Worming chickens with Wazine-17?

[DominaPullorum]

Hello everyone!
I bought a pint of Wazine-17 to worm my chickens before the local fair happens. I was reading the directions, and it says to mix 2 ounces per 2 gallons of water, per 100 birds. Does anyone know how much to give a flock of about 20?

 

[cluckychick]

The object is to give them only what they'll drink in a day. I put 1 oz to 1 gallon, take water out the night before so their good and thirsty the next morning. You could also do .5 oz to 1/2 gallon.