It's been one thing after another here! My new Silkie rooster has had upper respiratory symtpoms, so I started him and his lady on Denegard in the water with honey added. It's very cold here and he is getting worse. I use 1 1/2 teaspoons Denegard in one gallon water. I have Tylan 200 should I change to that? I can't inject so should I bring him in the house out of the cold and start the Tylan 50 or even the Oxytetracycline? I am at a loss!!