Reference : Integration of foreign breeding values for stallions into the Belgian genetic evaluation...
Scientific congresses and symposiums : Paper published in a book
Life sciences : Animal production & animal husbandry
Life sciences : Genetics & genetic processes
http://hdl.handle.net/2268/99140
Integration of foreign breeding values for stallions into the Belgian genetic evaluation for jumping horses
English
Vandenplas, Jérémie mailto [Université de Liège - ULg > Sciences agronomiques > Zootechnie >]
Janssens, Steven mailto [ > > ]
Gengler, Nicolas mailto [Université de Liège - ULg > Sciences agronomiques > Zootechnie >]
Aug-2011
Book of Abstracts of the 62nd Annual Meeting of the European Federation of Animal Science
Wageningen Academic Publishers
No
No
International
978-90-8686-177-4
Wageningen
The Netherlands
62nd Annual Meeting of the European Federation of Animal Science
du 29 août 2011 au 2 septembre 2011
European Federation of Animal Science
Stavanger
Norway
[en] Integration ; external information ; jumping horses
[en] The aim of this study was to test the integration of foreign estimated breeding values (EBV) for stallions into the Belgian genetic evaluation for jumping horses. Belgian breeders import horses from neighbouring countries for which foreign information is needed as prior to estimate a more accurate EBV. The Belgian model is a bivariate repeatability BLUP animal model. For the year 2009, pedigree and data files contained 101 382 horses and 712 212 performances. 98 French and 67 Dutch stallions were selected and their foreign EBVs were converted into Belgian national trait. Associated reliabilities were also estimated. A Bayesian approach (Legarra et al., 2007) was applied to integrate this prior information into the Belgian evaluation. It led to a slight modification of the average EBV and of the standard deviation for the whole population. It also led to a new Belgian ranking of the foreign stallions more similar to foreign rankings. However, the adequacy of the Belgian model was not damaged. With regards to prediction ability, Bayesian evaluations using conversion equation estimated by Weighted Least Squares procedure predicted the best traditional EBVs of the year 2009 for the French stallions. For the Dutch ones, it were the evaluations associated to the conversion equation based on Wilmink et al. (1986). For both countries, Bayesian evaluations using conversion equation based on Goddard (1985) improved the most the stability of EBVs. Finally, integration of French and Dutch information improved reliabilities of the Bayesian EBVs of at least 5% and 2% for French and Dutch stallions, respectively. These results confirm the interest to integrate foreign information into the Belgian evaluation for jumping horses.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers
http://hdl.handle.net/2268/99140
http://www.eaap2011.com/media/book_of_abstracts_eaap_2011.pdf

There is no file associated with this reference.

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.