McNay Memorial Research and Demonstration Farm

A Comparison of TDN and Net Energy Calculations for Estimating Empty Body Weight Change for Beef Cows Using ADF, NRC-01 Lignin and TTNDFd Methodology

Authors: Garland R. Dahlke (Iowa State University) , Devin Jakub (Iowa State University) , John Goeser (Rock River Laboratory, Inc.)

  • A Comparison of TDN and Net Energy Calculations for Estimating Empty Body Weight Change for Beef Cows Using ADF, NRC-01 Lignin and TTNDFd Methodology

    McNay Memorial Research and Demonstration Farm

    A Comparison of TDN and Net Energy Calculations for Estimating Empty Body Weight Change for Beef Cows Using ADF, NRC-01 Lignin and TTNDFd Methodology

    Authors: , ,

Abstract

Total tract neutral detergent fiber digestibility is a relatively new system for feed fiber quality evaluation and subsequent feed energy determination. This system has been proven to work in dairy cattle and also seems to work considerably better than the acid detergent fiber (ADF) system for feed energy estimation in beef cattle diets, even at low feed intakes per unit of body weight.

How to Cite:

Dahlke, G. R., Jakub, D. & Goeser, J., (2022) “A Comparison of TDN and Net Energy Calculations for Estimating Empty Body Weight Change for Beef Cows Using ADF, NRC-01 Lignin and TTNDFd Methodology”, Iowa State University Research and Demonstration Farms Progress Reports 2021(1), 19–22.

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Published on
01 Jun 2022