Lost a pullet the other day and had a necropsy done. This wasn't the cause of death, but I was told she had a good deal of tapeworms. Now I am scrambling to learn about how to deworm chickens of tapeworms. Does this mean I need to treat the whole flock? I would imagine so. Also, I read that Zimecterin Gold horse dewormer may be the best product for getting rid of tapeworms? Is there a specific formula/variation of this product I should or shouldn't use? I noticed there were a couple different versions. What is the dosage of this product for chickens? Will it be the same for all my chickens and larger roosters? Thanks!