This happened when I got some salmon faverolle chicks in the mail from hoovers. Almost all of them died
. They thought they were chilled in transit, but some of these issues fall under the category of "failure to thrive".
I tucked my last living one in a incubator since everyone was running over her in the brooder, but she didn't make it either.
You can carefully feed her electrolytes with a dropper a 3-4 times a day, just basically wet her beak with it and she should take it in. You could try to gently put some of the egg yolk inside her mouth if you want to try. You just want to be careful you don't make her choke.
https://www.communitychickens.com/homemade-electrolytes-for-chickens/
If she doesn't make it, just trust in knowing it was probably for the best. I had a chick I had to nurse back to health, and though it worked, she has had a host of issues since then. Sometimes when they aren't strong enough to survive the transit or chick phase they aren't strong enough to lead a happy life either.

I tucked my last living one in a incubator since everyone was running over her in the brooder, but she didn't make it either.
You can carefully feed her electrolytes with a dropper a 3-4 times a day, just basically wet her beak with it and she should take it in. You could try to gently put some of the egg yolk inside her mouth if you want to try. You just want to be careful you don't make her choke.
https://www.communitychickens.com/homemade-electrolytes-for-chickens/
If she doesn't make it, just trust in knowing it was probably for the best. I had a chick I had to nurse back to health, and though it worked, she has had a host of issues since then. Sometimes when they aren't strong enough to survive the transit or chick phase they aren't strong enough to lead a happy life either.