None of my eggs are developing in the incubator. fertile?

[Hennypen]

All of my birds are under a year old and all of the hens are laying. I've tried two batches of eggs with several breeds and none of the eggs are developing in the incubator.

When I break some open some have the bullseye on the yolk. This does mean the eggs are fertile correct?


If they're not fertile, what would cause that? How old does a rooster need to be before he's fertile?

 

[mrslb333]

Yes if they have the bullseye they should be fertile. Not sure why they wouldn't develop though

 

[Freckle Face Farm]

hope this helps https://www.backyardchickens.com/forum/viewtopic.php?id=16008