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TDN

Last Updated: May 18, 2012

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TDN-(Total Digestible Nutrients)- is an energy system that is calculated after obtaining the proximate analysis and digestibility figures for a feed. It is expressed in pounds, kilograms, or percentages.

Formula for calculating TDN

  • TDN= (digestible crude protein) + (digestible crude fiber) + (digestible nitrogen-free extract) + (digestible crude fat x 2.25)

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