Wednesday, 7 May 2008

More Egg Candling

Here's another photo of a candled egg, taken last night.

Where the last photo showed a system of veins, with the heart showing as a dark spot, here the whole top end of the egg is dark, where it is occupied by the now nearly fully developed chick.

Over the next few days, it will continue to develop, and as it does, there will be a gradual build up of CO2 inside the egg.

When this reaches a certain level, it will cause an involuntary jerk from the chick's head, which in turn will cause the beak to make a small hole in the shell, starting the hatching process.