2. The hen's egg
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 almost all its eggs. But this practice...
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The hen's egg
Egg products
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