I like Hunt & Behrens or Bar Ale, but you may not find those where you are. Just look for game bird layer or maintenance feed and check the nutrition label.
It sound like she's not getting a good diet. For starters, cut all of the treats (fruits, veggies, seeds) and give her a good game bird crumble. You're looking for something in the 20-24% protein range for an adult quail.
I have seen feed that says it's for quail that's is full of seeds that...