Thanks for looking into this; I looked for a long while myself and couldn't find any sites that shed any light on the subject. Your thoughts about potential harm from a high accumulation of toxins in aquatic plants in general has made me reconsider feeding this to my chickens for now. I also...
I've got a pond overflowing with what I'm pretty sure is American waterweed (Elodea canadensis). Anyone feed this to their poultry? I hate to experiment with it, but there's so much available I really want to see if my chickens and turkeys will eat it and if it will benefit them.