I'm going to give it about an hour to see if someone will respond on how to save it but then I guess I'm going to have to... it's so sad I wonder what cause it to happen
Cause what to happen? The yolk sac being left or this specifically?
Sometimes they're just very determined to get up, and when they try they can rupture the yolk...Or even pull their intestines out. Its just awful, I've only seen a couple of threads about it, only one was successful. I can't recall what it was titled so I can't find it.
Ultimately the person would either have to wash their hands exceptionally well, or preferably wear sterilised medical gloves- then very carefully, very gently work the intestines back into the abdomen through the naval, where they came out.
Then you'd have to apply, probably triple antibiotic (without pain relief) thoroughly over the naval.
Some may use glue to close the hole but personally I wouldn't want to risk the glue entering into their system. I'd prefer to allow the opening to heal itself. Usually this only takes a day or so. The risk is that the intestines may somehow come back out, or infection could set in.
It's really an awful situation. It's entirely up to you, if you want to try to save the chick. I would do everything you can as soon as you can and hope for the best. But prepare yourself because the chances of survival are
extremely low. The chick could go very suddenly.
if it seems to be in pain, then euthanasia would be the kindest option, and there are more gentle methods. (I've never had to do this, so I know how scary and upsetting it would be to consider).
Keep us updated, if you get the intestines back inside, you will need triple antibiotic (without pain relief) to cover the area thoroughly.
I'm going to have another look for the thread that I'm thinking of.