Abstract
The research was conducted on 71 Friesian cows reared in one of the cattle in the area of civil Qushtapa / Erbil for the years 2009 and 2010 to study the effect of Non genetic factors (year of calving, age at first birth, the sequence of birth, season of birth, and sex) in the daily milk production, in addition to study the effect of number of vaccination requested for fertilization calving interval and dry period in the milk production. The overall average of daily milk production was (19.958) kg. The results showed that for the year of calving, the sequence of birth and season of birth have a significant (p
