So, I know this is a bit of a strange question, but I figured I would ask anyway. I just took my boat out of the water, and the bottom is crusted with fresh, small zebra mussells. Their shells are still thin and easily break. I'm thinking they might be an good source of calcium and protein for my chickens and pekin ducks, as well as offering them a little variety in their diet. Any opinions on if this is a good idea?