Good Evening, I have a rooster who has a cough. He's had it for some time now. At first, I started giving him Tylan, 5CC 2x a day for about 4 days. Unfortunately it was expired - yes, I forgot to check the date. So, I went and bought a new batch. I gave him the new one for 5 days. He seemed to be getting better. After about a week off the Tylan, he is back to his coughing. He seems to "gasp" to breathe. It's not as bad now as it was, but still not better. I have started the Tylan rounds again. I have been adding apple cider vinegar to their water as well. No one else has this cough. He walks around fine, eats, drinks and even "services" his girls. Other than the bit of difficulty breathing, he is healthy and fat. What else can I do for him? He's a sweet boy and I do not want to have to put him down, but I do not want him to suffer either.