If it survives, I don't recommend keeping it for breeding. I had heard not to break chicks out of the egg because they would be unthrifty and end up dying anyway, but that was not my experience. I broke quite a few chicks out early on and they grew up to be big, beautiful healthy hens, who laid big, beautiful eggs. I was feeling quite proud of myself until I tried to hatch those beautiful eggs. You guessed it - the chicks could not get out of them. I'd put a lot of time & feed into them and it hurt to cull them at that point, but rather than perform c-sections on every hatch they went down the road as layers.