I guess my uncle is like the old time farmers.. But he isnt that old. He was taught by his mother to fix all the farm animals.. But not the chickens.. They just prossessed them and put them in the freezer or canned the meat.. But my uncle will fix any male animal that has 4 feet.. It takes just a few minutes.. Consists of two small (about a centimeter, depends on animal..) Pop out testies, cut them off.. Disinfect.. They stop bleeding in just minutes. And never acted like any thing happened.. I have seen this personally, but wont try it.
Please dont start a fight type war over this statement. It is just the way of old do it yourself farming.. People have done it for centuries.. You used to be your own vet. And there is still DIYers out there..