Utilization of exotic germplasm for milk production in the tropics
Results from 80 Reports in the literature on crossbreeding in the tropics were summarised to study the relationship between dairy performance and proportion of exotic genes. Grades higher than 1/2 exotic did not perform any worse than the Fl in all traits, except calving interval which was longer in...
| Autor principal: | |
|---|---|
| Formato: | Conference Paper |
| Lenguaje: | Francés |
| Publicado: |
International Committee for World Congresses on Genetics Applied to Livestock Production
1998
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/51304 |
| _version_ | 1855532047843459072 |
|---|---|
| author | Rege, J.E.O. |
| author_browse | Rege, J.E.O. |
| author_facet | Rege, J.E.O. |
| author_sort | Rege, J.E.O. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Results from 80 Reports in the literature on crossbreeding in the tropics were summarised to study the relationship between dairy performance and proportion of exotic genes. Grades higher than 1/2 exotic did not perform any worse than the Fl in all traits, except calving interval which was longer in higher grades. The relationship between performance and proportion of European genes differed among breeds. The Friesian crosses were not any better than crosses involving Jersey, Brown Swiss, Ayrshire or Red Dane. F2 performance was lower than that of F1 but subsequent generations (F3 and F4) were not any worse than F2.
. |
| format | Conference Paper |
| id | CGSpace51304 |
| institution | CGIAR Consortium |
| language | Francés |
| publishDate | 1998 |
| publishDateRange | 1998 |
| publishDateSort | 1998 |
| publisher | International Committee for World Congresses on Genetics Applied to Livestock Production |
| publisherStr | International Committee for World Congresses on Genetics Applied to Livestock Production |
| record_format | dspace |
| spelling | CGSpace513042021-08-09T04:42:57Z Utilization of exotic germplasm for milk production in the tropics Rege, J.E.O. zebu cattle cattle crossbreeding milk production Results from 80 Reports in the literature on crossbreeding in the tropics were summarised to study the relationship between dairy performance and proportion of exotic genes. Grades higher than 1/2 exotic did not perform any worse than the Fl in all traits, except calving interval which was longer in higher grades. The relationship between performance and proportion of European genes differed among breeds. The Friesian crosses were not any better than crosses involving Jersey, Brown Swiss, Ayrshire or Red Dane. F2 performance was lower than that of F1 but subsequent generations (F3 and F4) were not any worse than F2. . 1998 2014-10-31T06:22:23Z 2014-10-31T06:22:23Z Conference Paper https://hdl.handle.net/10568/51304 fr Limited Access International Committee for World Congresses on Genetics Applied to Livestock Production |
| spellingShingle | zebu cattle cattle crossbreeding milk production Rege, J.E.O. Utilization of exotic germplasm for milk production in the tropics |
| title | Utilization of exotic germplasm for milk production in the tropics |
| title_full | Utilization of exotic germplasm for milk production in the tropics |
| title_fullStr | Utilization of exotic germplasm for milk production in the tropics |
| title_full_unstemmed | Utilization of exotic germplasm for milk production in the tropics |
| title_short | Utilization of exotic germplasm for milk production in the tropics |
| title_sort | utilization of exotic germplasm for milk production in the tropics |
| topic | zebu cattle cattle crossbreeding milk production |
| url | https://hdl.handle.net/10568/51304 |
| work_keys_str_mv | AT regejeo utilizationofexoticgermplasmformilkproductioninthetropics |