Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-17T18:22:51.747Z Has data issue: false hasContentIssue false
  • English
  • Français

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

F.J. Giráldez ,
R. Peláez ,
E. Zorita  and
C. Valdés
F.J. Giráldez
Affiliation:
Dpto. de Producción Animal, Universidad de León, 24071. León.(Spain)
R. Peláez
Affiliation:
Dpto. de Producción Animal, Universidad de León, 24071. León.(Spain)
E. Zorita
Affiliation:
Dpto. de Producción Animal, Universidad de León, 24071. León.(Spain)
C. Valdés
Affiliation:
Dpto. de Producción Animal, Universidad de León, 24071. León.(Spain)
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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
Coto, G., Ortiz, F., Cruz, R. y López, F. 1984. Rev. Cubana Cienc. Agric, 18, 47–54.Google Scholar
Lindberg, J.E. and Jacobsson, K.G. 1990. Br. J. Nutr., 64, 359–370.Google Scholar