1. Department of Animal Reproduction, FMVZ-USP, Prof. Orlando Marques de Paiva, 87, 05508-270, Sao Paulo, SP, Brazil
2. RG Genetica Avancada, Agua Boa, Mato Grosso, Brazil
3. Agropecuaria Abe, Araguaina, Tocantins, Brazil
4. Firmasa, Tecnologia para pecuaria, Campo Grande, Mato Grosso do Sul, Brazil
5. Sexing Technologies Brazil, Rd. Carlos Tonanni, km 88, 14.174-000, Sertaozinho, Sao Paulo, Brazil