bullseye/fertile egg question?

[thorton]

Is it possible to already have a fertile egg with only one day with rooster. I saw him holding her down, but not sure if he actually did his job.

I understand a fertile egg will have a bullseye. I have a egg with a white center, then a shade of lighter white surrounding the center. Is this fertile ? Or should there be a ring around this?
To me it looks like a bullseye, and it hard for me to believe it's fertilize with only day together?!

Just a post note, this is also a larger egg than she usually lays.

 

[Yorkshire Coop]

I think it's a little soon yet for fertile eggs. Your egg seems to be infertile as its not the donut i see on your pics. Here is a pic of fertile eggs

 

[farnorth]

Usually takes at least 3 days after first mating to get fertile eggs.

 

[thorton]

Okay thank you! I thought it was to soon also. I can clearly see the difference in the two pictures. I will use this to compare later eggs.