Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers
Pedigree recording and genetic selection in village flocks of smallholder farmers have been deemed infeasible by researchers and development workers. This is mainly due to the difficulty of sire identification under uncontrolled village breeding practices. A cooperative village sheep-breeding scheme...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2014
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/67379 |
| _version_ | 1855537870858616832 |
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| author | Gizaw, Solomon Goshme, Shenkute Getachew, T. Haile, Aynalem Rischkowsky, Barbara A. Arendonk, Johan A.M. van Valle-Zárate, A. Dessie, Tadelle Okeyo Mwai, Ally |
| author_browse | Arendonk, Johan A.M. van Dessie, Tadelle Getachew, T. Gizaw, Solomon Goshme, Shenkute Haile, Aynalem Okeyo Mwai, Ally Rischkowsky, Barbara A. Valle-Zárate, A. |
| author_facet | Gizaw, Solomon Goshme, Shenkute Getachew, T. Haile, Aynalem Rischkowsky, Barbara A. Arendonk, Johan A.M. van Valle-Zárate, A. Dessie, Tadelle Okeyo Mwai, Ally |
| author_sort | Gizaw, Solomon |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Pedigree recording and genetic selection in village flocks of smallholder farmers have been deemed infeasible by researchers and development workers. This is mainly due to the difficulty of sire identification under uncontrolled village breeding practices. A cooperative village sheep-breeding scheme was designed to achieve controlled breeding and implemented for Menz sheep of Ethiopia in 2009. In this paper, we evaluated the reliability of pedigree recording in village flocks by comparing genetic parameters estimated from data sets collected in the cooperative village and in a nucleus flock maintained under controlled breeding. Effectiveness of selection in the cooperative village was evaluated based on trends in breeding values over generations. Heritability estimates for 6-month weight recorded in the village and the nucleus flock were very similar. There was an increasing trend over generations in average estimated breeding values for 6-month weight in the village flocks. These results have a number of implications: the pedigree recorded in the village flocks was reliable; genetic parameters, which have so far been estimated based on nucleus data sets, can be estimated based on village recording; and appreciable genetic improvement could be achieved in village sheep selection programs under low-input smallholder farming systems. |
| format | Journal Article |
| id | CGSpace67379 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace673792023-12-08T19:36:04Z Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers Gizaw, Solomon Goshme, Shenkute Getachew, T. Haile, Aynalem Rischkowsky, Barbara A. Arendonk, Johan A.M. van Valle-Zárate, A. Dessie, Tadelle Okeyo Mwai, Ally sheep Pedigree recording and genetic selection in village flocks of smallholder farmers have been deemed infeasible by researchers and development workers. This is mainly due to the difficulty of sire identification under uncontrolled village breeding practices. A cooperative village sheep-breeding scheme was designed to achieve controlled breeding and implemented for Menz sheep of Ethiopia in 2009. In this paper, we evaluated the reliability of pedigree recording in village flocks by comparing genetic parameters estimated from data sets collected in the cooperative village and in a nucleus flock maintained under controlled breeding. Effectiveness of selection in the cooperative village was evaluated based on trends in breeding values over generations. Heritability estimates for 6-month weight recorded in the village and the nucleus flock were very similar. There was an increasing trend over generations in average estimated breeding values for 6-month weight in the village flocks. These results have a number of implications: the pedigree recorded in the village flocks was reliable; genetic parameters, which have so far been estimated based on nucleus data sets, can be estimated based on village recording; and appreciable genetic improvement could be achieved in village sheep selection programs under low-input smallholder farming systems. 2014-06-15 2015-07-27T07:48:55Z 2015-07-27T07:48:55Z Journal Article https://hdl.handle.net/10568/67379 en Limited Access Springer Gizaw, S., Goshme, S., Getachew, T., Haile, A., Rischkowsky, B., Arendonk, J. van, Valle-Zárate, A., Dessie, T. and Okeyo, A.M. 2014. Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers. Tropical Animal Health and Production 46(5):809-814. |
| spellingShingle | sheep Gizaw, Solomon Goshme, Shenkute Getachew, T. Haile, Aynalem Rischkowsky, Barbara A. Arendonk, Johan A.M. van Valle-Zárate, A. Dessie, Tadelle Okeyo Mwai, Ally Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers |
| title | Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers |
| title_full | Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers |
| title_fullStr | Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers |
| title_full_unstemmed | Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers |
| title_short | Feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers |
| title_sort | feasibility of pedigree recording and genetic selection in village sheep flocks of smallholder farmers |
| topic | sheep |
| url | https://hdl.handle.net/10568/67379 |
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