I've given her an all over check (trying not to stress her out too much). Her vent is clean, I can't make out any stuck eggs (I'm very inexperienced, this is my first time looking after chickens full time), she has little yellow/orange lice but it's not an infestation and I have a lice spray that works well. But when I set her down to check her, her wings splay open and she rolls onto one side. She hasn't made any noises.
The full story is; we got them as a family from the next town over. There's a white silkie bantam, and a black frizzled bantam, then my mother bought a brown pullet (I think) the same day. The brown hen was dropping yellow/orange stool, very runny, with worms in it, so I used the wormer their previous owners had for them. As far as I know, it isn't out of date, and has been used before successfully. The grey frizzled bantam (I've named her Annabelle) was going to roost earlier than the others for a couple days before becoming extremely lethargic during the day. Until yesterday, she had been eating well, and drinking lots of water. I live in Australia, so we've had some pretty high temperatures, but they are in quite a shady, cool area. I put Avi-Lyte, an electrolyte, in their water. The rest are healthy (seeming so) with bright wattles and healthy appetites. The worms and runny stool has stopped, and they have regular routines. That's all I know. We've only had them for a couple weeks, and the previous owners never elaborated or told us of problems in the birds. I just want to know if I can save Annabelle. She's been living with her friends for a year and I'm worried that if she goes, the rest of them will deteriorate. I bought them to help with my depression, and provide a little bug control for my veggie gardens, and I'm not sure if I'll cope if Annabelle passes. Okay, my sweet Annabelle isn't alright, and the worst part is that I don't know what's wrong with her! I've checked her vent, it doesn't seem to be clogged, but she hasn't pooped yet. Her
feet react slowly when I put my finger under them to get her to grip like she would on her roost. I've been feeding her softened, mushy pellets, with egg yolk, and sugar water with an electrolyte hourly.
Every so often, she spazzes; flailing her wings, throwing her head back, kicking her legs, and often falls on her side but doesn't get up again. She's doing it now, and
tipping her head back slowly, shaking, and making gaspy, breathy noises. No clucking, no squawking.
Her pupils react to light, but just a little bit, slowly shrinking. I don't want her to die, but I don't know what's wrong with her. She's been lethargic the past couple of days, starting about a week after we bought her from a couple who were selling her and her friends, another frizzled bantam, and a white silkie. The others are fine, scratching and eating, and aren't displaying the same signs of distress.
Help!
Please help me! I've just been informed by my step-father that if she isn't better by the weekend, he's going to "put her down"! If she passes, she passes, but if I can fix it, I will! I need to know if she'll pull through, or how to get her better again! Please please please help me!
I'm sorry you are having trouble.
Are you able to have the vet see her again?
How old is she?
Do you know if she was vaccinated for Marek's?
Any way you can post a video or some photos of her?
The spasms, tipping back the head, etc.,
could be an indication of something like wry neck or crookneck. Neurological conditions can be caused by several things, such as Vitamin E and Selenium deficiency, certain diseases like Marek's, Avian Lymphoid Leukosis or Newcastles or from a head injury. You can try giving her extra vitamins in her water making sure you have Vitamin E and Selenium - also look for one that has Vitamin B2 (riboflavin) as well. See if she will eat some egg or tuna in addition to her normal feed.
While a vitamin deficiency could be the cause, your mentioning that her eyes don't react to light well is concerning. Marek's can present with symptoms that you are seeing. They only treatment would be giving supportive care, but a lot of times this is unsuccessful.
I understand this is distressing, but just know that you are doing the best that you can in helping her.
Keep us posted.
Here's some info on Marek's:
https://www.backyardchickens.com/a/the-great-big-giant-mareks-disease-faq