Abstract
Brazil has a considerable and growing agricultural area, reaching 71 million hectares in 2016, with a projection of expansion to 75 million in 2017 (IBGE, 2016), with a comparative advantage in soil, water and climate. Still, livestock farming accounted for 29 million cattle slaughtered in 2016 (IBGE, 2016). These figures help to understand the reason why 23% of the national GDP is the re…