EN
The morphological picture of spermatozoon from Black-White bulls housed in different environmental conditions was investigated. Obtained results indicate, that the industrial pollutions could have an impact on the significant elevation of spermatozoon, in which the primary and secondary defects were found. Another factor influencing the proportion of pathological forms of spermatozoa was the season of year ; the highest mean percentage of anomaly forms ocurred in semen was examined during the winter time. Not significant differences was revealed for morphological picture of semen obtained from 24 and 3-months old bulls.