| dc.description.abstract | In this presentation, the influence of irradiation of boar semen by red light spectrum
immediately before insemination on the litter size in sows will be presented. LED lamps that
emit a red color spectrum with a wavelength of 620-630 nm built into the air conditioning box
were used. A mode of operation was: 10 minutes of light, 10 minutes of rest and 10 minutes of
additional irradiation.
Inseminations were carried out in the period from April to May 2021, on a farm of 1,200
breeding sows. Control group consisted of 174 sows with an average of 4.36 parities, and
experimental group of 64 sows, with a parity of 4.14. Gillts were excluded from the statistics.
In the experimental group, a higher number of live-born piglets was observed by 0.87
(14.05 vs. 13.17) but with no statistical significance, while in the same group, a significantly
lower number of avital and stillborn piglets was also observed (3.55 vs. 4.68; p <0.05 ). The
number of mummified piglets in the litters was identical (0.45 piglets) for both groups.
Semen irradiation with red light rays immediately before insemination had a positive
effect on the number of live-born piglets in the litter, but only in numerical value, while a clear
statistical difference was observed in terms of vitality of piglets in litters.
This trial is in progress and a significantly larger number of farrowings and a clearer
insight into the efficiency of such semen treatment on the fertility is expected. | en_US |
