1 University of Trás-os-Montes e Alto Douro, Vila Real, Portugal.
2 Genetic Department, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal.
3 Centro de Ciência Animal e Veterinária, Department of Veterinary Sciences, University of University of Trás-os-Montes e Alto Douro, Vila Real, Portugal.