MadSci Network: Agricultural Sciences |
I really don't know the answer to this question, however, I would refer you to the American Egg Board. They are accessible via the Internet. Admin note: Birds' eggs are fertilized internally prior to being layed, and even prior to formation of the egg white and shell. Once layed, it's too late for fertilization.
Try the links in the MadSci Library for more information on Agricultural Sciences.