That's a tough one. Is he getting along with the other roosters and hens?
If you isolate him, then you may have trouble re-integrating him back with the others.
But, if he's weak, not eating and not feeling very well, then isolating him will give him a break so he can rest, you can treat him and make sure he's eating/drinking.
If you isolate him, then you may have trouble re-integrating him back with the others.
But, if he's weak, not eating and not feeling very well, then isolating him will give him a break so he can rest, you can treat him and make sure he's eating/drinking.