No you haven't. I'm beginning to think we're all being trolled by you. I have asked 5 times what kind of chicken feed she has been eating as have several others but you refuse to answer so I'm done trying to help you and Warf.
Canned cat food isn't a complete answer without specifying crude...
I'm sorry but in reading and rereading 3 pages of posts, I've yet to read a reference to anything edible besides apples, yogurt, grain and now eggs. Grain is not chicken food. It is woefully deficient in essential amino acids and many vitamins and minerals.
PLEASE help us help you by telling...
I figured it would be obvious when it was a link to the University of New Hampshire Veterinary Diagnostic Lab.
NHVDL
21 Botanical Lane
Durham, NH 03824
Phone: 603-862-2726
https://nhvdl.unh.edu/tests-fees-forms
Like some states they want the specimens submitted by a vet but if you call them...
What I'm gleaning from post #10 is that the bird had never been fed a complete chicken feed. If this is true, a possibility is any of a long list of nutritional deficiencies.
As was said, there are so many different things that could cause the symptoms you report.
A dog vet isn't your best...