Hi. I am brand new to BackYard Chickens but am just wondering if anyone has had any issues feeding their ducks organic feed? We recently lost a duck due to an enlarged heart. The vet mentioned it could be genetic but then went into a long spiel about how ducks raised on organic feed frequently have heart issues. I have four other ducks (three Welsh Harlequins and one Rouen- all female) and am concerned about what I am feeding the rest. We give them Dumour organic layer pellets but also add other grains (mainly oatmeal), nutritional yeast, mealworms, sunflower seeds, and from time to time kelp meal. They also get veggies everyday and free range most of the day in the summer. I honestly felt like he doesn't see a lot of ducks as patients, and he couldn't give me a recommendation as to what I SHOULD be feeding them. But he was the only vet that could see her same day. I am heartbroken and don't want this to happen to any of my other birds.