I have been spinning in circles for a few days now trying to figure out the dosages for this stuff! I just purchased a bottle to use a a preventative for my flock seeing as they free range and are exposed to wild birds in the yard I thought this might be a good idea. The dosages on the bottle are for pigs not poultry. Some website tell you the dosages for poultry but going by each individual weight is NOT gonna work for me. I have 45 birds (all banties) but vary in sizes. Is there a simple way to dose them in a gallon size waterer? Like 1 tsp per gallon? I guess I am a bit mathematically challenged.