I'm having a problem with my young Muscovy ducks. Out of 11, that are around 10 weeks old, I have 3 or 4 showing signs of Angel Wing. I feed cracked corn (the 5 grain type) and Layena. 2/3 cracked corn to 1/3 Layena. Is Layena my problem? I also have chickens and Runner ducks... and feed the same to all of them. I just posted on the "Geese" forum, then realized I posted in the wrong place. Sorry for the duplicate post. They all free range on an acre. Should I stop the Layena?