Genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi-trait animal model
A crossbreeding experiment was carried out between two local strains of Mandarah (MN) and Matrouh (MA) chicken. Thirty-four sires and 400 dams from each strain were used to produce four genetic groups. Body weights of 3067 chicks at hatch (BW0), 4 (BW4), 8 (BW8), 12 (BW12) and 16 (BW16) weeks of age...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2002
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/66706 |
| _version_ | 1855533275936718848 |
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| author | Iraqui, M.M. Hanafi, M.S. Khalil, M.H. El-Labban, A.F. Ell-Sisy, M. |
| author_browse | El-Labban, A.F. Ell-Sisy, M. Hanafi, M.S. Iraqui, M.M. Khalil, M.H. |
| author_facet | Iraqui, M.M. Hanafi, M.S. Khalil, M.H. El-Labban, A.F. Ell-Sisy, M. |
| author_sort | Iraqui, M.M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A crossbreeding experiment was carried out between two local strains of Mandarah (MN) and Matrouh (MA) chicken. Thirty-four sires and 400 dams from each strain were used to produce four genetic groups. Body weights of 3067 chicks at hatch (BW0), 4 (BW4), 8 (BW8), 12 (BW12) and 16 (BW16) weeks of age and their daily gains in weight during the age intervals from 0-4 (DG4), 4-8 (DG8), 8-12 (DG12) and 12-16 (DG16) weeks were evaluated. Multi-trait animal model (MTAM) was used to estimate direct additive genetic (GI) and maternal additive genetic (GM) and direct heterosis (HI) effects. Heritabilities were estimated and breeding values (PBV) were also predicted. Estimates of Heritabilities (h2) for growth traits ranged from 0.14 to 0.58. The percentages of GM were in favour of the MA dams and ranged from –1.47 to –6.70 % for body weights and from –1.40 to –7.73 % for gains in weight. Estimates of HI (P |
| format | Journal Article |
| id | CGSpace66706 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2002 |
| publishDateRange | 2002 |
| publishDateSort | 2002 |
| record_format | dspace |
| spelling | CGSpace667062023-06-12T18:54:39Z Genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi-trait animal model Iraqui, M.M. Hanafi, M.S. Khalil, M.H. El-Labban, A.F. Ell-Sisy, M. poultry breeds genetics chickens egypt north africa heterosis additives breeding value growth A crossbreeding experiment was carried out between two local strains of Mandarah (MN) and Matrouh (MA) chicken. Thirty-four sires and 400 dams from each strain were used to produce four genetic groups. Body weights of 3067 chicks at hatch (BW0), 4 (BW4), 8 (BW8), 12 (BW12) and 16 (BW16) weeks of age and their daily gains in weight during the age intervals from 0-4 (DG4), 4-8 (DG8), 8-12 (DG12) and 12-16 (DG16) weeks were evaluated. Multi-trait animal model (MTAM) was used to estimate direct additive genetic (GI) and maternal additive genetic (GM) and direct heterosis (HI) effects. Heritabilities were estimated and breeding values (PBV) were also predicted. Estimates of Heritabilities (h2) for growth traits ranged from 0.14 to 0.58. The percentages of GM were in favour of the MA dams and ranged from –1.47 to –6.70 % for body weights and from –1.40 to –7.73 % for gains in weight. Estimates of HI (P 2002 2015-06-05T12:17:16Z 2015-06-05T12:17:16Z Journal Article https://hdl.handle.net/10568/66706 en Open Access Iraqui, M.M., Hanafi, M.S., Khalil, M.H., El-Labban, A.F. and Ell-Sisy. 2002. Genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi-trait animal model. Livestock Research for Rural Development 14(5): PP. 11. |
| spellingShingle | poultry breeds genetics chickens egypt north africa heterosis additives breeding value growth Iraqui, M.M. Hanafi, M.S. Khalil, M.H. El-Labban, A.F. Ell-Sisy, M. Genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi-trait animal model |
| title | Genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi-trait animal model |
| title_full | Genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi-trait animal model |
| title_fullStr | Genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi-trait animal model |
| title_full_unstemmed | Genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi-trait animal model |
| title_short | Genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi-trait animal model |
| title_sort | genetic evaluation of growth traits in a crossbreeding experiment involving two local strains of chickens using multi trait animal model |
| topic | poultry breeds genetics chickens egypt north africa heterosis additives breeding value growth |
| url | https://hdl.handle.net/10568/66706 |
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