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Effect of Rumen Incubation on the True Indigestibility of Feed Protein in the Digestive Tract Determined by Nylon Bag Techniques

Effect of Rumen Incubation on the True Indigestibility of Feed Protein in the Digestive Tract... Abstract The effect of rumen incubation on the true indigestibility of feed protein in the digestive tract (TIFP) was studied for 10 concentrates. Only fish meal and soybean meal showed a constant TIFP independent of rumen incubation time or extent of rumen protein degradation. For the other feedstuffs, TIFP decreased to various degrees at increased ruminal protein degradation. For extracted rapeseed meal, maize gluten meal and guar meal, however, TIFP measured without pre-incubation in the rumen was also satisfactory as a basis for predicting the true digestibility of rumen undegraded feed protein in the intestine (TDRUP) for practical purposes. In contrast, TIFP for predicting TDRUP for peas, rapeseeds, lupin seeds, barley and oats should be determined on feed samples after rumen incubation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Agri Scand A Animal Sci Taylor & Francis

Effect of Rumen Incubation on the True Indigestibility of Feed Protein in the Digestive Tract Determined by Nylon Bag Techniques

Volden, Harald; Harstad, Odd Magne
Acta Agri Scand A Animal Sci , Volume 45 (2): 10 – May 1, 1995
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Effect of Rumen Incubation on the True Indigestibility of Feed Protein in the Digestive Tract Determined by Nylon Bag Techniques

Abstract

Abstract The effect of rumen incubation on the true indigestibility of feed protein in the digestive tract (TIFP) was studied for 10 concentrates. Only fish meal and soybean meal showed a constant TIFP independent of rumen incubation time or extent of rumen protein degradation. For the other feedstuffs, TIFP decreased to various degrees at increased ruminal protein degradation. For extracted rapeseed meal, maize gluten meal and guar meal, however, TIFP measured without pre-incubation in the...
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Publisher
Taylor & Francis
Copyright
Copyright Taylor & Francis Group, LLC
ISSN
1651-1972
eISSN
0906-4702
DOI
10.1080/09064709509415838
Publisher site
See Article on Publisher Site

Abstract

Abstract The effect of rumen incubation on the true indigestibility of feed protein in the digestive tract (TIFP) was studied for 10 concentrates. Only fish meal and soybean meal showed a constant TIFP independent of rumen incubation time or extent of rumen protein degradation. For the other feedstuffs, TIFP decreased to various degrees at increased ruminal protein degradation. For extracted rapeseed meal, maize gluten meal and guar meal, however, TIFP measured without pre-incubation in the rumen was also satisfactory as a basis for predicting the true digestibility of rumen undegraded feed protein in the intestine (TDRUP) for practical purposes. In contrast, TIFP for predicting TDRUP for peas, rapeseeds, lupin seeds, barley and oats should be determined on feed samples after rumen incubation.

Journal

Acta Agri Scand A Animal Sci – Taylor & Francis

Published: May 1, 1995

Keywords: intestinal digestibility; mobile nylon bag technique; protein value; ruminants

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