تأثير وزن البيضة في بعض صفات الفقس لسلالة أمهات فروج اللحم كوب 700

الملخص EN

This study was conducted at a private hatchery in Baghdad, Iraq, during the period September 17th 2009 – October 10th 2009.

A total of 600 eggs of Cobb700 broiler breeders were divided equally into two groups according to egg weight {300 eggs of 71 gm mean weight as large group (L) & 300 eggs of 65 gm mean weight as medium group (M) } 2 replicates per each groups (150 egg/replicate).

Results showed that there were high significant difference (P<0.01) in egg weight and egg weight loss ratio between L & M.

There were significant (P<0.05) among the rate of hatchling chick weight to the hatching egg weight , average Materials Immunity .

No significant were recorded in the fertility, hatchability and embryo mortality