It's good to do some research to figure out dosing.I’ll research some more on dosing by weight, good old Google just said a pea sized amount. Thanks for the Baytril info. Since she isn’t laying anyhow, I don’t know that we will have much of a withdrawal period, but who knows. I’m just hoping to treat her instead of the whole flock.
Medicines are dosed by weight. I'll give you the dosing info below.
Check your pullet over for lice/mites too and check to make sure her crop is emptying overnight as well. If you can get photos of her droppings that would be good.
To treat most worms that poultry can have except for Tapeworm you can use Safeguard (Fenbendazole) or Valbazen (Albendazole). Both are given orally by weight; they do not mix well with water.
Safeguard dose is 0.23ml per pound of weight given orally once a day for 5 days in a row.
---OR---
Valbazen dose is 0.08ml per pound of weight given orally once, then repeated in 10 days
Here's how to give oral medications:
https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/