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The effects of plane of nutrition and diet type on lactogenic hormone levels, growth and milk production in high genetic merit dairy heifers

Published online by Cambridge University Press:  05 November 2021

A.F. Carson ,
F.J. Gordon ,
A.R.G. Wylie  and
J.E. McEvoy
A.F. Carson
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down BT26 6DR, Northern Ireland Department of Agriculture for Northern Ireland, Newforge Lane, Belfast BT9 5PX, Northern Ireland
F.J. Gordon
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down BT26 6DR, Northern Ireland Department of Agriculture for Northern Ireland, Newforge Lane, Belfast BT9 5PX, Northern Ireland
A.R.G. Wylie
Affiliation:
Department of Agriculture for Northern Ireland, Newforge Lane, Belfast BT9 5PX, Northern Ireland
J.E. McEvoy
Affiliation:
Veterinary Sciences Division, Stoney Road, Stormont, Belfast BT4 3SD, Northern Ireland
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Extract

To develop appropriate rearing regimes for high genetic merit dairy heifers, information is required on the effect of growth rates and diet type within the various stages of die animal’s life on performance. The aims of this study were to investigate (1) the effects of plane of nutrition and diet type during the pre-pubertal period on lactogenic hormone levels and (2) the effects of plane of nutrition during die post-pubertal period on lactogenic hormone levels, growth and milk production.

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Programme
Information
Proceedings of the British Society of Animal Science , Volume 1998 , 1998 , pp. 198
Copyright
Copyright © The British Society of Animal Science 1998

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