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Effect of ruminal degradable nitrogen deficit on nitrogen metabolism in growing double-muscled Belgian Blue bulls fed maize silage based diet

Published online by Cambridge University Press:  23 November 2017

D. Valkeners ,
Y. Beckers ,
M. Van Laere  and
A. Théwis
D. Valkeners*
Affiliation:
Gembloux Agricultural University, Passage des Déportés 2, 5030 Gembloux, Belgium
Y. Beckers
Affiliation:
Gembloux Agricultural University, Passage des Déportés 2, 5030 Gembloux, Belgium
M. Van Laere
Affiliation:
Gembloux Agricultural University, Passage des Déportés 2, 5030 Gembloux, Belgium
A. Théwis
Affiliation:
Gembloux Agricultural University, Passage des Déportés 2, 5030 Gembloux, Belgium
*
Email: valkeners.d@fsagx.ac.be
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Extract

As concerns for environmental damage instigated by agricultural processes increase, there is a greater need to develop more ecologically acceptable methods of producing agricultural products. Therefore, in beef production we have to minimise N excretion and maximise N retained. Urea recycling provides a mechanism by which N may be salvaged into bacterial matter that may be digested by the animal to supply amino acids for production purposes. According to Huntington and Archibeque (2000), the amount of recycled urea-N can be influenced by the ruminal ammonia concentration, the OM digestibility and the plasma concentration of urea. The objective of the present study was to examine the effect of different levels of ruminal degradable N (RDN) on nutrient digestion and N metabolism in double-muscled Belgian Blue (dm-BB) bulls fed maize silage based diet.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2005 , 2005 , pp. 182
Copyright
Copyright © The British Society of Animal Science 2005

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References

Huntington, G. B., Archibeque, S. L. 2000. Practical aspects of urea and ammonia metabolism in ruminants. Proc. Am. Soc. Anim. Sci. 1999. Available: http://www.asas.org/jas/symposia/proceedings/0939.pdf. Accessed Dec. 15, 2000.Google Scholar
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