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The effect of the reproductive state and concentrate supplementation on ruminal outflow rates of digesta in ewes

Published online by Cambridge University Press:  24 November 2017

J. F. Pérez ,
J. Gasa ,
C. Castrillo ,
C. Rubio  and
J. A. Guada
J. F. Pérez
Affiliation:
Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Miguel Servet 177. 50013 Zaragoza, Spain
J. Gasa
Affiliation:
Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Miguel Servet 177. 50013 Zaragoza, Spain
C. Castrillo
Affiliation:
Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Miguel Servet 177. 50013 Zaragoza, Spain
C. Rubio
Affiliation:
Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Miguel Servet 177. 50013 Zaragoza, Spain
J. A. Guada
Affiliation:
Departamento de Producción Animal y Ciencia de los Alimentos, Facultad de Veterinaria, Miguel Servet 177. 50013 Zaragoza, Spain
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Extract

Utilization of low quality roughage is fundamentally limited by its low energy content and low voluntary intake when fed to the ruminant animal; these being mainly determined by the simultaneous action of degradation in and outflow rates through the reticulum-rumen. While factors affecting rumen degradation rate are extensively described in bibliography, those related with rumen digesta outflow are not clear enough.

The objective of this study was to study the effect of the reproductive state and the level of concentrate supplementation upon ruminal outflow rates of digesta in ewes fed on straw based diets.

Type
Small Ruminant Production
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1993: Winter meeting , March 1993 , pp. 124
Copyright
Copyright © The British Society of Animal Production 1993

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References

Colucci, P.E.; Macleod, G.K.; Grovum, W.L.; McMillan, I.; Barney, D.J. (1990). Digesta kinetics in sheep and catde fed diets with different forage to concentrate ratios at high and low intakes. J. Dairy Sci. 73. 2143–2156.CrossRefGoogle Scholar
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