they can get bullied to that point, not a lot you can do, try putting a capfull of apple cider vinigar in their water, helps prevent infection. also chances are the bullies are roosters.
HI, this could be a respiratory problem. i've had this before, i treated this with penicillen but i forgot the dosage, also be sure to monitor fluids, and give probiotics. also call your vet and ask what you can do.
just want you to know, it's very unlikely that this was your fault. it happens all the time, chances are that it took too long to get out ( it was not strong enough) in time and shrink wrapped,( they will all shrink wrap if they take too long) and for future hatches, you can leave all of the...
some chicks never make it out, they just aren't strong enough. but you can try putting a warm damp paper towel around it, that can help soften the egg and ease pipping.