Chickens are animals that lay their eggs on land, there are chicken embryo of restructuring for many reasons that are different from the embryo growing in water, such as with eggshell to prevent hazards and water-loss problem of the egg cell. In addition, the embryo with two layers of gloves bags wrapped in layers is the amnion contains fluid contained to act to prevent further and prevent embryo dry. Also called chorion layer bags near the eggshell acts to Exchange gas. Within the various organs of the growing embryo sacs are called embryo allantois insertion from the eggshell with capillary surrounding. This bag also serves to prevent gas exchange and baphai storage of waste acid type yurik have been collected until the embryo hatch. When the embryo grow integers, it will hatch out of the eggs.
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