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Estimative of rumen microbial growth based on urinary purine derivatives excretion by sheep fed three different quality hays

Published online by Cambridge University Press:  20 November 2017

I.C.S. Bueno ,
S.L.S. Cabral Filho ,
D.M.S.S. Vitti  and
A.L. Abdalla
I.C.S. Bueno*
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP), CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
S.L.S. Cabral Filho
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP), CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
D.M.S.S. Vitti
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP), CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
A.L. Abdalla
Affiliation:
Laboratory of Animal Nutrition – Centre for Nuclear Energy in Agriculture (CENA/USP), CP 96, CEP 13400-970, Piracicaba, São Paulo, Brazil.
*
E-mail: icsbueno@cena.usp.br
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Extract

The best amino acid profile for ruminants is indeed the rumen microbial protein profile. Thus feeds that promote a good microorganism growth are desirable to be a component of ruminant diets. The aim of this work was to estimate microbial protein supply to ruminant fed three protein level hays based on urinary excretion of purine derivatives.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2004 , 2004 , pp. 119
Copyright
Copyright © The British Society of Animal Science 2004

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References

Chen, X.B. and Gomes, M.J., 1992. Estimation of microbial protein supply to sheep and cattle based on urinary excretion of purine derivatives – an overview of the technical details. Occasional publication of the International Feed Resources Unit. Aberdeen: RRI. 22p.Google Scholar
Chen, X.B.; Hovell, F.D.B.; Ørskov, E.R. and Brown, D.S., 1990. Excretion of purine derivatives by ruminants: effect of exogenous nucleic acid supply on purine derivative excretion by sheep. British Journal of Nutrition, 63: 131–142.CrossRefGoogle ScholarPubMed
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