What determines color of brown or white egg shells?

I knew the reason why but had a hard time explaining it so I went to a learning site and found this for you. I hope that it helps.

Chicken Breeds and the Colors of Their Eggs

Egg color is characteristic of the breed of chicken producing the egg. The genetic background of the hen (the hen’s “mother and father”) determines the inherited egg color produced. Egg color or pigment is secreted and applied to the final layers of the eggshell by the hen. The location of this pigment in the outer layer can be demonstrated by an experiment with a brown egg. The egg’s color can be removed by soaking a brown egg in vinegar, which dissolves the outer layer of the shell.

Generally, the color of the chicken’s earlobe accurately predicts the color of egg the hen will produce. Hens with white earlobes produce white eggs while hens with red earlobes produce brown eggs. Currently we are unaware of a book that displays pictures of eggs from different breeds of chickens. However, there is an excellent book that details and pictures the size and color of hundreds of species of birds.

What determines color of brown or white egg shells?
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Reply:The breed of chicken. Some chickens lay pastel eggs. Pink, blues, greens.......
Reply:Genetics.
Reply:What kind of chicken laid the egg.



I think the majority of birds do lay white colored eggs but the kind of species it is is the deremining factor.

Like a Robin has a blue speckled colored egg.

Emu's have dark green colored eggs.
Reply:The breed of chicken
Reply:~colour of egg shell

the colour of egg shell ranges from white to brown, depending on the breed of the hen. The colour, however, does not make any difference to the quality of the egg.
Reply:The shell is laid down by shell glands. In an average laying hen the process of shell formation takes around 20 hours. Pigmentation is added to the shell, coloring it any of a variety of colors and patterns depending on species.
Reply:The type of chicken silly!
Reply:It depends on wether the chicken drinks vanilla or chocolate milk.
Reply:depends if its healthy if its brown it was not a healthy chicken
Reply:The type of chicken it is. Brown,white, speckled. As long as the eggs taste good I am happy! Cockadoodledo!!

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