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Returns from genetic improvement in dairy cattle over a twenty year horizon

Published online by Cambridge University Press:  20 November 2017

J.E. Pryce ,
G. Simm ,
P.R. Amer ,
M.P. Coffey  and
A.W Stott
J.E. Pryce
Affiliation:
Animal Biology Division, SAC, West Mains Road, Edinburgh EH9 3JG, UK
G. Simm
Affiliation:
Animal Biology Division, SAC, West Mains Road, Edinburgh EH9 3JG, UK
P.R. Amer
Affiliation:
AgResearch, Invermay Agricultural Centre, Private Bag 50034, Mosgiel, New Zealand
M.P. Coffey
Affiliation:
Animal Biology Division, SAC, West Mains Road, Edinburgh EH9 3JG, UK
A.W Stott
Affiliation:
Department of Agricultural and Food Economics, SAC, Craibstone Estate, Bucksburn, Aberdeen AB21 9YA, UK
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Extract

Genetic improvement is permanent and cumulative. Improvements made in one generation are passed onto the next. In the UK two selection indexes are currently available to the dairy industry, they are PIN (Profit Index; production only) and £PLI (Profitable Lifetime Index; production plus lifespan). Much of the current and anticipated index research and development will be on broader breeding goals that include health and fertility traits. Economic responses expected for PIN and £PLI over a 20 year period were calculated in addition to a hypothetical index where it was assumed that PTAs (predicted transmitting abilities) for mastitis (M) and calving interval (CI) were available (£PLI+M+CI).

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2000 , 2000 , pp. 37
Copyright
Copyright © The British Society of Animal Science 2000

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References

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