Not sure if that can be given together or not. FWIW, if I were going to use Tylan 50 I would give it orally at 0.05ml per pound twice a day. If that didn't work, then I'd probably use Baytril, but it's banned for use in poultry, so that's something to think about.
I can not sell their eggs for eating, so I'm not super worried about that. I want to hatch their babies though...... So you recommend not doing the injections? I'm worried about getting it in their lungs.....the boy was hard enough to get the penicillin tablets in his mouth.