I am so sorry but I believe it was Marecks but to be certain send it off for a necropsy as I can only tell you my opinion. With Marecks disease there is no medicine, only vaccinations which are difficult to find as doses only come in per 100 birds and are expensive. Marecks disease causes the...
Other diseases I have found include Infectious Laryngotracheitis, Mycoplasma and Infectious coryza. I have a fantastic Magazine which has everything to know about how to care for chickens and that is where I found these possibilities. Guessing that it has spread, I would be looking at the...
Oh dear. I know I am not a Vet but this sounds bad.
Any Chicken that is not drinking or eating is in a bad position. I would check for more symptoms. Is the keel (breastbone) sharp suggesting that it is underweight. Check the crop for liquidy substances or irregularities. Is she wormed and if...
Eggs without shells often means disease. It could just be egg eaters. But no shells, hmmm. As you supply grit and yoghurt, I doubt it would be calcium deficiency. Diseases can include egg drop syndrome and Infectious Bronchitis. I would research about that. Check the poo, that is the most...
If it is an occasional sneeze, I wouldn't worry about it. Any other symptoms? Check poo, sleepiness, is it laying? When was it last wormed as it may be Gape worm but it is very unlikely. Especially check the poo. Irregularity is often the first common symptom. This is just to check if your chook...