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Effects of synchronising dietary nitrogen and energy supply in diets with a similar carbohydrate composition on rumen fermentation and microbial protein synthesis in sheep

Published online by Cambridge University Press:  24 November 2017

L. A. Sinclair ,
P. C. Garnsworthy ,
J. R. Newbold  and
P. J. Buttery
L. A. Sinclair
Affiliation:
Harper Adams Agricultural College, Newport, Shropshire TF10 8NB
P. C. Garnsworthy
Affiliation:
University of Nottingham, Faculty of Agricultural and Food Sciences, Sutton Bonington, Loughborough, LE12 5RD
J. R. Newbold
Affiliation:
BOCM Pauls, 47 Key Street, Ipswich, IP4 1BX
P. J. Buttery
Affiliation:
University of Nottingham, Faculty of Agricultural and Food Sciences, Sutton Bonington, Loughborough, LE12 5RD
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Extract

The recently introduced metabolisable protein system for ruminants (Webster 1992) relates microbial nitrogen production to daily supply of fermentable metabolisable energy and effective rumen degradable protein but does not consider the effect of the pattern of supply of nutrients to rumen microbes on their efficiency and growth. However, synchronising the hourly supply of nitrogen and energy yielding substrates to rumen micro-organisms has been shown to increase the efficiency of microbial protein synthesis (Sinclair et al. 1993). The objective of the current experiment was to examine the effects of synchronising the hourly supply of energy and nitrogen in diets with a similar carbohydrate composition but differing in the rate of protein degradation, on rumen fermentation and microbial protein synthesis in sheep.

Type
Small Ruminant Production
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1993: Winter meeting , March 1993 , pp. 111
Copyright
Copyright © The British Society of Animal Production 1993

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References

Murphy, M.R, Baldwin, R.L. and Koong, L.J. (1982). J. Anim. Sci. 55: 411–421.Google Scholar
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Sinclair, L.A, Garnsworthy, P.C, Newbold, J.R. and Buttery, P.J. (1993). J. Agric. Sci. (In press)Google Scholar
Webster, A.J.F. (1992). In: Recent Advances in Animal Nutrition. London, Butterworths.Google Scholar