How is the golden pheasant embryo nourished?

The golden pheasant is a bird of the chickens family. Like all birds, pheasants reproduce with eggs. In the egg, the embryo is not only reliably protected by the shell from the penetration of bacteria and mechanical damage, but also has an aqueous medium in the form of protein; receives the oxygen necessary for breathing, which is in the air chamber formed by the shell membrane. And the nutrients necessary for growth and development enter the cells of the embryo from the yolk of the egg.