Chickscope Embryology:
Day 1: The Journey Begins
Before the Egg is Laid:
The egg is
fertilized.
The zygote
divides and begins to grow.
The cells
segregate into groups of specialized
function.
The embryo nearly
stops growing between laying and incubation.
During Incubation:
Major events:
18 hours:
The alimentary tract appears.
19 hours:
The brain crease begins to form.
20 hours:
Somites appear.
21 hours:
The brain and nervous system begin to form.
22 hours:
The head fold begins to form.
23 hours:
Blood islands appear.
24 hours:
The eyes begin to form.
What Do I Look Like Today?
Focus On: The Anatomy of an Egg
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