I know people mention giving around 1/2-1cc of the injectable orally bird by bird, but is it possible to dose an entire flock with it by putting it in their water like you can with Baytril? Just something I'm curious about in case it ever comes up because I'd hate having to catch each individual bird to treat if the situation arose.
Tylan50 injectable isn't made to be put in the water. There is a Tylan powder that you may be able to find, which can be put in the water, though. One problem with water soluable medications is that the birds have to drink enough of it. Sick birds may not always drink enough. Though it may be time consuming, giving individual birds injections is usually the best idea.
I agree, direct dosing is really best it at all possible. If you ever do have to catch and treat them the easiest way is to just pick them off the roost at night