She has this on both feet. Limping really badly on one side when she has to move but mostly is laying still for the past day. I didn't notice any issues 2 days ago, seems to have come on quickly. She is free range and no hard surfaces.
I don't see any foreign objects that would be causing...
We have 3 ducks, almost 4 weeks old. Two of them are doing great. One is showing signs of what we assume to be niacin deficiency. About a week ago she started to be hesitant to move around like the other two. As if it hurts to walk. We feed Purina Premium Poultry Feed Flock Raiser Crumbles since...