A STUDY ON PRODUCTION AND REPRODUCTION TRAITS OF FRIESIAN CATTLE IN EGYPT
A total of 1834 lactation records of Holstein cows were used for studying the random effects of sire and cow within sire and the fixed effects of year of calving, month of calving and parity on 305 day milk yield (305-dMy), lactation period (LP), dry period (DP), days open (DO), number of service...
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| Principais autores: | , , |
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| Formato: | Artigo |
| Idioma: | Árabe |
| Publicado em: |
Mansoura University, Faculty of Agriculture
2002-11-01
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| coleção: | Journal of Animal and Poultry Production |
| Assuntos: | |
| Acesso em linha: | https://jappmu.journals.ekb.eg/article_257096_6b65d00fb8f338fefa8c58c8f9e06262.pdf |
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