Why do eggs have different colors?

Eggs come from chickens that eat different feeds and farms, and their shells show different colors because of the natural pigments deposited in the oviduct of hens Natural pigment deposition depends on the genes of the chicken Some breeds produce brown eggs, while others produce snow white eggs In fact, the inside of the eggs is the same, and the taste of the eggs laid by different chickens is not very different, because the taste is related to the feed the chickens eat There are three main colors of eggs Most of the eggs on the market are white or brown In fact, blue to green eggs can also be found, but they are mainly produced in chicken breeds from Chile The initial egg color was basically brown With the passage of time, people have the choice to breed chickens, and gradually evolved into white skin eggs In some cases, chickens with white earlobes produce white eggs, while eggs with red earlobes produce brown eggs, but this rule is not the same Size is not the deciding factor because many white skin eggs are produced by small breeders In addition, the color of the eggshell has nothing to do with the color and shape of the chicken When buying eggs on the market, it is not necessary to use color as the standard of nutritional value, because there is no difference in content quality In general, free range chickens produce healthier eggs because they eat more minerals in their food and naturally produced eggs In addition, it will be noted that the yolk color of farmers' fresh eggs is darker, but the yolk color of chicken farms is lighter, which is related to their feeding.