ANATOMY

Detailed explanation-1: -The embryo feeds on the yolk of the egg. The yolk of the egg provides plenty of nutrition to the developing chick. The yolk will fully sustain the chick until he is ready to hatch.

Detailed explanation-2: -The yolk has a small white spot on it called the egg cell or germinal disc. This is the part of the egg from which the baby chick develops. The yolk provides food for the baby chick while it is growing in the shell. The albumen is the thick clear substance surrounding the yolk.

Detailed explanation-3: -The chick embryo derives all its nutrient requirements during incubation from the albumen and yolk. The albumen represents approximately 65 to 75% of the total content of the egg and consists of approximately 88% water and 12% protein, which are totally consumed by the embryo during incubation [1, 2].

Detailed explanation-4: -On the 18th and 19th day, the chick positions itself with its head back and its beak toward the air sac. It absorbs the rest of the yolk into its body for use as food after hatching.

Detailed explanation-5: -That orange stuff is called a yolk. It’s a great source of vitamins, minerals, fats and proteins packaged up by the female animal for an embryo (the developing cells that turn into a baby).