improved the cooling ability and fertility of donkey semen in horse mares, and centrifugation positively affected donkey semen extended in SKM.
Acknowledgments
Funding Sources The Authors would like to thank FAPESP (Fundação de Apoio a Pesquisa no Estado de São Paulo) and CAPES (Coordination for the Improvement of Higher Education Personnel) for supporting the study.
Declaration of Ethics
The Authors have adhered to the Principles of Veteri- naryMedical Ethics of theAVMA.
Conflict of Interest The Authors have no conflicts of interest.