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Título: | Implementation of Optimum Contributions Selection in endangered local breeds The case of the Menorca Horse population |
Autor: | Solé, Marina; Valera, M.; Gómez, M. Dolores; Cervantes, Isabel; Fernández, Jesús CSIC ORCID | Palabras clave: | Optimal contributions Conservation Selection Dressage Local breeds |
Fecha de publicación: | 2013 | Editor: | John Wiley & Sons | Citación: | Journal of Animal Breeding and Genetics 130: 218-226 (2013) | Resumen: | Limiting the inbreeding rate ({increment}F) while maximizing genetic gain for any trait of economic interest is especially important in small populations of local breeds, like the Menorca Horse. In this breed, dressage performance is important for the profitability of the breed and should be accounted in the selection criterion. The aim of this study was to assess if a breeding programme aiming at improved dressage performance is feasible in such a small breed. To perform the analysis, animals that were currently available for breeding (between 3 and 20 years) were used. Selection was based on the estimated breeding values for dressage obtained by BLUP. The pedigree and molecular coancestry between potential breeding horses was used (separately or in combination) to account for the restriction on {increment}F. Results show that it is possible to avoid large increases in inbreeding while obtaining acceptable levels of genetic gain (i.e. a {increment}F of 1% would imply a maximum loss in genetic gain of 2%). Thus, the Menorca Horse population is suitable for a management procedure which jointly optimizes the response to selection and the levels of variability and inbreeding (Optimal Contribution selection). Regarding the source of information used to calculate the relationships, molecular information would provide a greater range of solutions to increase genetic gain than using pedigree coancestry (gain was 1-4% higher for the same levels of restriction on the increase in inbreeding). © 2012 Blackwell Verlag GmbH. | URI: | http://hdl.handle.net/10261/290396 | DOI: | 10.1111/jbg.12023 | ISSN: | 0931-2668 | E-ISSN: | 1439-0388 |
Aparece en las colecciones: | (INIA) Artículos |
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