GENETIC AND PHENOTYPIC TRENDS OF 305-DAY MILK YIELD OF HOLSTEIN COWS RAISED AT COMMERCIAL FARM IN EGYPT

Document Type : Original Article

Author

• Samy Abou-Bakr

Animal Production Department, Faculty of Agriculture, Cairo University, Giza, Egypt

Keywords

• Heritability
• genetic and phenotypic trends
• 305- day milk yield
• Holstein cows