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Urinary excretion of allantoin in steers fed on cereal based diet infused with different levels of urea-casein

Published online by Cambridge University Press:  05 November 2021

S. M. Martín-Orúe ,
J. Balcells ,
F. Vicente  and
J. A. Guada
S. M. Martín-Orúe
Affiliation:
Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
J. Balcells
Affiliation:
Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
F. Vicente
Affiliation:
Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
J. A. Guada
Affiliation:
Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Universidad de Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain
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Extract

Values of ammonia concentration in rumen liquid have been used as an index of nitrogen requirements of rumen microflora even though ammonia requirements seem to depend on the type of diet. Cellulollitic flora mainly use ammonia as N source, while bacteria that ferment non-structural carbohydrates use either ammonia or protein nitrogen. The aim of this experiment was to establish the minimum concentration of ammonia to optimise microbial synthesis in the rumen of steers fed concentrate-based diets.

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Information
Proceedings of the British Society of Animal Science , Volume 1998 , 1998 , pp. 79
Copyright
Copyright © The British Society of Animal Science 1998

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References

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