This is my first posting but I have been reading this forum for months. I had noticed a few of our laying hens "coughing" and read alot of posts about oxine. It just came in the mail today so I sprayed it in their coop and on the birds themselves. I haven't noticed any symptoms except the "coughing". I did seperate one hen because she seemed worse, her eyes were closed and she just stood there. I have a pen next to the layers that has over 40 9 week old cornish cross. Does anyone know if there would be any harm in spraying them as well, just in case? We are going to try to butcher them in the next few days, weather permitting. I just wanted to make sure since we were so close to butchering them. Thank you!