We also lost this little chick early this morning. We had separated it from the others and shortly after it's intestines also started coming out. So, I also culled it.I had 1 from my last hatch come out that way. The hernia got a lot bigger and was leaking yolk out and bleeding. It was awful. I was told to contact Sally Sunshine and this is the advice she gave me. By the time I figured it all out, its intestines had also fallen out, so I had to cull. But urs may not get so bad. Just incase....
Her advice...
Take dental floss dip in iodine and tie it to the top of that mess.next to the chick and then cut it off and iodine the entire area when she is free of the mess...
its the yolk that came back out. This chick will need alot of care this week, it wont have those vits from the yolk,.
feed it scrambled yolk and plenty of electrolytes and such
see this paste from hatching 101