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Comparative digestive ability and microbial population of Sistani (bos indicus) and Holstein (bos taurus) cattle fed different roughage diets

Published online by Cambridge University Press:  20 November 2017

H. Mansouri ,
A. Nikkhah ,
M. Rezaeian ,
M. Moradi  and
S. A. Mirhadi
H. Mansouri*
Affiliation:
Animal Science Research Institute, PO Box 31585-1483, Karaj, I.R.., Iran
A. Nikkhah
Affiliation:
Agriculture Faculty of Tehran University, Karaj, I.R., Iran
M. Rezaeian
Affiliation:
Agriculture Faculty of Tehran University, Karaj, I.R., Iran
M. Moradi
Affiliation:
Agriculture Faculty of Tehran University, Karaj, I.R., Iran
S. A. Mirhadi
Affiliation:
Animal Science Research Institute, PO Box 31585-1483, Karaj, I.R.., Iran
*
Email mansh491@yahoo.com
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Extract

There is conflict regarding the relative abilities of Bos indicus and Bos taurus cattle to digest the feedstuffs. Part of this conflict may have arisen because a wide variety of diets have been fed at different range of intakes and only digestibility in whole tract measured. Generally no attempts have been made to partition rumen and post-rumen digestion or to assess the relative importance of rumen digestion and clearance between diets and between genotypes. Nitrogen (N) is frequently a major limiting nutrient for ruminants specially when they are given diets of mature herbage. On the other hand the extent to which cattle are able to recycle urea-N from blood to rumen for utilization in production of microbial protein could have an important influence on animal survival under condition of severe N limitation. The present experiment was designed to compare rumen microbial population and the end products of rumen fermentation between Sistani (Bos indicus) and Holstein (Bos taurus) breeds.

Type
Cattle Nutrition
Information
Proceedings of the British Society of Animal Science , Volume 2003 , 2003 , pp. 116
Copyright
Copyright © The British Society of Animal Science 2003

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