Cecisflock
The Backyard Brahmas
that looks like a BBW turkey anyway.There is no treatment for a leg bone deformity. Giving vitamins with minerals will not help, but make sure that she eats a balanced gamebird or all flock feed. They tend to get worse as the chicken or turkey grows. It may be hereditary, so I would not breed her. She may be able to get around well enough, but some birds may eventually become disabled, needing to be culled. Sorry.