Need Help Identifying Fertile Eggs

[OneCrazyCowgirl]

We have 1 roo and about 14 hens. The roo was by accident but we kept him anyways. We eat the eggs even if he is there but I was thinking about hatching some of the eggs. I have seen diagrams of fertile eggs over time but I want to know if you can tell the difference between and fertile and nonfertile egg the day you take them out of the coop. Anyone help? Thanks!

 

[hokankai]

Not without cracking them open. When you crack them open you'll see a white bullseye shape about O <--that big sitting on the yolk. Infertile eggs will have a white dot on the yolk instead

 

[Dasp]

Yup only method is opening the egg, Unless you have an amazing candler bright enough to see the yolk with the white dot.

Best of luck

 

[kizanne]

You can always incubate them. After 7-10 days it is obvious who was fertile and who wasn't. Those with veins and an air sac were fertile those without either weren't.