Thanks for re-posting the photos. It's a big help.
I can't say it's Marek's as I've only seen photos of the feather follicle involvement with the disease. The follicles look rounded and swollen, like a bad case of goose bumps. Your hen's skin looks more wrinkled like a brain. Her eye looks normal, also. In Marek's the eye can appear bluish and the pupil will be smaller, looking more like a human eye.
So, no, there is no reason to think she has Marek's unless she has leg problems. Her skin is a definite concern, though. It's as if she's lost a lot of weight and her skin is folding back on itself. I can't say I've seen anything like it. For the dryness, I would use coconut oil on the exposed skin. Or maybe open a vitamin E capsule and rub that into the wrinkle skin.
I can't say it's Marek's as I've only seen photos of the feather follicle involvement with the disease. The follicles look rounded and swollen, like a bad case of goose bumps. Your hen's skin looks more wrinkled like a brain. Her eye looks normal, also. In Marek's the eye can appear bluish and the pupil will be smaller, looking more like a human eye.
So, no, there is no reason to think she has Marek's unless she has leg problems. Her skin is a definite concern, though. It's as if she's lost a lot of weight and her skin is folding back on itself. I can't say I've seen anything like it. For the dryness, I would use coconut oil on the exposed skin. Or maybe open a vitamin E capsule and rub that into the wrinkle skin.