Wikipedia
Hybridmaster
The Hybridmaster is a new breed of cattle. The genetic makeup of Hybridmaster cattle is approximately 50% Angus, 25% Brown Swiss, 6.25% Brahman, 6.25% Simmental, 6.25% Gaur, and 6.25% Bison.
Developed by Joe Grose in Oklahoma, Hybridmasters have been selected for 35 years on four traits - milk, fertility, longevity and growth. This breed was designed to produce large amounts of beef, as well as milk.