There's some good info on backyardchickens, there's also some idiots who think they're raising egg laying "dogs" and don't realize they're farm animals meant for food.I found this hysterical thread over on backyardchickens.com. https://www.backyardchickens.com/threads/caponization.42645/
I hope the same idiots don't ever find out how they castrate hogs or they'll get a case of the vapors. Making barrows in FFA was pretty brutal by comparison, but there just isn't a "nice" way to do it..
This chinaman has done one or two before, he's got the process down. Looks like someone else makes the incision and he just fishes out the beans. That's a pretty slick "operating table" he's got..