Young hen can't stand up.

[jeepone]

I had a pullet (4 months old) that started staying in the coop and wouldn't come out. I brought her out and noticed she seemed a bit unsteady on her legs. I decided to separate her and the next morning found her laying on her side in the cage. Her legs were strong and she would kick violently when picked up. Her wings worked well too and if you didn't grab them when you picked her up she would flap to get away. While I researched what it could be online, I made her a sling so she could be upright. She seemed to enjoy it especially when I took her outside.
I fed her scrambled eggs and rooster booster in her water. She ate, but seemed like she had trouble pecking in the right place to get the food. After a couple days she was losing a lot of weight and we couldn't determine the cause so put her down. However I would really like to know what happened to her.
I first thought of Maricks. But her legs weren't paralyzed nor was her poo green as I read in several articles. She did have some diarrhea, but normal in color.
She passed one worm that I saw. Reading online I see that worms can cause some neurological problems, but not sure if she fit the picture. (We are now treating the whole flock for worms.)
I've included three pix of Dottie. The first was the day I noticed her staying in the coop and leg weakness. The second was how I found her the next morning. And finally the sling seat I made for her, before I added feed and water right in front of her that she could reach.
Thoughts?

 

[LaFleche]

Well, in my opinion the second picture says Mareks for two reasons:
Her eye shows the typical changes of Ocular Marek's and she suffers from leg weakness/not able to coordinate her legs.

Have you recently added new birds to your flock or did you visit a country fair/poultry show?

I advise to keep a closed flock, which means to not give birds nor eggs away to prevent spreading the deadly virus.

If you decide to cull her or she dies, send her in to your state vet lab for necropsy.

@Eggcessive @azygous @Wyorp Rock

 

[jeepone]

Well, in my opinion the second picture says Mareks for two reasons:
Her eye shows the typical changes of Ocular Marek's and she suffers from leg weakness/not able to coordinate her legs.

Have you recently added new birds to your flock or did you visit a country fair/poultry show?

I advise to keep a closed flock, which means to not give birds nor eggs away to prevent spreading the deadly virus.

If you decide to cull her or she dies, send her in to your state vet lab for necropsy.

@Eggcessive @azygous @Wyorp Rock

We have not added birds nor have we been anywhere around other poultry. This pullet was one of four I hatched in May. No other birds show any signs of disease.

 

[Eggcessive]

Sorry for your loss. Do you still have her body? Most state vets can do a necropsy, and you can also ask for testing in case of Mareks. I hope it wasn’t Mareks, but the picture of the left eye looks a little suspect. If you lose another bird in the future, it would be good to get a necropsy. Here is a list of state vet labs to contact:
https://www.metzerfarms.com/poultry-labs.html