Genomic evaluation for egg weight in crossbred layers receiving various diets

Hervé Chapuis (1) , Frédéric Herault (2) , Amandine Varenne (3) , Hélène Romé (2) , C. Alleno (4) , Patrice Dehais (5) , Alain Vignal (5) , T Burlot (3) , Pascale Le Roy (2)

1 SYSAAF - Syndicat des Sélectionneurs Avicoles et Aquacoles Français
2 PEGASE - Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes]
3 Novogen
4 Zootests
5 GenPhySE - Génétique Physiologie et Systèmes d'Elevage

This paper presents the preliminary results obtained during the implementation of a genomic evaluation for egg weight in laying hens. One originality of the project is to have used a population of crossbred hens to estimate GEBV of purebred sires. Moreover, hens were divided in 2 groups fed with 2 diets of Low Energy and High Energy. The genomic evaluation from performance of crossbred daughters is more accurate than traditional genetic evaluation in purebred. The interaction genotype x diet seems to be low.

Domaines: Sciences du Vivant [q-bio]

Hervé Chapuis, Frédéric Herault, Amandine Varenne, Hélène Romé, C. Alleno, et al.. Genomic evaluation for egg weight in crossbred layers receiving various diets. 10. World Congress on Genetics Applied to Livestock Production (WCGALP), Aug 2014, Vancouver, Canada. American Society of Animal Science, 2014, Proceeding of the 10th World Congress on Genetics Applied to Livestock Production. ⟨hal-01210944⟩