Are these eggs fertile

[Lucas S]

Is this egg fertile it's about day 7 and I see that dark spot is that a Pitt
E duckie body

 

[HollyDuckFarmer]

What is "Pitt E"?

I think the spot you see is the yolk. By 7 day you should see veins in a fertilized egg, I believe.

 

[Lucas S]

Lol didn't mean to say pitte so you don't think that is a baby duck I have a drake in the pen and I've seen them mate I don't see why is wouldn't be fertile

 

[HollyDuckFarmer]

Did you see this thread? https://www.backyardchickens.com/t/834156/fertilized-eggs-how-can-u-tell#post_12232873

HTH