Just a small drop per chicken.Get a dropper (like the poly-vysol ones) and put the drop I put it in their head almost close to the neck where they can not get to, make sure it goes in the skin and not in the feather because the feather will soak it up.
I buy the big packet and put everyone in the empty poly-vysol bottle, keep it in dark or will change colour I don't know that will mater but just in case.
I buy the big packet and put everyone in the empty poly-vysol bottle, keep it in dark or will change colour I don't know that will mater but just in case.