I have a Dorkings roo just over a year old. He is kept with pine shavings, eats fermented feed and the layers mash. About a three weeks ago he developed a swollen toe about half way up the toe. His tail also looked like it has been shorn off. I didn't find any evidence of a predator and figured he must have tangled with the male guinea. I kept checking his foot to be sure it wasn't infected like bumble foot. He has been hanging out with the youngsters and roosting in an easy to get to spot. This week his other foot appeared swollen. I checked it over and there is no sign of an external injury. Last night I found him piled in a corner and brought him inside to a cage. His toe in his left foot is swollen and his back fifth toe looks discolored and withered almost like frost bite but it hasn't been cold enough lately. His right foot is swollen and the skin between his toes is red and split looking. He is now having trouble standing and when he sits down his feet curl. I have not given him any med since I didn't know what I was treating. Any ideas or suggestions would be great. I'm worried there is no fix and he will have to be out down.