I wrote about Carbon's problem in some detail with pictures so readers might refer to these posts in the event they encounter a similar problem.
I have never given a chicken antibiotics for an undiagnosed problem before.
I have never given a chicken antibiotics for anything other than external injuries that have either become infected or, on the advice of a vet, stood an unacceptable risk of infection.
My experience of giving chickens antibiotics on the three occasions I have done so have been mostly disastrous and have led to extended suportive care, eating problems, crop disorders that took weeks to sort out, further weight loss and reintegration problems when they have had to be isolated while wounds have healed.
On the other hand I've dealt with some very unpleasant wounds with carefull cleaning and an application of Stokholm Hoof Tar.
https://www.backyardchickens.com/ar...s-and-injuries-with-stockholm-hoof-tar.74400/
None of the birds treated as above spent more than a day away from their tribe and non of them died from their injuries and all continued to eat well and compared to those given antibiotics, recovered very quickly.
I'm not on the same page, or even reading the same book as BDutch regarding natural health products, whatever they are, and I don't really care about the effects of the overuse of antibiotics with my own species.
I do care about chickens though.
The last three occasions I've been prescribed antibiotics I didn't take them, they make me feel truly awful, and lived to write this.
I have amoxicillin on hand to give a medium dose of 125mg per day for seven days.
Whatever has caused Carbon's problem, stress, moulting, reduced immune system response, old age, it's a digestive tract problem she's dealing with leading to crop problems. These are the areas in my very limited experience that suffer badly when the chickens is given antibiotics. The last thing I want is to exacerbate the existing problems by giving antibiotics.
Getting her crop moving more freely has given positive results; still runny droppings but a much higher solid content.
I'm not in a position to give constant supportive care, or keep Carbon somewhere I can keep an eye on her adequately.
If she dies, she will have had a long life compared to the Ex Battery hens and some of the other rescues that have ended up at the allotments. Currently, as can be seen from my posts, she's eating, drinking and out foraging with the rest of her family. Should this stop, then I will reassess.
I'm going to try
@L-plate chicken mum suggestion first and cross my fingers.