Comparative performance of F1 Friesian x zebu heifers in Ethiopia
Presents comparative data on productive and reproductive traits of Friesian x zebu and pure zebu heifers of 14 dairy cooperatives in central Ethiopia. Discussions and data on milk yield, lactation length, milking disposition and milk let-down; age at puberty and at first calving; services per concep...
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Cambridge University Press
1983
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| Acceso en línea: | https://hdl.handle.net/10568/66713 |
| Sumario: | Presents comparative data on productive and reproductive traits of Friesian x zebu and pure zebu heifers of 14 dairy cooperatives in central Ethiopia. Discussions and data on milk yield, lactation length, milking disposition and milk let-down; age at puberty and at first calving; services per conception and conception rates; days between calving and first oestrous and conception; gestation length; calving interval; length of oestrous cycle; calving difficulties and ability to withstand drought periods; and birth weights of calves included. |
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