If it is to keep her from shedding virus, I'ld probably cull her. I took an hour off of work this morning to be able to find the danged hen that keeps roosting in pines when I am not there at dusk, and so was able to watch her. She is definitely losing weight, and I thought was pretty disinterested in food. She picked at it, but I think wasn't really eating. When I held her, she was uninterested in feed from my hand, but I didn't have treats. I might try buttermilk (the real stuff) and egg tonight if I decide to try to keep her going.
I could separate her and see if I could encourage her to eat, but she would be away from the flock. I would definitely do that if I thought it would make it possible for her to survive, but not if it means she will just live a little longer while in my house....
She is a ba and has a sister, and the contrast between the two of them is heartbreaking. The nonsymptomatic ba is glossy, fully feathered, bright red comb....and this eye color changing hen is still molting, pale comb, much smaller, slower moving... and talking a lot. was trying to decide if she was in pain or not....
She is not showing any respiratory problems. just the eye, and losing weight, and general failure to thrive at this point.
Mareks is already there, so does it matter if there is more virus shed?