When I was in high school and college, some dairies were using what I thought were Brahma bulls . I learned just last week, that they were probably Gyr (or Gir) . I was reading the inside of a Brangus production sale catalog,, and this particular farm that their Grandaddy started, was involved in raising Gyr-Holsteins, as part of some kind of program, back then. Seems like Gyr/Gir are a Zebu breed of dairy cows, used a lot in not only India, but a lot of African and South American countries. This program was part of a project by some college or maybe even USDA or some kind of government program,. to help improve the dairy herds in Africa and South America. Dunno if they got some kind of subsidy or guaranteed price for them or what.... the catalog just said that about 45 years ago, they started raising registered Angus. But, it got my curiosity up, and I got it on my "to do list", to research this in my spare time.