ANATOMY

Detailed explanation-1: -Some eggs are never fertilized. These eggs are called “yolkers.” Some fertilized eggs stop developing during incubation; these are called “quitters.” The fertilized, properly developing eggs are called “winners.” When you know you have a yolker or a quitter it is important to remove them from the incubator.

Detailed explanation-2: -Quitters-When embryos stop growing, we call them “quitters.” You will see a thin, blood ring around the yolk. Quitters are removed from the incubator and thrown away. If you want to view the embryo, have your parent or teacher help you open the egg.

Detailed explanation-3: -Candling is the process of holding a strong light above or below the egg to observe the embryo. A candling lamp consists of a strong electric bulb covered by a plastic or aluminium container that has a handle and an aperture. The egg is placed against this aperture and illuminated by the light.

Detailed explanation-4: -Chicks will typically hatch at day 21. If the fertilized eggs were cooled prior to incubation, the process might take a little longer. If you are at day 21 with no hatch, give the eggs a few more days. When the big day comes, let the chick hatch on its own.