I think I found a new way to check for fertile eggs?
I checked our news chickens eggs for fertility along with one of ours to compare (we have no Roo).
So I left the intact yolks in fridge for the chickens the next day. When I got the eggs, the fertile one still had a white spot, but my chickens egg where it had the infertile white spot, there was a sunken in spot where it used to be.
Accidental experiment lol.
I checked our news chickens eggs for fertility along with one of ours to compare (we have no Roo).
So I left the intact yolks in fridge for the chickens the next day. When I got the eggs, the fertile one still had a white spot, but my chickens egg where it had the infertile white spot, there was a sunken in spot where it used to be.
Accidental experiment lol.