1. Department of Animal Science, Federal Rural University of the Semi-arid Region, Mossoró, Brazil
2. Federal University of the Rio Grande do Norte State, Natal, Brazil
3. Uninassau, Fortaleza, Brazil
4. State University of Valley Acaraú, Sobral, Brazil
5. Embrapa Goats and Sheep (Empresa Brasileira de Pesquisa Agropecuária), Sobral, Brazil