I thought Baluts were supposed to be duck eggs.It may be gross to some to read this, but I need them to be fertile so I could make balut from them. If you don't know what balut is, it's partially incubated eggs - considered a delicacy in some culture. My mom wants to try adding balut as a protein source to her diet.
Typically the age of the egg before it is cooked varies between cultures. In the Philippines, the perfect Balut egg is normally 17 days old, the point where the chick does not have beak, bones or feathers. In Vietnam however, they prefer their Balut eggs to be 19-21 days old, the point at which the bones of the chick will be firm, but they soften considerably when cooked.
At any rate you will have to incubate those eggs till they are about a week away from being hatched.
deb