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International Journal of Poultry Science

Year: 2010 | Volume: 9 | Issue: 1 | Page No.: 77-81
DOI: 10.3923/ijps.2010.77.81
Mechanical and Ultrastructural Properties of Eggshell in Two Egyptian Native Breeds of Chicken
Lamiaa M. Radwan, M. M. Fathi, A. Galal and A. Zein El-Dein

Abstract: The objective of the study was to assess mechanical and ultrastructural properties of eggshell in Dandarawi and Fayoumi chicken breeds. At 30 weeks of age, 180 eggs (90 of each breed) were randomly chosen. The results showed that the Fayoumi eggs had significantly higher specific gravity and mechanical properties values (thickness and breaking strength of eggshell) than that of Dandarawi ones. With respect to ultrastructural traits, it could be noticed that the relative palisade layer (effective thickness) of Fayoumi eggs was significantly higher than that of Dandarawi ones. Opposite trend was noticed for relative cap layer. Concerning ultrastructural variants, the Fayoumi eggs owned shells with significantly higher values of confluence and cuffing traits. Conversely, the Dandarawi eggs have superior values of fusion, alignment and type B's traits than Fayoumi ones.

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How to cite this article
Lamiaa M. Radwan, M. M. Fathi, A. Galal and A. Zein El-Dein, 2010. Mechanical and Ultrastructural Properties of Eggshell in Two Egyptian Native Breeds of Chicken. International Journal of Poultry Science, 9: 77-81.

Keywords: Native breeds, eggshell, mechanical traits and ultrastructural

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