I have a rooster of unknown variety a week ago I posted and was told it sounded like gapeworm. Did the worm treatment but still he is very raspy when he crows. I read on another one site to put cider vinegar in the water, to clean any possible mucus in his throat; he is very shy when I come around. So I have not been able to check his throat. Anyway before I try the cider I wanted to know if anyone else has heard of this treatment? Also will the cider vinegar harm my hens?