•  
  •  
 

Iowa Farm Science

Abstract

Most of us are still using the total digestible nutrient (TDN) system for formulating ruminant rations, evaluating feedstuffs and estimating animal response to different rations. The TDN system has served a useful purpose and will continue to be useful. However, it has definite limitations and drawbacks.

Included in

Agriculture Commons

Share

COinS