I know this is a late response, but wanted to post in case others came across this thread.
I agree that the first bird pictured in this thread almost certainly has a disease called avian osteopetrosis (= thick leg disease), which is caused by avian leukosis virus. As avian osteopetrosis (AOP)...
I know this is a very late response, but wanted to post in case others came across this thread.
This bird almost certainly has a disease called avian osteopetrosis (= thick leg disease), which is caused by avian leukosis virus. As avian osteopetrosis (AOP) progresses, the bird's legs will...
If your Leghorn rooster has avian osteopetrosis (AOP), it is extremely important for you to separate him from the rest of the flock - AOP is virally induced and can spread easily. He is unlikely to recover (his legs will always be thick because he has made extra bone there, it isn't a fluid...