My chickens have a heavy worm burden, as confirmed by the lab that I use at work. ( I am a small animal vet tech and we have a lab that ran a fecal check for me. Unfortunatly, I don't really have a chicken vet. One of the vets that I work for is trying her very best to help, but she might be better to just stick to cats and dogs) She suggested that I look at using Verm-X. Has anyone used this with good success? Any other suggestions?