1. School of Veterinary Medicine; São Paulo State University (UNESP); Araçatuba São Paulo Brazil
2. University of West Paulista (UNOESTE); Presidente Prudente São Paulo Brazil
3. Department of Animal Reproduction; University of São Paulo; Pirassununga São Paulo Brazil
4. College of Agricultural and Technological Sciences; São Paulo State University (UNESP); Dracena São Paulo Brazil
5. Quali's in vitro laboratory; São Paulo Brazil