Is her crop emptying overnight or not? Check the crop first thing in the morning before she's had anything to eat/drink. If it's not empty, then address that Symptom.
https://www.backyardchickens.com/ar...w-to-know-which-one-youre-dealing-with.73607/
I may have missed it, when was her last egg?
You sure that's the
Correct amount of Safeguard Pellets to give?
The pellets are hard to dose to be honest. I would go get a bottle of Safeguard Liquid Goat dewormer at TSC and dose each bird individually by weight, this will ensure each bird is getting the correct amount of dewormer.
To treat Roundworms Only - Safeguard Liquid Goat dewormer dose is 0.23ml per pound of weight given orally once, then repeated in 10 days.
To treat most worms that poultry can have except for Tapeworm - Safeguard Liquid Goat dewormer dose is 0.23ml per pound of weight given orally once a day for 5 days in a row.