Brazil is primarily known in agricultural circles as a big producer of soft commodities, such as coffee, sugar, oranges and more recently grains.
But the majority of Brazil's rural backlands are still dominated by low-tech ranging.
That is starting to change, though, with ranchers under pressure to produce more efficiently because of the expansion of grain production.
"Just as in soybean production, ranching is starting not to tolerate inefficiency," said Mauricio Nogueira, meat specialist at Agroconsult, a local farm consultancy.
This drive for efficiency has led to a significant decline in the number of animals slaughtered after 40 months.