EXPECTED IMPACT OF SELECTION FOR MILK YIELD ON REPRODUCTIVE PERFORMANCE TRAITS IN HOLSTEIN FRIESIAN COWS UNDER EGYPTIAN CONDITIONS

Document Type : Original Article

Authors

• Amina Habib
• G. Gouda
• A. R. Shemeis
• Manal El-Sayed

Department of Animal Production, Faculty of Agriculture, Ain Shams University, P.O. Box 68 Hadayek Shoubra,11241 Cairo, Egypt

Keywords

• Holstein-Frisian cows
• productive and reproductive performance
• genetic parameters
• direct selection
• correlated response