How old is Scarlet? She is really gasping in the video. Is she overweight that you know of? Is her lower belly swollen or tight? Have you seen any other chickens or other birds sick with a respiratory infection? Tylan 50 injectable is a good antibiotic to use for bacterial or mycoplasma infections. There are also viruses that cause infections, and those won't respond to the AB's. Dosage of the Tylan 50 is 1 ml for a 5 pound hen given orally or by injection, twice a day for 3-5 days. If she is closer to 7-8 pounds, I would give her 1.4-1.5 ml. Oxytetracycline or Tylan powder can be used in the water instead.
