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Livestock Production
Friday, December 17, 2010 1:04:15 PM
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Effect of NDF digestibility on diet formulation and animal performance

 
Charles J. Sniffen
 

The work of Dr. Mike Allen, Michigan State in the late 80's, measuring NDF digestibility of different corn silage hybrids, initially resulted in much controversy. There was much resistance to the concept that differences in fiber digestibility in corn silage could have an impact on animal performance. He proceeded to do studies with BMR hybrids as well as with conventional hybrids both in lactating cow studies as well as a demonstration of a wide range of digestibility's among hybrids and over years.


The argument was made that there was more variation over years than there was among hybrids. However, he demonstrated that within any year there were hybrids that always were on the top in digestibility and those that were always on the bottom. He then extended this work to forages other than corn silage, essentially demonstrating the same concept.


Today, in the USA, NDF digestibility has become a routine measurement both as an in vitro measurement as well as with the use of NIR prediction.

 

For more of the article, please click here.
 

Article made possible through the contribution of Lallemand Animal Nutrition.

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