When our hen had mareks (or that's what we think she had) she was the only one in the flock who had it. she started out with a slight limp, it got worse over a week or so and she ended up not being able to walk at all, and was flopping onto her back.She was not eating well, and had a little loose droppings. We put her in a rabbit cage, and started her on the Hypericum ( SJW.) She showed slight improvement within a few days, then there was none for a few days, then a huge improvement, and she continued to steadily improve. That was last summer. She's still with us, and she's acting normal. Hopefully my talking about it won't jinx anything.It helps with many neuro issues, but you do have to make sure that it is a neuro issue, because it can backfire on you if it isn't. If you are pretty sure it's marek's you can try it and see. The thing with Hypericum is, that when they start showing signiificant improvement, you have to stop with the Hypericum, or it can go the other way. But lots of people have used it with great results.![]()
So yeah, just keep an eye on the others. I'd keep your hen to herself, in a pen, but just near to the others. I wouldn't necessarily let her mingle with them until she is well again.
Alternatively, if one is dealing with solely neurological Marek's, Vitamin B supplementation is proven to help aid in nerve repair, albeit slowly, and has none of the negative problems that Hypericum can have.
Of course, if a bird is dying from Marek's, it does not hurt to try, but if one is NOT sure what is ailing the bird, it's better not to experiment too much with things that can 'backfire'...