I too have some chickens with "colds". Exactly which disease, I do not know. I understand and I know from reading that I need to take a dead one to have a necropsy. At this time, for various reasons, I am unable to do this. However, I have the Tylan and also Denagard.
My question, I just read on BYC that I can inject the bird with up to 1 cc of Tylan if they are esp. large heavy birds, which some are.
Also, the suggestion was that Tylan only last approximately 8 hours in the birds system...therefore it would be wise to give them the injection twice a day. I have one bird that is so bad that I decided to do this. He was gasping for air and frankly, I did not think was going to survive the night. Surprisingly, he is still alive and was eating this morning. I was absolutely shocked.
So I am wondering if anyone else has heard of this injection of Tylan 50 twice a day.....or even 3 times a day if the bird is really bad off.
I am aware that many antibiotics require that they be taken twice a day or even up to 4 times a day.
Last week, I did give Tyan 50 injection once a day on a bird. It did not seem to make a difference.
However, since I bumped it up to 2X a day, I seem to see a positive response. It may just be a fluke, but at least this large rooster is still alive. I intend to give it to give for the next 5 days. I look forward to seeing what the success rate will be.