I am raising my 4 runner ducklings on unmedicated chick starter currently - they are only a few days old. I have bought some Brewer's Yeast but don't know how much to add. For now, I have added half a teaspoonful into their bowl of food, but it is difficult to know how much  food to give them as they are eating more every day, also a lot of food gets spoiled and thrown away too.
Don't want to under or over dose them.
Any advice?
Thanks
	
		
			
		
		
	
				
			Don't want to under or over dose them.
Any advice?
Thanks
	