Hoping someone may be able to give the name of a good general antibiotic that I could start my hens on. I have had a group pass away over the last few months but I have not seen anything that would tell me why. They have been all eating, drinking, interactive, etc. A few of them became very quiet like a day or two before they passed, but that was about it. No wheezing, discharge, nothing. I am really at a loss but want to get them on something before I have more die. I did have a rooster who got what appeared to be a respiratory issue in November but I quarantined him and he got better. He still seems rather tired but eating and drinking as normal. He is a bit older too. I will take any advise I can get - I just had another die tonight. It was been extremely and I mean extremely cold here. But they are in an insulated house with two brooder lamps. HELP!