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Effects of synchronising the rate of energy and nitrogen supply to the rumen in diets with two rates of carbohydrate release on growth and metabolism of male lambs

Published online by Cambridge University Press:  05 November 2021

M.W. Witt ,
L.A. Sinclair ,
R.G. Wilkinson  and
P.J. Buttery
M.W. Witt
Affiliation:
Harper Adams Agricultural College, Edgmond, Newport, Shropshire, UK. TF10 8NB
L.A. Sinclair
Affiliation:
Harper Adams Agricultural College, Edgmond, Newport, Shropshire, UK. TF10 8NB
R.G. Wilkinson
Affiliation:
Harper Adams Agricultural College, Edgmond, Newport, Shropshire, UK. TF10 8NB
P.J. Buttery
Affiliation:
University of Nottingham, Dept. ABFS, Sutton Bonnington Campus, Loughborough, Leics, UK. LE12 5RD
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Extract

Formulation of diets that are synchronous for hourly energy and nitrogen (N) release in the rumen has been shown to increase the efficiency of microbial protein synthesis (MPS) in the rumen (Sinclair et al. 1995). However diets formulated to be synchronous for hourly release of energy and N did not improve the whole body N efficiency of male lambs (Witt et al. 19%) but there were indications of possible differences in energy metabolism between animals offered synchronous or asynchronous diets. The objectives of the experiment were to measure the effects of synchronising hourly energy and N release in the rumen in diets with two rates of energy release on growth, aspects of whole body metabolism and carcass traits in male lambs.

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Programme
Information
Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 2
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. Effect of synchronizing the rate of dietary energy and nitrogen release in diets with similar carbohydrate composition on rumen fermentation and microbial protein synthesis in sheep. Journal of Agricultural Science, Cambridge. 120. 251–263.CrossRefGoogle Scholar
Witt, M.W., Sinclair, LA., Wilkinson, R.G. and Buttery, P.J. 1996. Effects of synchronising the rate of energy and nitrogen supply to the rumen in diets with two rates of carbohydrate release on metabolism in male lambs. In Press.CrossRefGoogle Scholar