Genomic Selection in Sheep Breeding Programs

Title
Genomic Selection in Sheep Breeding Programs
Publication Date
2014
Author(s)
Van Der Werf, J H J
( author )
OrcID: https://orcid.org/0000-0003-2512-1696
Email: jvanderw@une.edu.au
UNE Id une-id:jvanderw
Banks, R G
( author )
OrcID: https://orcid.org/0000-0001-7303-033X
Email: rbanks@une.edu.au
UNE Id une-id:rbanks
Clark, S A
( author )
OrcID: https://orcid.org/0000-0001-8605-1738
Email: sclark37@une.edu.au
UNE Id une-id:sclark37
Lee, S J
Daetwyler, H D
Hayes, B J
Swan, A A
( author )
OrcID: https://orcid.org/0000-0001-8048-3169
Email: aswan@une.edu.au
UNE Id une-id:aswan
Type of document
Conference Publication
Language
en
Entity Type
Publication
Publisher
American Society of Animal Science
Place of publication
Champaign, United States of America
UNE publication id
une:18934
Abstract
Implementation of genomic selection in sheep breeding provides a number of challenges, compared to dairy cattle, because of the higher genetic diversity between and within sheep breeds, the cost of maintaining reference populations and the limited ability of individual breeders to invest in genotyping. Within this study, we compare theoretical and realized genomic prediction accuracies for traits in sheep and evaluate and describe implementation strategies for genetic selection programs. Based on modest genomic prediction accuracies and efficient genotyping strategies, it is feasible for well-designed breeding programs in sheep to apply genomic selection that are cost effective. A sustainable use of genomic selection in sheep requires cheap (i.e. low density) genotyping of large numbers of animals combined with imputation from high density information in select animals in order to provide predictability of breeding values that extend across the breed.
Link
Citation
Proceedings of the 10th World Congress on Genetics Applied to Livestock Production (WCGALP) (Species Breeding: Sheep and goats), p. 1-6
Start page
1
End page
6

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