EVALUATING THE GEOMETRICAL AND EGG QUALITY CHARACTERS FOR TWO DEVELOPED LAYING STRAINS

Document Type : Original Article

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Anim. Prod. Res. Inst., Minis. of Agric., Giza, Egypt

Abstract

This study aimed to evaluate the egg quality traits of Golden Sabahia (GS) and Silver Sabahia (SS) as new developed Egyptian chicken strains at 36, 46, and 56 ‎ wks of age. Four hundred–eighty eggs were randomly collected from GS and SS chickens to determine external and internal egg quality traits and to calculate the geometrical egg parameters. Results showed that the(GS) strain had significantly greater egg weight, diameter egg (DG), and egg surface area (S) compared to those of SS strain. The yolk (weight and index %), albumen (weight, height, and Haugh unit), and eggshell weight values of GS eggs were significantly higher than those of the SS strain. As expected, internal and external qualities were increased by advances age. In conclusion, the geometrical parameters of egg quality for GS and SS strains may be taken into account for improving the hatchability of the expected commercial breed. Also, it is expected from the mentioned results of egg quality that Silver Sabahia could be valid become maternal line and Golden Sabahia as paternal line for producing commercial egg-type breed. 

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