Does this egg look fertile? Pic

[ghiigh33]

I have this egg at 4 weeks at 85/86 and i cant tel what the heck is going on... there is a big single red streak that curves around it but i see no veins or dark spots its just all yellow and this single red thing...can anyone clarify please? Oh and i am using albeys method which involves air exchange once weekly, is it bad if i open it up once every few days instead of daily to add eggs?

 

[wildaboutleopardgeckos]

The egg looks fertile to me

 

[Just leo`s]

can you see what look like a bulls eye in the egg if you can then yes its fertile


Paul

 

[RubberDuckey273]

looks like a nice, healthy, fertile egg