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Bibliothèque de la Faculté SNVST de L'UAMOB
Auteur Jean-Michel Astruc
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Documents disponibles écrits par cet auteur (1)
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Titre : |
Genomic selection experiment in Lacaune dairy sheep : Progeny test results of rams initially selected either on parent average or on genomic prediction |
Type de document : |
document électronique |
Auteurs : |
Guillaume G. Baloche, Auteur ; Jean-Michel Astruc, Auteur |
Editeur : |
American Society of Animal Science |
Année de publication : |
2013 |
Note générale : |
10. World Congress on Genetics Applied to Livestock Production (WCGALP) |
Langues : |
Anglais (eng) |
Catégories : |
571 Physiologie générale et sujets connexes Physiology and related subjects
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Tags : |
dairy sheep lacaune breed genomic selection experiment [q-bio] |
Index. décimale : |
571 |
Résumé : |
A genomic selection experiment was carried out for the AI dairy Lacaune rams born in 2011: within 46 sires, 200 and 128 sons have been progeny tested,respectively after usual parent average preselection (classical rams), or after a genomic preselection of around one third (genomic rams). The superiority of the genomic rams (GR) compared to classical rams (CR) for the total merit index (TMI) was underestimated by 58 % using BLUP versus using single-step GBLUP: the true breeding value superiority of GR compared to CR was estimated to 0.52 TMI standard deviation, so that only 24 % of GR were eliminated versus 48 % of CR according to the TMI threshold used to select the proven rams. |
En ligne : |
https://hal.inrae.fr/hal-02742682 |
Format de la ressource électronique : |
PDF |
Genomic selection experiment in Lacaune dairy sheep : Progeny test results of rams initially selected either on parent average or on genomic prediction [document électronique] / Guillaume G. Baloche, Auteur ; Jean-Michel Astruc, Auteur . - American Society of Animal Science, 2013. 10. World Congress on Genetics Applied to Livestock Production (WCGALP) Langues : Anglais ( eng)
Catégories : |
571 Physiologie générale et sujets connexes Physiology and related subjects
|
Tags : |
dairy sheep lacaune breed genomic selection experiment [q-bio] |
Index. décimale : |
571 |
Résumé : |
A genomic selection experiment was carried out for the AI dairy Lacaune rams born in 2011: within 46 sires, 200 and 128 sons have been progeny tested,respectively after usual parent average preselection (classical rams), or after a genomic preselection of around one third (genomic rams). The superiority of the genomic rams (GR) compared to classical rams (CR) for the total merit index (TMI) was underestimated by 58 % using BLUP versus using single-step GBLUP: the true breeding value superiority of GR compared to CR was estimated to 0.52 TMI standard deviation, so that only 24 % of GR were eliminated versus 48 % of CR according to the TMI threshold used to select the proven rams. |
En ligne : |
https://hal.inrae.fr/hal-02742682 |
Format de la ressource électronique : |
PDF |
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