Developing embryo question .. yolk placement....

[PeppermintHen]

One of the eggs developing in my incubator seems to have the yolk not busted but moving all over the place as if not held in place buy the "chalaza's" . My question is can the embryo still develop regardless if it's held in place by chalazas? I do realize the difficulty in hatching an egg as such such as pipping and zipping but I'm just curious.
Thanks in Advance -- Yvette

 

[Habibs Hens]

its possible your seeing is detached air cell

and yes possible to hatch but highly difficult and very low success rates

only the real experienced can hatch detached air cell eggs and even then they have low success rates