Interaction between egg weight categories and storage periods significantly (pless than 0.05) highest early embryonic mortality was observed in seven days storage with small egg weight category in all production phases and the lowest in one day storage with all egg weight categories in all the production phases (Table 1).
Early embryonic mortality (Mean SE) influenced by 3 egg weight categories and storage periods at four production phases in Cobb broiler breeder train.
Incidence and classification of early embryonic mortality in broiler breeder chickens Brit.
Effect of sex ratio (T) and age (A) on fertility (F), hatchability of fertile eggs (FH), hatchability of total eggs (HT) and early embryonic mortality
(EEM), late embryonic mortality (LEM) and total embryonic mortality (TEM) in Leghorn (LG) and Baladi breeds of chickens raised in Riyadh area.