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A comparison of the prediction of intake and milk yield in high yielding dairy cows using either the UK rationing system or the Cornell Net Carbohydrate and Protein System

Published online by Cambridge University Press:  20 November 2017

R J Mansbridge ,
J S Blake  and
I Bending
R J Mansbridge
Affiliation:
ADAS Bridgets Dairy Research Centre, Martyr Worthy, Winchester, Hampshire, SO21 1AP UK
J S Blake
Affiliation:
ADAS Bridgets Dairy Research Centre, Martyr Worthy, Winchester, Hampshire, SO21 1AP UK
I Bending
Affiliation:
Loscombe Down, Winterbourne Steepleton, Dorchester, Dorset, DT2 9HD
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Extract

While the current UK Metabolisable Energy (ME) and Metabolisable Protein (MP) systems (AFRC, 1993) form the basis of diet formulation for ruminants in the UK, they are thought to have a number of serious deficiencies. Consequently, there has been increasing interest in other approaches such as the Cornell Net Carbohydrate and Protein System (CNCPS) (Fox et al., 1992) which estimates the effect of feeds on rumen substrate pools within a rumen sub-model. To examine the value of CNCPS to UK dairy farmers, this study compared measured performance against values predicted by CNCPS or the current UK ME/MP model.

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 207
Copyright
Copyright © The British Society of Animal Science 1999

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References

AFRC, 1993 Energy and Protein Requirements of Ruminants. Pub. CAB International, Wallingford.Google Scholar
Fox, D.G., Sniffen, C.J., O'Connor, J.D., Russell, J.B., and Van Soest, P.J., 1992. A Net Carbohydrate and Protein System for evaluating cattle diets : iii) cattle requirements and diet adequacy. Journal of Animal Science 70: 3578.CrossRefGoogle ScholarPubMed
Vladiveloo, J., and Holmes, W.,1979. The prediction of the voluntary feed intake of dairy cows. Journal of Agricultural Science, 93, 553–562.Google Scholar