When you look at some of the photos people post or their description (like "leg turning inward") when their ducklings are going lame I wonder if bow legged doesn't fit to some degree - how bad does it have to be before we can wonder about niacin deficiency. 
I had never heard of perosis, or that a manganese or choline (which is a B vitamin - presumably also in brewers yeast) deficiency could also be causing lameness.
So I appreciate the info.
	
		
			
		
		
	
				
			I had never heard of perosis, or that a manganese or choline (which is a B vitamin - presumably also in brewers yeast) deficiency could also be causing lameness.
So I appreciate the info.
	
	
	