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Advances in methodology for utilizing sequential records

Published online by Cambridge University Press:  27 February 2018

W. G. Hill  and
S. Brotherstone
W. G. Hill
Affiliation:
Institute of Cell, Animal and Population Biology, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT
S. Brotherstone
Affiliation:
Institute of Cell, Animal and Population Biology, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT
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Abstract

There have been substantial advances in recent years in methods for genetic analysis of traits that are expressed repeatedly over time, for example milk yield on successive test days during lactation. The background to the methods, notably random regression, covariance functions and splines, are outlined. The utility of these methods for analysing functional data on which individual records on cows are few but sire family records that span the lactation, is reviewed. Methods of analyses for measures of herd life are discussed and that being adopted in the UK is outlined.

Type
Research Article
Information
BSAP Occasional Publication , Volume 24: Metabolic stress in dairy cows , 1999 , pp. 55 - 61
Copyright
Copyright © British Society of Animal Science 1999

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