this is the link to the video of the duck
when they were very young we fed them the same brand Dumor but it was the chick feed grower not the adult finisher idk if that helps also she has and angel wing we didn't know what it was at first because we had never had a duck with that and we were too late to wrap it down to correct it and when she was young we would find small amounts of blood on her wing and on the other ducks and after observation we saw that the other ducks were picking at her angel wing and either broke or pulled a blood feather we put alcohol on the wound along with some neosporin but I wonder if that wound caused an infection? If it did what is suggested? Also if it is fungal what is the best way to treat it besides switching food?
There seems to be so much going on with this duck that I am going to agree with Amiga and her recommendation that you seek the advice of a vet. If there is no avian vet in your area any vet should be able to make a general recommendation and/or consult with either an avian vet or their vet school.
@duckydoos , I agree that a vet would be best, but I'd still like to see what the poop looks like.
When you gave the shots, did you give them in the breast or the leg? I ask because some people have reported lameness in ducks after giving injections in the leg.
@duckydoos , I just looked up anatipestifer and I think penicillin is only effective when given with another antibiotic.