ASSESSEMENT OF STALLION SEMEN CRYOPRESERVATION EXTENDERS

The researches were carried out during the breedi ng season of the year 2008, using three stallions o f different ages and breeds. In total, there were col lected 6 semen samples, 2 for each stallion, which were analyzed and preserved by freezing. We concluded that the semen extender used influenced the quality o f cryopreserved semen. The asessed motility and viabi lity depending on the cryoprotectant, stallion and sample, mainly showed a higher efficiency of one particular cryopreservation extender.