Description given on Youtube:
Breeds known as dual-purpose breeds are also used for beef production. These breeds have been selected for two purposes at once, such as for both beef and dairy production, or both beef and draught. Dual-purpose breeds include the Brown Swiss and many of the Zebu breeds of India such as Tharparkar and Ongole Cattle. The original Shorthorn was also a dual-purpose breed, but it diverged into two groups through selective breeding.