On-station within-breed selection works in Africa: the case of the Horro chicken breeding program in Ethiopia
The with-in selection also known as mass-selection has been considered as the less complex approach being applied for many years in livestock species and yielded significant genetic gains. In Africa, the extent to which mass- selection applied in the genetic improvement of chicken for better perform...
| Main Authors: | , |
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| Format: | Conference Paper |
| Language: | Inglés |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/106372 |
| _version_ | 1855518333203382272 |
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| author | Esatu, Wondmeneh Dessie, Tadelle |
| author_browse | Dessie, Tadelle Esatu, Wondmeneh |
| author_facet | Esatu, Wondmeneh Dessie, Tadelle |
| author_sort | Esatu, Wondmeneh |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The with-in selection also known as mass-selection has been considered as the less complex approach being applied for many years in livestock species and yielded significant genetic gains. In Africa, the extent to which mass- selection applied in the genetic improvement of chicken for better performance is very limited. Horro breed improvement program in Ethiopia can be a successful attempt to improve an indigenous chicken for farmers’ preferred traits. Age at first egg, Egg production, Body weight, and Survival were identified by local farmers. Since 2008, a with-in a selective breeding program was conducted at the Debre Zeit Agricultural Research Center under station with a breeding goal containing two most important traits; body weight at 16 weeks of age and egg number at 45 weeks of age. An evaluation of the program after 6 generations of selection has shown a 95% increase in body weight and a 123% increase in egg production in the improved strain as compared to unimproved ones. Further, the improved strain had shown a high advantage over the local chicken under farmers management that covers a wider agro-ecologies in Ethiopia under the African Chicken Genetic Gains Program (ACGG). Also, the whole genome sequence of generation 7 chicken has shown a positive signature of selection related to the egg production and immune response and adaptation traits. The development of the Horro breed is a success and the work on the Horro breed will be used as a benchmark for improving other indigenous chicken genetic resources. |
| format | Conference Paper |
| id | CGSpace106372 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| record_format | dspace |
| spelling | CGSpace1063722024-03-04T07:43:08Z On-station within-breed selection works in Africa: the case of the Horro chicken breeding program in Ethiopia Esatu, Wondmeneh Dessie, Tadelle animal breeding breeds chickens poultry livestock indigenous breeds genetics The with-in selection also known as mass-selection has been considered as the less complex approach being applied for many years in livestock species and yielded significant genetic gains. In Africa, the extent to which mass- selection applied in the genetic improvement of chicken for better performance is very limited. Horro breed improvement program in Ethiopia can be a successful attempt to improve an indigenous chicken for farmers’ preferred traits. Age at first egg, Egg production, Body weight, and Survival were identified by local farmers. Since 2008, a with-in a selective breeding program was conducted at the Debre Zeit Agricultural Research Center under station with a breeding goal containing two most important traits; body weight at 16 weeks of age and egg number at 45 weeks of age. An evaluation of the program after 6 generations of selection has shown a 95% increase in body weight and a 123% increase in egg production in the improved strain as compared to unimproved ones. Further, the improved strain had shown a high advantage over the local chicken under farmers management that covers a wider agro-ecologies in Ethiopia under the African Chicken Genetic Gains Program (ACGG). Also, the whole genome sequence of generation 7 chicken has shown a positive signature of selection related to the egg production and immune response and adaptation traits. The development of the Horro breed is a success and the work on the Horro breed will be used as a benchmark for improving other indigenous chicken genetic resources. 2019-08-02 2020-01-03T11:10:13Z 2020-01-03T11:10:13Z Conference Paper https://hdl.handle.net/10568/106372 en Limited Access Esatu, W. and Dessie, T. 2019. On-station within-breed selection works in Africa: The case of the Horro chicken breeding program in Ethiopia. Paper presented at the Seventh All Africa conference on Animal Agriculture, Accra, Ghana, 29 July-2 August 2019. |
| spellingShingle | animal breeding breeds chickens poultry livestock indigenous breeds genetics Esatu, Wondmeneh Dessie, Tadelle On-station within-breed selection works in Africa: the case of the Horro chicken breeding program in Ethiopia |
| title | On-station within-breed selection works in Africa: the case of the Horro chicken breeding program in Ethiopia |
| title_full | On-station within-breed selection works in Africa: the case of the Horro chicken breeding program in Ethiopia |
| title_fullStr | On-station within-breed selection works in Africa: the case of the Horro chicken breeding program in Ethiopia |
| title_full_unstemmed | On-station within-breed selection works in Africa: the case of the Horro chicken breeding program in Ethiopia |
| title_short | On-station within-breed selection works in Africa: the case of the Horro chicken breeding program in Ethiopia |
| title_sort | on station within breed selection works in africa the case of the horro chicken breeding program in ethiopia |
| topic | animal breeding breeds chickens poultry livestock indigenous breeds genetics |
| url | https://hdl.handle.net/10568/106372 |
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