I have five hens and three have come down with nimble foot. I'm treating the worst one individually but I would like to put the whole flock on antibiotics. But they aren't drinking the medicated water and it has been raining so much that I can't limit them to it. Can I place some in a treat I know they like such as yogurt with meal worms or some watermelon instead of mixing it with water first? I want to make sure they are getting the full dose every day. If so how much tetracycline should I put in say a pint of yogurt for five hens?