For Example: In chickens, the allele for black feathers is co-dominant with the allele for white feathers.

This is because Back and white are both incomplete dominant traits. When you cross these together, all (100%) of the offspring will be heterozygous blue.

When we mate a black chicken with a splash chicken, the chicks are blue. The blue chicken is heterozygous and can pass on either her black gene or her splash gene to her offspring.

Plymouth Rock chickens include the Barred Rock and several other varieties. Barred Rocks are recognizable by their black and white stripes that make them stand out in the flock.

The biggest symbolism attributed to the chicken may surprise you. Because of their nature and the purpose for which they are often raised, chickens have become symbols of the uncertainty of life. That is, you may live prosperously and without fear one second, and you may be sacrificed the next.

Researchers said, Black chicken has full of antioxidant which helps to keep your health, prevent sickness and common colds. The antioxidant that is found in black chicken is called Carnosine. Besides, it also offer higher levels of irons, minerals and vitamins and nutrients usually present in regular chicken.

The chicken flesh itself is a dark bluish-gray or even black, and the bones are black as well. But the meat really doesn’t taste different by nature; it’s just chicken. In fact, if you’re looking for free-range and well-raised birds, choosing a black chicken is a good way to go.

Olive Egger chickens (half Marans chickens and half Ameraucana chickens) lay olive green eggs, while a new breed developed by My Pet Chicken, the Favaucana (half Faverolle and half Ameraucana), lays a pale sage green egg. Isbars also lay a range of greenish-colored eggs from mossy to mint green.

There are several breeds of chicken that lay blue eggs. The best-known of these breeds are the Cream Legbars, Ameraucanas, and the Araucanas. Mixed-breeds descended from any of these can also lay blue eggs.

And not necessarily harmful; blue eggs are widely eaten and the Araucana, in particular, is a very popular exotic chicken breed.

No, there is no difference in terms of edibility, health, or nutrition in different-colored egg shells. That said, the colorful eggs from your backyard hens WILL have much more nutrition, because eggs produced by hens raised on pasture are much healthier, indeed (and they taste much better, too).

The only pet that can be hatched from the Blue Egg is the Blue Dog. No other pets can be hatched from the Blue Egg.

1 Answer. With boiled eggs, the yolk can get a blue/green tint, particularly when over-cooked or cooked at too high a temp a reaction most of us have seen. It is a reaction between sulfur and iron. The same can occur with scrambled eggs.