Accuracy of genomic evaluation in pure line layers

Autor: Picard--Druet, David, HERRY, Florian, Varenne, Amandine, Herault, Frédéric, Allais, Sophie, Burlot, Thierry, Le Roy, Pascale
Přispěvatelé: Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] (PEGASE), AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA), Novogen, ANR-10-GENOM BTV-015 UtOpIGe, ANR-10-GENM-0015,UtOpIGe,Vers une Utilisation Optimale de l'Information Génomique dans les schémas pyramidaux(2010), AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: 11. World Congress on Genetics Applied to Livestock Production (WCGALP)
11. World Congress on Genetics Applied to Livestock Production (WCGALP), Feb 2018, Auckland, New Zealand
Proceedings of the World Congress on Genetics Applied to Livestock Production. 2018; 11. World Congress on Genetics Applied to Livestock Production (WCGALP), Auckland, NZL, 2018-02-11-2018-02-16, n.p.
Popis: Avian breeders are actually putting in place genomic selection in their selection schemes. One key parameter to optimize selection schemes is to correctly predict the accuracy of genomic evaluation. This paper presents results obtained by comparing accuracy of genetic and genomic evaluations on multiple traits, using several reference populations with different amount of phenotypic informations. Genetic parameters (heritability and genetic correlations) were observed, and found very stable. EBVs and GEBVs accuracies showed that genomic evaluation was each time more accurate than genetic evaluation, especially when phenotypic information was restreint. It was also found that the use of sexual chromosome genotype had a negative impact on traits evaluation for dams (no effect found on sires). In any case, genomic evaluation of breeding birds at birth seems to be a promising strategy for layers.
Databáze: OpenAIRE