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The effect of diet asynchrony on portal-drained viscera metabolism

Published online by Cambridge University Press:  05 November 2021

N.D. Scollan ,
E.J. Kim ,
M.S. Dhanoa ,
J.M. Gooden ,
M.A. Neville ,
R.T. Evans ,
J.M. Dawson  and
P.J. Buttery
N.D. Scollan
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK
E.J. Kim
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK
M.S. Dhanoa
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK
J.M. Gooden
Affiliation:
University of Sydney, PMB 3, Camden NSW 2570, Australia
M.A. Neville
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK
R.T. Evans
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK
J.M. Dawson
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK
P.J. Buttery
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK
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Extract

Synchronising the rate of rumen breakdown and availability of dietary energy and nitrogenous components can improve the capture of rumen degradable nitrogen and improve the amount and efficiency of rumen microbial protein synthesis. It is not clear what influence rumen synchrony has on nutrient use by the portal-drained viscera (PDV). This experiment has examined the impact of feeding two diets formulated to be asynchronous or synchronous with respect to the potential hourly supply of energy and nitrogen to the microbial fraction of the rumen on portal blood flow, net flux of ammonia and urea across the PDV and arterial insulin concentrations.

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 1
Copyright
Copyright © British Society of Animal Science 1997

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References

Sinclair, L.A., Garnsworthy, P.C., Newbold, J.R. and Buttery, P.J. 1995. Effects of synchronising the rate of dietary energy and nitrogen release in diets with a similar carbohydrate composition on rumen fermentation and microbial protein synthesis in sheep. Journal of Agricultural Science 124: 463–472.CrossRefGoogle Scholar