what has happened, and future perspectives
Presentation overview
Charge to NRC Beef Committee
NRC Model:
NRC Model:
4 Components of the NRC System Developed
Intent of Two Solution Levels in the NRC Model:
Academic reviews
Assessment of the 1996 NRC: Owens et al.
New NRC Maintenance Model
PPT Slide
PPT Slide
PPT Slide
Condition Score vs. % Body Fat
PPT Slide
Retained Energy Predicted by the SRW System across all Cattle
Retained Protein Predicted by the SRW System across all Cattle
Application of the 1996 NRC in Brazil (Lanna et al., 1996)
Assessment of the 1996 NRC: Owens et al.
MP Allowable Gain
Amino Acid Composition, g/100g protein
Most Limiting Allowable Gain
Assessment of the 1996 NRC: Owens et al.
Assessment of the 1996 NRC: Moore et al.
PPT Slide
Sensitivity Analysis: Feed Biological Values
Effect of effective fiber
Assessment of the 1996 NRC: Zinn and Shen
PPT Slide
Summary of Nebraska Studies (Lardy et al., 1997)
Assessment of the 1996 NRC: Bartle and Ham
User responses
Recommendations for using NRC model
Programming Guides
New NRC Pregnancy Equation
New NRC Lactation Model
New NRC Growth Model
Effect of environment
New NRC Energy Reserves Model
ME Allowable Gain
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Author: Dr. Danny Fox, Cornell University
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Email:
sschmidt@acesag.auburn.edu
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