PLEASE HELP ANYONE with Diagnosis. My chickens/ roosters keep getting swollen hock joint on the leg usually only one is affected. Does anybody have any clues? I have them on layer pellets, different bottom cages-some hay, some wire, some ground, it doesnt seem to matter. I had a peachick come up with the same. It becomes swollen and turns green and they never regain use of it and then die. We have tried antibiotics, mineral supplements nothing works. [HELP!!!!