**Author details**

Leticia Zoccolaro Oliveira1 , Fabio Morato Monteiro2 , Rubens Paes de Arruda3 and Eneiva Carla Carvalho Celeghini4

1 Department of Animal Reproduction, FCAV, Univ Estadual Paulista, UNESP Jaboticabal, Jaboticabal, SP, Brazil

2 Animal Science Institute, IZ-APTA, Sertãozinho, SP, Brazil

3 Laboratory of Semen Biotechnology and Andrology, Department of Animal Reproduction, University of São Paulo, USP, Pirassununga, SP, Brazil

4 Department of Animal Reproduction, University of São Paulo, USP, São Paulo, SP, Brazil
