Not found much; on dried buttermilk cultured seems to not matter by weight of dog:
1/4 tsp twice a day, takes a few weeks to see results, Takes a few weeks to see results whatever you use.
Tylan powder; well I know in Angels Eyes for 12 pounds up 1 tsp. daily but so much of that is beef liver flavoring..
I'd say like a vet told me on straight Tylan powder you could knock less then 1/18th of a tsp off the tip of your finger and it could be precious plenty. The Angels Eyes is so much dried beef flavoring and so little tylosin or tylan; gonna be difficult to measure. I do know why we have to pay so much extra for a little dried beef flavoring.
Tried the Tums; does not work for my fawn French Bulldog & seen one brindle with tear stains & that looks WORSE then a fawn with tear stains........that was just plain SAD.
www.bhejei.com/tearsta.htm