Yes! Ivermectin.This study looks at ivermectin administered via feed. I did read the pour on label in the feed store yesterday and it says a 28 day withdrawl for meat animals... I would definitely try the ivermec for your birds! most of the breeders around me use it if their birds have a problem. ivermectin pour-on for the birds, and a spray called LD-44Z for a premises spray.
Do you know where I can find dosage amount for ivermectin. Someone told me 2 - 3 drops on the back of the the neck at the base for my rooster but they didn't ask if he was small or large. Just can't seem to find that information. I have a wide range of age and size birds.