In an experiment with three strains of Dominant genotype the effect of oviposition on egg quality characteristics was investigated. Laying hens were housed on litter. Eggs were gathered in a 28-day interval, every two days all produced eggs The time of oviposition was influenced by genotype. There were interactions between the time of oviposition and genotype in egg weight. Eggs laid in the morning at 6.00 were significantly heavier in comparison with eggs laid in the afternoon. The heaviest eggs were produced by the Plymouth Rock strain. Significant interactions were observed in eggshell weight when the heaviest eggshell was in afternoon eggs and F1 genotype. The egg shape index was also affected by the genotype and time of oviposition. Among the albumen quality characteristics only Haugh Units were influenced by genotype. The genotype significantly affected the yolk index which was the highest in F1 genotype.