My name is Adam in need of some help. I have four,4 week old pekin ducks which 3 of 4 started to develop leg issues about 2 weeks ago. I started supplementing their Niacin (B3) levels in their water and in food. Nothing seems to be improving. After many calls and research I ended up just going to a vet that would see them--even our local farm vet doesn't have the experience with pekins. In addition to the B3 supplements ive been giving, which is in a constant offered supply, the vet I saw administered a vitamin B complex injection to each and suggested I supplement their D3 levels. She also suggested a feed with a higher crude protein level. I was giving them feed at 20% but am now giving the full 22%. I am at least 500 dollars in so far and I am reaching out to anyone that may help as I know my window to reverse this is limited. Please, if anyone has suggestions or info, id greatly appreciate it. You can contact me here, or at firstname.lastname@example.org, or 609-602-6194. Thanks!