The objective of this study was to examine semen quality parameters for the Přeštice black-pied breed over a test period of 8 y while considering the potential effects of collection month and boar age. Sperm motility, sperm concentration, percentage of morphologically abnormal spermatozoa (MAS), and sperm motility after 24 h of storage in Androhep extender were assessed. Significant differences were found in sperm concentration and MAS rate in relation to collection months and boar age in the monitored years. A tendency for MAS to increase with monitored years was observed. Significant differences in sperm motility and motility after 24 h of storage were only observed in relation to collection months. Results of this study detected effects due to collection month and boar age on boar semen quality during the monitored years.