Day 7 - Candling the chicken eggs

This video shows how to candle a chicken egg. Candling is like shining a flashlight into your mouth - you get to see what is inside. Candling is the same, but you are looking inside of an egg. It is used to test whether an egg is fertilized or not. It is also to see whether the embryo is developing as it should.



At day 7 one should be able to see a black dot with blood vessels. There should also be a small air sac at the big end of the egg.