I have a lovely 2 1/2 year old chook Jenny. She recently (about 3 weeks ago) came down with sour crop. After visting the vets she had a course of antibiotics and the sour crop has gone however 4 days later she was back to moping around, not eating or drinking much and generally was very depressed. She has lost a huge amount of weight and now seems to be developing weakness in one of her legs. She has been back to the vets is on a course of anti biotics, and anti inflammorties as her leg keeps coming out of socket. Her vent is really dirty due to runny poop. I have given her an Epsom salt bath and she is also having cat food slurry (recommended by vet). Has anyone any ideas of what could be wrong or how I could help her. I only have two hens abd don't want to have put to sleep unless I have to.