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Purine derivatives excretion in sheep urine in relation to metabolizable energy and rumen degradable protein intake
Published online by Cambridge University Press: 24 November 2017
Extract
Recently has been shown that allantoin or total purine derivatives excretion in urine are strongly related to the amount of purines reaching the small intestine (Chen et al., 1990; Balcells et al., 1992) and as consequence purine derivative output is propouse to be used as an index of microbial protein flow to small intestine.
Because energy and rumen degradable protein supplies are the main factors affecting rumen microbial growth, the effect of changes in rumen degradable protein supplies at different levels of ME intake on urinary excretion of purine derivatives was studied in this work.
- Type
- Ruminant Metabolism
- Information
- Proceedings of the British Society of Animal Production (1972) , Volume 1993: Winter meeting , March 1993 , pp. 186
- Copyright
- Copyright © The British Society of Animal Production 1993
References
Balcells, J., Guada, J.A., Castrillo, C and Gasa, J.
1991. J. Agric. Sci., Camb., 116, 309–317.CrossRefGoogle Scholar
Chen, X.B., Hovell F.D., Deb., Orskov, E.R. and Brown, D.S.
1990. Br. J. Nutr., 63, 131–142.CrossRefGoogle Scholar