The Japanese Poll (aka Japanese Polled; Mukaku Washu in Japanese) began as a cross between Japanese Native cows and Aberdeen-Angus bulls.
The Japanese Poll was officially recognized as a breed in 1944.
You can also go to:
The Cow Wall® By Country - A Cow/Cattle Breed Picture Reference and see the other breeds of Japan.
My Daily Cow® Japan and read about other Japanese cattle breeds.
The My Daily Cow App gives you A Cow a Day
and a Reference Guide into the World of Cattle.
My Daily Cow® - Alphabetical Cow Reference Page
My Daily Cow® - Research References