It is not a fact.
It is a myth that chickens with brown feathers produce brown eggs while hens with white feathers lay white eggs.
The truth is that pigments, genetics, food, and environmental variables are the main determinants of eggshell colour.
The genetic makeup of a chicken determines the hue of its eggs, which is passed down from generation to generation.
For instance, leghorn chickens lay white eggs, whereas Sussex, Barnevelder, and Rhode Island Red hens are known to lay brown eggs.
There are also pink, blue, and green chicken eggs available!
Furthermore, a bird that produces brown eggs will always lay eggs of the same hue.
White or blue calcium carbonate is used to make all eggshells.
Pigments like biliverdin and porphyrins give the eggshell a variety of hues. They are placed within the chicken’s oviduct either during or after shell production.
As the egg is forming, different pigment colours are applied to its surface to generate the other hues.
Although studies have shown that the colour of a chicken’s earlobe would be a better determinant of the eggshell’s hue, the colour of a chicken feather does not necessarily represent the colour of the eggshell.
A chicken with a white ear lobe will often produce white eggs; those with a red lobe will typically lay brown eggs.
Furthermore, the egg’s nutritional content is unaffected by the colour of the eggshell. Any egg is a wonderful source of nutrients, vitamins, and protein.
