So it is actually a breed of cow with biggest herd in Japan. And it is a very small herd that has been selected bred and thinned over the years. It is famous for the marbeling of the meat throughout. There are some very small herds in North America but Japan has a stranglehold on export.Cows get special diet and piped in music! I am sure there are some technical attributes as well but I am not a beef guy so don’t really know. We ain’t got em here in Arkansas I know that!