Original: The incidence of twinning among cattle is about 1 - 4%, and research is under way to improve the odds of twinning, which can be more profitable for the breeder if complications can be sidestepped or managed.
Simplified: Twinning occurs in cattle about 1-4% of the time, and research is underway to improve the odds of twinning, which can be more profitable for the breeder if complications can be sidestepped or managed.