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Just so everyone knows...... Since we have a lot of new people to chickens and this forum.
Eggs come in 2 Base colors: White and Blue
Pink to Dark Brown eggs are paint on white base shell
Mint to Olive eggs are a brown paint job on a blue base shell
Excerpts from people who know more then I do:
Most shell colors are the result of the pigments called porphyrins being deposited while the eggs are in the process of formation.
In the case of the Rhode Island Red, the brown pigment protoporphyrin, derived from haemoglobin in the blood, is what gives the shell its light brown colour.
Blue egg layers produces a pigment called oocyanin, which is a product of bile formation, and results in blue or bluish-green eggs. The color goes right through the shell, making the eggs difficult to candle during incubation.
fun test for those who need to see to believe....
Take a scrubby and scrub the outside of a brown egg...... It will turn white.
Yes CR you have WHITE EGGS that just went to the paint factory