Brazilian ranch manager Marcos Aurelio de Queiroz wants to triple the number of cattle his company, CSM Agropecuaria, sends to slaughter every year. The tricky part: Doing it without adding even a single bit of land.
For decades, ranchers in Brazil’s Para state have expanded their properties with fire and ax, clearing huge pieces of the Amazon jungle. It was a point of pride that their cows were fattened up naturally, while rivals in the U.S. and elsewhere increasingly used grain feedlots. Now, things are changing.




