Today was the 15th day of the chick hatch. We candled again today. 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.
Lat week the embryo was a small dot -- about the size of a pea. Today you will notice in the video, the chick has grown quit significantly. You should be able to see movement of the chick, more blood vessels, and the air sac should be larger than last week.
The chick's skull, beak, claws and scales on the legs all begin to become much firmer and the 'egg tooth', which will be used to break out of the shell, hardens. The 'egg tooth' will drop off the chick after it hatches.
We started with 12 eggs and noticed last week, one of them was not fertilized. This week we noticed that all the eggs were healthy and we might get better than a 70% success rate.
The following are the 11 eggs that were fertilized. Which one do you think will hatch first?
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