Furthermore, the results show that freezability of Caspian
horse semen can be affected by EY concentration and type
(centrifuged versus whole). Finally, the present results
suggest that the use of a low concentration of CEY (2%) and
soybean lecithin in combination significantly improved
reproductive traits of Caspian horse semen, indicating its
beneficial effect during the freeze-thaw process. Nevertheless,
further studies should be carried out in order to
confirm with AI trials of this presented results.