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The CAMDA sheep breeding scheme: I. Estimation of genetic parameters for 18-week weight

Published online by Cambridge University Press:  20 November 2017

A. A. Aslaminejad ,
R. M. Lewis ,
J. A. Roden  and
V.R. Fowler
A. A. Aslaminejad
Affiliation:
Department of Agriculture, University of Aberdeen, Aberdeen, AB24 5UA, UK
R. M. Lewis
Affiliation:
Animal Biology Division, SAC, King's Buildings, Edinburgh EH9 3JG, UK
J. A. Roden
Affiliation:
Department of Agriculture, University of Aberdeen, Aberdeen, AB24 5UA, UK
V.R. Fowler
Affiliation:
Department of Agriculture, University of Aberdeen, Aberdeen, AB24 5UA, UK
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Extract

The CAMDA group breeding scheme was established in 1976. Its objective is to increase lamb growth rate, mature size and maternal ability of the Welsh Mountain sheep while retaining their hardiness and breed type. The opportunity to achieve this goal depends on the extent of genetic variation within the breed for these traits. The objective of this study was to estimate the amount of variation in 18-week live weight attributable to the lamb genotype (direct) and dam maternal ability, both genetic and environmental, in Welsh Mountain sheep within this scheme.

A total of 12954 records of 18-week live weight of Welsh Mountain lambs collected between 1976 and 1995 from 4 flocks of the CAMDA scheme were considered. The data were edited for small contemporary groups and for incomplete performance or pedigree recording.

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 119
Copyright
Copyright © The British Society of Animal Science 1999

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References

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