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Communication Dans Un Congrès Année : 2018

Accuracy of genomic evaluation in pure line layers

Résumé

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.
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Dates et versions

hal-01791814 , version 1 (14-05-2018)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

  • HAL Id : hal-01791814 , version 1
  • PRODINRA : 422270

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David Picard--Druet, Florian Herry, Amandine Varenne, Frédéric Herault, Sophie Allais, et al.. Accuracy of genomic evaluation in pure line layers. 11. World Congress on Genetics Applied to Livestock Production (WCGALP), Feb 2018, Auckland, New Zealand. ⟨hal-01791814⟩
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