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Title: Use of genomic information to estimate breeding values for carcass traits in sheep
Contributor(s): Swan, Andrew  (author); Brown, Daniel  (author); Tier, Bruce  (author); Van Der Werf, Julius H  (author)orcid 
Publication Date: 2011
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Abstract: Breeding values for carcass traits were estimated in a multi-breed sheep population using phenotypic, pedigree, and genomic information. This was achieved by incorporating a genomic relationship matrix into the standard pedigree based relationship matrix used in an animal model genetic evaluation. Heritability estimates were generally very close to estimates from a model using pedigree information only. A group of young rams genotyped but not measured for the traits in question were included in the analysis, and the accuracy of their estimated breeding values estimated using the prediction error variances of the fitted model increased by between 14 and 24 percentage points when genomic information was used. However, these accuracies were between 12 and 24 percentage points higher than observed accuracies, indicating that the scaling of the genomic relationship matrix was incorrect. Further research is required on the implementation of the method in multi-breed data.
Publication Type: Conference Publication
Conference Name: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics, Perth, Australia, 19th - 21st July, 2011
Conference Details: 19th Conference of the Association for the Advancement of Animal Breeding and Genetics, Perth, Australia, 19th - 21st July, 2011
Source of Publication: Breeding Objectives: A New Paradigm, p. 331-334
Publisher: AAABG: Association for the Advancement of Animal Breeding and Genetics
Place of Publication: Perth, Australia
Field of Research (FOR): 070201 Animal Breeding
Socio-Economic Outcome Codes: 830310 Sheep - Meat
830311 Sheep - Wool
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
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Series Name: Proceedings of the AAABG ... Conference
Series Number : 19
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Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
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