In Uganda they refer to the unique cattle with the longhorns as 'exotic cattle'; the other name is 'Ankole Longhorns'

it compares the indigenous longhorn cattle to the exotics that may produce more but don't do as well in that environment.

It looks like exotic cattle in Uganda are primarily Friesian (or Frisian) cattle that were originally imported into Uganda. The first two exotic cattle were imported to Uganda early in the 19th century but both of them died after getting bitten by tsetse flies. Attempts were finally successful in 1924. There are apparently other breeds as well that have been cross bred with local Uganda cattle (including longhorns). The most common exotic dairy breeds in the region are Friesian, Holstein, Ayrshire, Jersey, Guernsey and Sahiwal. However, the Friesian breed predominates. The common exotic beef breeds are Hereford, Brahman, Sussex, Charolais, South Devon, Africander and Simmental (dual purpose).