I have 19 chickens and am wanting to deworm them using Zimecterin Gold. I have no idea how much I can give them/mix in their water. The plunger/syringe of the wormer appears to be in increments of 50 with the plunger going up to 1250 lbs. Does anyone know how much (notches on the plunger/syringe) I can mix in their water and how many gallons of water? Thank you!