Excellent tropical beef characteristics developed through long-term genetic selection under good management conditions of commercial ranches.
Maintained in commercial ranches in the semi-arid uplands of rift valley and eastern province of Kenya.
Originally descended from the first introduction of zebu into Africa from West Asia. The breed evolved from populations of Ethiopian Boran cattle that migrated or traded into northern Kenya and taken up in the 1920s by British settlers in Kenya and undergone genetic improvement for beef (thus the synonym Improved Boran). Now it is recognized as an excellent tropical beef breed, with finished weights as high as 850 kg. The breeders' society in Kenya was established in 1951. The breed has since been exported to Tanzania, Zambia, Uganda and Zaire, and more recently to Brazil, Mexico and Australia.