Including genotypic information in genetic evaluations increases the accuracy of sheep breeding values.
accuracy change
animal welfare
breeding values
genetic parameters
genomic selection
meat sheep
sheep breeding
single-step
Journal
Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie
ISSN: 1439-0388
Titre abrégé: J Anim Breed Genet
Pays: Germany
ID NLM: 100955807
Informations de publication
Date de publication:
Jul 2023
Jul 2023
Historique:
received:
22
09
2022
accepted:
08
03
2023
medline:
16
6
2023
pubmed:
2
4
2023
entrez:
1
4
2023
Statut:
ppublish
Résumé
The impact of inclusion of genome-wide genotypes into breeding value predictions for UK Texel sheep is addressed in this article. The main aim was to investigate the level of change in the accuracy values for EBVs when information from animal genotypes is incorporated into the genetic evaluations. New genetic parameters for a range of lamb growth, carcass composition and health traits are described and applied in the estimation of conventional breeding values (EBVs) for almost 822,000 animals as well as genomic breeding values (gEBVs) after adding 10,143 genotypes. Principal component analyses showed that there are no major distinct groups; hence, the population is mainly homogenous and genetically well-linked. Results suggested that the highest change in accuracy was observed for the animals that are not phenotyped but have good links to the reference population. This was seen especially for the lowly heritable health traits thereby proving that the use of genotypes in breeding values estimation may accelerate the genetic gain by producing more accurate values especially for young, un-phenotyped animals.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
462-471Subventions
Organisme : Biotechnology and Biological Sciences Research Council
Pays : United Kingdom
Informations de copyright
© 2023 The Authors. Journal of Animal Breeding and Genetics published by John Wiley & Sons Ltd.
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