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Relationship between linear and composite type traits, somatic cell count and lifespan in pedigree and non-pedigree cows

Published online by Cambridge University Press:  20 November 2017

R. A. Mrode  and
G. J. T. Swanson
R. A. Mrode
Affiliation:
Animal Data Centre Ltd, Fox Talbot House, Greenways Business Park, Chippenham, Wiltshire, SN15 1BN, U.K.
G. J. T. Swanson
Affiliation:
Animal Data Centre Ltd, Fox Talbot House, Greenways Business Park, Chippenham, Wiltshire, SN15 1BN, U.K.
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Extract

Lifespan (LS) evaluations in the United Kingdom (UK) are based on bivariate analyses of LS scores, a direct longevity measure calculated from the number of lactations a cow has completed or is expected to complete, and an index of 4 linear type traits as an indirect predictor (Brotherstone et al, 1998). However, the study did not consider composite type traits or somatic cell count (SCC) and the data was only from pedigree herds. This study examines the relationship between type traits and SCC with LS in pedigree and non-pedigree cows.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2002 , 2002 , pp. 17
Copyright
Copyright © The British Society of Animal Science 2002

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References

Brotherstone, S., Veerkamp, R. F., Hill, W. G. 1998. Predicting breeding values for herd life of Holstein Friesian dairy cattle from lifespan and type. Anim. Sci. 67: 405–411.Google Scholar
Animal Data Centre (2001) Linear Type and Composite Traits. Technical Bulletin. pp 15–19.Google Scholar