The value of birth coat score as an early age selection criterion

Kemper, K. E., Ward, J. L. and Purvis, I. W. (2003). The value of birth coat score as an early age selection criterion. In: Proceedings of the Fifteenth (15th) Conference. Association for the Advancement of Animal Breeding and Genetics, Melbourne, Australia, (139-142). July 2003.

Author Kemper, K. E.
Ward, J. L.
Purvis, I. W.
Title of paper The value of birth coat score as an early age selection criterion
Conference name Association for the Advancement of Animal Breeding and Genetics
Conference location Melbourne, Australia
Conference dates July 2003
Proceedings title Proceedings of the Fifteenth (15th) Conference
Place of Publication Melbourne, Australia
Publisher Association for the Advancement of Animal Breeding and Genetics
Publication Year 2003
Sub-type Fully published paper
Open Access Status Not yet assessed
Volume 15
Start page 139
End page 142
Total pages 4
Language eng
Abstract/Summary Data from the CSIRO Fine Wool Project flock were used to examine the relationships between birthcoat, economically important fleece traits and body weight. Birthcoat was found to be highly heritable, and had small positive genetic correlations with coefficient of variation of fibre diameter (0.24), staple length (0.25) and mean fibre diameter (0.12). Genetic correlations between birthcoat and clean fleece weight, staple strength, mean fibre curvature, birth weight and hogget body weight were essentially zero. Correlation estimates were used to model the effects of selection strategies incorporating birthcoat on a breeding objective aimed at increasing clean fleece weight, reducing mean fibre diameter and maintaining staple strength. Birthcoat did not increase economic gains when included in the selection criteria.
Keyword Birthcoat
Merino
Fleece characteristics
Selection
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes http://www.aaabg.org/proceedings/2003/139-142.pdf

Document type: Conference Paper
Collection: Institute for Molecular Bioscience - Publications
 
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Created: Tue, 23 May 2017, 14:03:01 EST by Kathryn Kemper on behalf of Institute for Molecular Bioscience