That is taking a bull and removing certain parts to change it to a "steer". The steer can thence no longer reproduce, and is also a lot less aggressive.
Well, yes and no. Yes because the bulls used in Spanish bull fighting have been bred to fight to the death. No because these bulls, just like all other "normal" bulls on a farm or ranch, are used to...
This all depends on the producer. Some like to castrate a bull calf when they're barely a few days old because this immediately inhibits the bull calf's testosterone production, and also prevents any...