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1.2 Post-Ruminal Digestion and the Utilization of Nitrogen

Published online by Cambridge University Press:  27 February 2018

D. B. Lindsay  and
D. G. Armstrong
D. B. Lindsay
Affiliation:
ARC Institute of Animal Physiology, Babraham, Cambridge, CB2 4AT
D. G. Armstrong
Affiliation:
Department of Agricultural Biochemistry, University of Newcastle-upon-Tyne
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Extract

The preceding paper has detailed our current understanding of the processes of N digestion in the ruminant animal as they relate to the events occurring within the reticulo-rumen. It is the purpose of this paper to consider the processes of digestion occurring principally within the small intestine and to comment on the significance of events occurring within the caecum and colon in so far as they relate to nitrogen digestion. The fate of amino acids subsequent to their absorption from the gastro-intestinal tract will also be discussed, in particular the way they are catabolized and whether this limits their availability for the synthesis of protein. Reference will also be made to purine and pyrimidine nitrogen; these products arise from the considerable content of nucleic acids in the microbial mass which leaves the reticulo-rumen and undergoes digestion in the small intestine.

Type
1. Interrelationships Between Nitrogen and Energy Metabolism in Ruminants
Information
BSAP Occasional Publication , Volume 6: Forage Protein in Ruminant Animal Production , 1982 , pp. 13 - 22
Copyright
Copyright © British Society of Animal Production 1982

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