Personally, I would not use tadpoles as food. Simply because the frog and toad populations are suffering a world wide decline. I raise as many as possible in my pond and aquarium for release to the wilds of the backyard. If some adult frogs or toads get into the chicken run and get eaten, then there is nothing I can do about that. I just will not raise them as a direct food source for the chickens.Has anyone thought about raising tadpoles for the chickens? The kiddie pool that was just sitting out full of filthy water is full of them, should make decent chicken food? I haven't put serious thought into it, but might work.