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Validation of models commonly used to predict feed intake of lactating dairy cattle

Published online by Cambridge University Press:  20 November 2017

T.W.J. Keady ,
C.S. Mayne  and
D.J. Kilpatrick
T.W.J. Keady
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down BT26 6DR, Northern Ireland
C.S. Mayne
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down BT26 6DR, Northern Ireland
D.J. Kilpatrick
Affiliation:
Department of Agriculture and Rural Development, Newforge Lane, Belfast BT9 5PX, Northern Ireland
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Extract

Accurate prediction of daily food intake is a fundamental prerequisite of any nutritional model designed to provide feeding recommendations for lactating dairy cattle. Consequently, much research effort has been expended over the last twenty years in developing food intake prediction models. These range from relatively simple multiple regression models to much more complex theoretical models embracing animal and food characteristics and environmental influences. However, given the major changes in the types of diet now offered to dairy cows, coupled with changes in genetic merit/milk production potential, it is important to examine if the food intake prediction models currently used within the British Isles are appropriate for to-day’s dairy cow. This paper examines the accuracy of prediction of a range of intake models for diets based on grass silage, concentrates and brewers grains.

Type
Threatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2001 , 2001 , pp. 1
Copyright
Copyright © The British Society of Animal Science 2001

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References

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