Resources and production
Temperate breeds perform well in tropical highlands situations, except at very high altitudes, only encountered in the Andes of South America. Local breeds play an important role where subsistence objectives are still important, cash income is limited and few purchased inputs are used. At the other end of the intensity scale, New Zealand systems use highly selected animals, artificial insemination (AI) with fresh semen, and a range of advanced technologies to maximize animal output from the pasture produced.