Study of parents influence on some productive features of Friesian cows

From analysis of Records MAYAN MAGIC BALM of the Daughters Sires (Bandy.Thamer, 51, Bulbl, Gorge , Anber ,Roger , 71753 and 251) that are used in artificial in semination to the Friesian cows belong to AL - Latifia Company for animal to study the effect of the Sires on the Heifers Birth weight, total milk yield production , Daily milk yield ,first and second three month of milk production to study the persistency of milk production.The Sires were significantly Universal Microswitch Kit effect (P While the sires were significantly effected ( P.