How many days was this embryo?

[Rachysbirds]

Hi! We are incubating eggs and I candled them for the last time on the evening of day 16. This particular one was sloshing back and forth when I gently moved the egg and the egg was only about halfway filled (so when I turned it, the whole of it would float up), so I thought that it was no longer viable. However, when we cracked it open, this is what we found.
I feel so sad that maybe it was just growing slower and that I killed it when I cracked it open.? I don't know how to tell how far along this baby was?

 

[Yardmom]

If it was sloshing, it likely would not have made it to the end. I know there is a embryo development chart that I have seen posted before.
If I can see into an egg I go by veining to tell if there is life. Sometimes looking for movement ect. Can be hit or miss.

 

[Susan Skylark]

Not a chicken expert (quail!) but looks like it died late in the first half of incubation, say day 9-11. You didn’t kill it, if it is sloshy it has been dead a couple days and even if it was just slow to develop it would have died in shell anyway, eggs don’t contain enough resources to nourish a chick an extra five days past normal hatch. I had one in my first ever hatch (shipped eggs) that water candle alive day 19 (quail usually hatch day 17 but a cold incubator made it day 19) when everyone else was hatched, left it in incubator another day and finally died, thing was full size but developmentally a day 12, super weird but part of the process.

 

[Rachysbirds]

Not a chicken expert (quail!) but looks like it died late in the first half of incubation, say day 9-11. You didn’t kill it, if it is sloshy it has been dead a couple days and even if it was just slow to develop it would have died in shell anyway, eggs don’t contain enough resources to nourish a chick an extra five days past normal hatch. I had one in my first ever hatch (shipped eggs) that water candle alive day 19 (quail usually hatch day 17 but a cold incubator made it day 19) when everyone else was hatched, left it in incubator another day and finally died, thing was full size but developmentally a day 12, super weird but part of the process.

That makes me feel some better, thank you for the reply! Today was day 27 and all my other chicks hatched on day 22. There was one egg that never hatched so today at day 27 I listened and heard nothing. Saw no movement. So I gently opened it and there was still no movement. The chick seemed "feathered" and the right size but the yolk sac was not absorbed whatsoever and there was quite a bit of blood. I am so confused. Should I have left it for another few days or did it pass for some reason while the others hatched? It never pipped or anything but didn't smell bad...it seemed perfect. Just not alive. But both this egg and the one referenced above came from the same hen. Were these just super slow to develop or something was wrong with the hen to have 2 out of 2 die developing but not making it? So weird. And sad! She is our favorite and sweetest hen.