Ibrahim, M., Rushdi, H., Abdel-Salam, S., Abou-Bakr, S. (2009). GENETIC AND PHENOTYPIC TRENDS OF CALVING INTERVAL AND AGE AT FIRST CALVING IN A COMMERCIAL HOLSTEIN HERD. test, 46(2), 103-112. doi: 10.21608/ejap.2009.94034
M. A.M. Ibrahim; H. E. Rushdi; S. A.M. Abdel-Salam; S. Abou-Bakr. "GENETIC AND PHENOTYPIC TRENDS OF CALVING INTERVAL AND AGE AT FIRST CALVING IN A COMMERCIAL HOLSTEIN HERD". test, 46, 2, 2009, 103-112. doi: 10.21608/ejap.2009.94034
Ibrahim, M., Rushdi, H., Abdel-Salam, S., Abou-Bakr, S. (2009). 'GENETIC AND PHENOTYPIC TRENDS OF CALVING INTERVAL AND AGE AT FIRST CALVING IN A COMMERCIAL HOLSTEIN HERD', test, 46(2), pp. 103-112. doi: 10.21608/ejap.2009.94034
Ibrahim, M., Rushdi, H., Abdel-Salam, S., Abou-Bakr, S. GENETIC AND PHENOTYPIC TRENDS OF CALVING INTERVAL AND AGE AT FIRST CALVING IN A COMMERCIAL HOLSTEIN HERD. test, 2009; 46(2): 103-112. doi: 10.21608/ejap.2009.94034

GENETIC AND PHENOTYPIC TRENDS OF CALVING INTERVAL AND AGE AT FIRST CALVING IN A COMMERCIAL HOLSTEIN HERD

Egyptian Journal of Animal Production
Article 3, Volume 46, Issue 2, June 2009, Pages 103-112    PDF (187.03 K)
Document Type: Original Article
DOI: 10.21608/ejap.2009.94034
Authors
M. A.M. Ibrahim1; H. E. Rushdi2; S. A.M. Abdel-Salam3; S. Abou-Bakr* 4
1Department of Animal production, Faculty of Agriculture, Cairo University, Giza, Egypt
2Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
3Department of Animal Production, Faculty of Agriculture, Cairo University
4Department of Animal production, Faculty of Agriculture,Cairo University , Giza, Egypt
Keywords
Reproductive traits; genetic trend; phenotypic trend; Holstein
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