EFFEECT OF EGG WEIGHT ON SOME HATCHERY TRAITS OF BROILER BREEDER COBB 700 | ||
| iraqi poultry sciences journal | ||
| Article 1, Volume 6, Issue 1, December 2012, Pages 13-20 | ||
| Author | ||
| Ruwayda G.Rauf Ayad S. Ahmed | ||
| Abstract | ||
| 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. | ||
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