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The effect of asynchronous diets on the function of the rumen in the lactating dairy cow

Published online by Cambridge University Press:  05 November 2021

A.R. Henderson ,
P.C. Garnsworthy ,
J.R. Newbold  and
P.J. Buttery
A.R. Henderson
Affiliation:
University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LEI 2 5RD, UK
P.C. Garnsworthy
Affiliation:
University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LEI 2 5RD, UK
J.R. Newbold
Affiliation:
BOCM Pauls PO Box 39, 47 Key St., Ipswich, Suffolk, IP4 1BX, UK
P.J. Buttery
Affiliation:
University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LEI 2 5RD, UK
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Extract

Sinclair et al. (1993) found that a diet formulated to be synchronous with regard to hourly release of nitrogen and energy increased microbial protein synthesis by 14% in sheep. Dairy cows in early lactation experience a shortfall of energy and protein, with available protein determining the overall efficiency of metabolism (MacRae and Lobley, 1986) and subsequent milk production. It is therefore necessary to maximise microbial protein yield during this period. In this study diets were designed for lactating dairy cows to contain the same feed ingredients, but to release nitrogen and energy in the rumen at different times. Rumen fermentation parameters, nutrient flows to the small intestine and production performance were investigated.

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1998 , 1998 , pp. 19
Copyright
Copyright © The British Society of Animal Science 1998

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References

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