Effect of different lines of local Iraqi chicken and Isa brown on egg internal quality

Abstract EN

A total of 500 eggs was obtained from three Iraqi local chickens distributed as feather colors and Isa Brown to determine the internal egg quality and their correlation.

Pure Black= group1; Black with Brown Neck= group 2; White= group 3 and Isa Brown = group 4 at 70-80 weeks age old were reared under similar management.

Statical analysis of data in this study shows significant (p<0.05) differences in egg weight, yolk weight and shell weight between lines.

While, differences between groups in yolk percentage, albumin percentages, shell traits (weight, thickness and percentage) were not significant.

The positive correlation coefficients between egg weight were significant (p<0.01) with yolk and albumin weight, and (p<0.05) with shell weight.

Also, the correlation between yolk weight and shell weight was significantly (p<0.01) positive, while the correlation between albumin weight with shell weight was negatively non significant.

The positive correlation was observed between egg weight with yolk and shell percentages, while, the correlation between yolk with albumin percentages, and albumin percentages with shell percentages were negatively significant (p<0.01).

The results from this study indicated that the different groups of local chickens and Isa brown significantly affected egg weight and some internal egg traits.