1. Center of Agrarian and Biological Sciences, State University of Acaraú Valley, Sobral, Ceará, Brazil
2. Department of Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
3. School of Agriculture Sciences, São Paulo State University (Unesp), Botucatu, São Paulo, Brazil
4. Center of Agrarian Sciences, Federal University of Piauí, Teresina, Piauí, Brazil
5. Embrapa Goats and Sheep, Brazilian Agricultural Research Corporation, Sobral, Ceará, Brazil
6. Embrapa Mid-North, Brazilian Agricultural Research Corporation, Teresina, Piauí, Brazil