It's been 24 hrs plus since it hatched and one of my new little Dark Cornish chicks won't walk. Nothing seems broken, and while his legs are curled up I can't see any physical deformity. He struggles greatly to walk, but can't get to his feet. About all he can do is lay on his said, feet sticking out. Should I cull? I've already put the other chicks in the brooder, but have left this one in the incubator for fear of him getting crushed or pecked to death.