When Vimal Selvaraj's uncle first imported Holstein semen to start his dairy farm in India in the early 1990s, he was hailed as a revolutionary on the cutting edge of agriculture. His first generation of cattle crosses between Holsteins and Sahiwals, a native Indian breed, seemed to carry the best traits of both: the Holsteins' high milk production, and the Sahiwals' disease resistance and extreme weather tolerance.