I'm sorry about your hen. If you can't get her to eat, she will likely pass. If I were you, I would start tube feeding. You can tube the medications/oil along with feed, and that will hopefully help her recover. @casportpony has experience with tube feeding, she may be able to help. She also has articles written about it which I will link below.She has been fighting the respiratory issue for about a week and a half. The issue is that her appetite seems decreased. She usually runs up to me everytime I go outside hoping for treats but now I have to go right up to her and even then, she will get close to it, maybe take a couple little nibbles, but seems generally uninterested. I’m not sure how to get her any medication when she won’t even eat much.
Thread 'Step-by-Step Tube Feeding Guide - Pictures - Under construction'