When do you "call" coturnix eggs duds?

[Shugercube]

So, I did a bit of an experiment. (Eggsperiment? )

Got 2 dozen corturnix eggs that had been refrigerated. Initially was going to eat them all, but randomly I decided to set half and see what happened, unsure if they'd been cold too long or not.

Well. One had a crack that I had missed upon initial inspection, so I tossed that one.

I couldn't resist candling, and by day 3 (well really, 2.5 lol) 4 already had veining, one of which I could even see the teeny tiny fluttering of what I assume was a heart beating (video linked below if anyone's interested ). I was already pleasantly surprised with that, but then 2 days later I had 9 obviously viable eggs!

It's now day 8, and ten have clear veining and movement. The 11th one looks... empty? I can see the yolk, but there's no veining and no darker spots. Is it too soon to call it and toss it? Should I give it more time? I don't want an incubator eggsplosion, but also don't want to toss a potentially viable egg.

Coturnix egg candling day 3

Pic of earliest veining at 3 days:

Editing to add a pic of the egg in question, compared to an obviously developing one.

Definite good egg:

Dud??? (Pretty sure lol)

 

[Kiki]

I've set and hatched refrigerated eggs before. Good luck!

 

[Kiki]

By day 11 you should be able to tell without a doubt if the egg is developing or not. I'd pull it.

 

[Shugercube]

I've set and hatched refrigerated eggs before. Good luck!

Did it seem to affect the male:female ratio at all? I know temp doesn't "make" them one or the other. But have "heard" often that the male embryos don't survive in cold temps as well as the females. I am not trying to sway anything, but just curious if it will make much difference in the gender ratio at all

 

[Nabiki]

That last one is a dud. Toss it.