THE INFLUENCE OF AGE ON THE PARAMETERS OF EJACULATE IN BOARS

Abstract

The age of boars significantly influences the values of ejaculate parameters. The aim of this research was to determine the quality of boar ejaculates categorized by age groups: Group 1, up to 1 year, Group 2, up to 2 years, Group 3, up to 3 years, Group 4, 4 years and older. A total of 50 ejaculates from 50 boars from nine farms were examined, analysing the impact of boar age on ejaculate parameters (ejaculate volume (ml), progressive motility (%), sperm concentration (x10⁶), total sperm count (x10⁹), and percentage of total proteins). Analysis of ejaculate parameters in boars of different ages indicates that the most significant changes occur in sperm concentration and total sperm count, where significant differences were observed. These results suggest that age influences spermatogenesis, and with the aging of boars, there is a decrease in the intensity of spermatogenesis.