The hen's egg
Eggs and egg products
Article REF: F7010 V1
The hen's egg
Eggs and egg products

Authors : Philippe LAFON, François LAFON

Publication date: December 10, 1999 | Lire en français

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2. The hen's egg

The structure and composition of a hen's egg are shown in figure 1 and table 2 .

2.1 Shell color

It's all a question of the breed of hen, and feed plays no part. These are the Leghorns, small, highly productive white hens that lay white-shelled eggs. So do Bresse hens.

White shells are translucent when candled, making it easier to eliminate internal defects such as blood spots. White-shelled eggs need to be produced cleanly, as the stains are very visible. The USA has solved this problem by washing...

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