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This research aims to analyze variations in egg quality traits and their genetic parameters in White Leghorn hens over their laying cycle.

July 2, 2025Poultry ScienceOpen Access

Study on changes in egg quality traits and genetic parameters of white leghorn hens from 35 to 100 weeks of age

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Randomized trial analyzes egg quality traits in White Leghorn hens, suggesting insights for genetic improvement.

This research aims to analyze variations in egg quality traits and their genetic parameters in White Leghorn hens over their laying cycle.
Analyzed 11 egg quality traits in 2,577 hens at various ages (35, 40, 50, 60, 70, 80, 90, 100 weeks).
Evaluated heritability and phenotypic correlations among traits.
Conducted cluster analysis to group traits based on age-related patterns.
Essentials like eggshell strength, yolk color, and eggshell membrane thickness had low heritability (0.05-0.25).
Egg weight and yolk weight showed higher heritability (0.30-0.54), with significant age-related changes observed.
Grouping analysis revealed distinct phases in egg quality traits across the aging period.

Li et al. (2025) studied this question.

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