PLEASE HELP OUR CHICKEN. URGENT!!! Skinny and can't walk properly

[Soot the silkie]

It is riboflavin deficiency, Most likely. My chicken has the same problem, and she seems to be slowly getting better on vitamin B.

 

[Soot the silkie]

It is riboflavin deficiency, Most likely. My chicken has the same problem, and she seems to be slowly getting better on vitamin B.

I am wrong, my chicken died of Marek's.