El-Said Z. M. Oudah
Animal Production Department, Faculty of Agriculture, Mansoura University,
EI-Mansoura, Postal Code: 35 516, Egypt
Nazem A. Shalaby
Animal Production Department, Faculty of Agriculture, Mansoura University,
EI-Mansoura, Postal Code: 35 516, Egypt
Mohamed A. Mostafa
Animal Production Department, Faculty of Agriculture, Mansoura University,
EI-Mansoura, Postal Code: 35 516, Egypt
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How to cite this article
El-Said Z. M. Oudah, Nazem A. Shalaby and Mohamed A. Mostafa, 2001. Genetic and non Genetic Factors Affecting Days Open, Number of Services per Conception
and Age at First Calving in a Herd of Holstien-Friesian Cattles. Pakistan Journal of Biological Sciences, 4: 740-744.
DOI: 10.3923/pjbs.2001.740.744
URL: https://scialert.net/abstract/?doi=pjbs.2001.740.744
DOI: 10.3923/pjbs.2001.740.744
URL: https://scialert.net/abstract/?doi=pjbs.2001.740.744