1. INIFAP, Instituto Nacional De Investigaciones Forestales, Agrícolas Y Pecuarias (Mexico), Ciudad de México, C.P., 04010, México
2. Animal Science, Cornell University, Ithaca, NY 14853, USA
3. Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY, 14853, USA
4. Embrapa-Acre, Caixa Postal 321, Rio Branco AC 69908-970, Brazil
5. Agriculture and Food Global Practice, The World Bank, Washington, D.C., 20433, USA