1. Department of Soil Sciences Federal Rural University of Rio de Janeiro, UFRRJ Seropédica Brazil
2. Department of Animal Sciences Federal University of Lavras, UFLA Lavras Brazil
3. Embrapa Agrobiologia Seropédica Brazil
4. Faculty of Veterinary Medicine National Autonomous University of Mexico Ciudad de México Mexico
5. CEPLAC/CEPEC Itabuna Brazil
6. Department of Agronomy State University of Santa Cruz, UESC Ilhéus Brazil
7. Animal Husbandry Experimental Station of the Extreme South of Bahia (CEPLAC/ESSUL) Itabela Brazil