I'm trying to find out how to cure a neighbors rooster that is limping and the leg it doesn't use is very skinny with hardly any muscle. i don't see any injury on the leg and it doesn't seem to be broken. its been like that for 2 weeks. and i believe that the rooster started to develop bumble foot the only leg it can use. any ideas how i can cure this rooster? could it be v12 deficiency?