Evaluation of males spermiogram in domestic pigs

A microscopic assessment was used to estimate sperm morphological structure in 405 ejaculates from 70 boars according to Blom classification. The classification of spermiogram quality according to a new 6-degree scale was also established. We found, that male spermiograms in domestic pigs were characterized by a large variability both between and within breeds. The estimation of semen quality, only with regard to the mean frequency of occurrence of particular morphological forms of spermatozoa, was not effective for evaluation of individual boar or group of boars. However, the method was effective to evaluate individual ejaculates. The quality classification of the spermiogram enabled to evaluate usefulness of ejaculates graded as good and average for insemination.