egg question

[EggyChicken]

One of mine has just layed a double yoker, what causes this?

 

[Farmer Kitty]

She ovulated twice and that's how you get double yolkers. Young birds tend to do this more than older birds. Nothing is wrong with her.

 

[EggyChicken]

i thought she was fine, in theory if the egg was fertileised could she have twins?

 

[BettyR]

Quote:
I've often wondered the same thing, but since an eggshell can’t expand like the skin of a mammal to accommodate the extra bulk of two offspring I would think that if there were twins they would never survive….not enough room to develop.

 

[EggyChicken]

would one be ther stronger embyro? would it survive maybe?