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The development of a system based on near infrared spectroscopy to predict the intake of grass silage as the sole feed by the dairy cow

Published online by Cambridge University Press:  20 November 2017

R. E. Agnew ,
N W Offer ,
B McNamee  and
R S Park
R. E. Agnew
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, U.K
N W Offer
Affiliation:
SAC, Auchincruive, Ayr
B McNamee
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, U.K
R S Park
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, U.K
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Extract

Grass silage remains the major forage component of winter dairy rations, yet its intake characteristics are particularly variable. Major research projects at SAC and ARINI over the past few years have produced two large datasets on ad libitum intake of grass silage and shown that improved silage characterisation methods (NIRS and electrometric titration) can substantially improve the accuracy of prediction of silage intake as the sole forage (Offer et al., 1994; Steen et al., 1995). The objective of this research programme was to integrate these two datasets to provide a common prediction system which would be appropriate for adoption across the United Kingdom

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2001 , 2001 , pp. 197
Copyright
Copyright © The British Society of Animal Science 2001

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References

Offer, N.W., Dewhurst, R.J. and Thomas, C. (1994). The use of electrometric titration to improve the routine prediction of silage intake by lambs and dairy cows. Animal Production, 58, 427.Google Scholar
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Rook, A. J., Dhanoa, M.S and Gill, M. (1990). Prediction of the voluntary intake of grass silage by beef cattle. 3. Precision of alternative prediction models. Animal Production 50, 455–466 Google Scholar