Lethargy, thin, wobbly, progressive

[bravecoconut]

I have not used Clavamox as that is obtainable only by vet. Enrofloxacin can be gotten from pigeon suppliers, the oral form. Injectable is vet only. I have used the oral form and the injectable of that. With the injectable there is issue of tissue necrosis at the injection site, so you have to move the spot around (on the breast). This is one link to the oral form:
https://jedds.com/products/enrofloxacin-10?variant=40215712661693
Doses I have used are:
10mg/kg of body weight, twice a day for 5 days
15 mg/kg once a day for 5 days
20 mg/kg once a day for 5 days
Depending on what I'm treating I will often start with the higher dose and adjust it down if I see droppings looking sick after giving it, until droppings become more normal. But for your young bird you may want to try the lower dose. It is harder on them than amoxicillin which is usually well tolerated.
If you can find Clavamox I'm sure someone here can help with dosing that. There are members here who do have the benefit of veterinary help.
Amoxicillin dose is 57 mg/pound of body weight twice a day for 5 days.

Everything I'm reading about the enroflixacin is saying that their eggs will never be safe for human consumption again. I guess I'm going with amoxicillin. Thank you for all your help. I really appreciate it!

 

[Wyorp Rock]

Everyone gets feather fixer 20% pellets free fed, henhouse reserve fermented in the morning with some nine grain scratch, flax seed, chia seed, hemp seed, and various herbs, vegetables, fruits, and kitchen scraps. They have free choice grit, oyster shell, and crushed egg shells.

Cream legbar hatch date May 20, 2025

So approx 22weeks old.

Do you have any other Crested Cream Legbars? Are they laying eggs?

How long have you been feeding Feather Fixer, Henhouse Reserve, etc.?
Feather Fixer is a layer feed, I believe Henhouse Reserve is too.

If she's not in lay, then I'd switch to her a chick starter or an all flock feed (that has minimal calcium). Start her on the vitamin therapy too, giving B-Complex and Vitamin E (400IU).

It's possible that she may be suffering from Marek's or some other disease/condition, it's hard to know. If you lose her, having a necropsy would hopefully give you detailed information.