Oh, I see what you're saying now.
If you do end up with more with symptoms and won't be around to treat with the Tylan50, then yes, it would be a good idea to have the Tylosin powder for the drinking water.
If you do end up with more with symptoms and won't be around to treat with the Tylan50, then yes, it would be a good idea to have the Tylosin powder for the drinking water.