EFFECT OF RED LASER IRRADIATION ON PHYSICOCHEMICAL PARAMETERS OF SEMEN OF BOARS

Exposure of sexual gametes to low-intensity optical radiation is considered to be one of the biosafe methods of increasing the semen fertilizing capacity. We studied the effect of laser irradiation of the red spectrum region on physicochemical parameters (pH and osmosis) of breeding boars’ semen. The studies were conducted on four groups (control and three experimental groups) of animals of different breeds aged 18-24 months. It was found that when diluted semen of breeding boars was exposed to a semiconductor low-intensity red laser with a wavelength of 620-760 nm and a power density of 3 mW/cm2 for 10-30 minutes, the pH level ranged from 7.14 to 7.40 after three days of storage, which corresponded to the norm for the use of ejaculate in artificial insemination. Osmotic pressure increased with increasing storage time of diluted ejaculates and after 72 hours was within acceptable values ranging from 314.76 to 316.85 mOsm/L. 

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