Uticaj zračenja semena nerastova crvenim delom svetlosnog spektra na veličinu legla krmača

Abstract

U ovom izlaganju će biti prikazan uticaj zračenja semena nerastova crvenim delom svetlosnog spektra neposredno pre osemenjavanja na veličinu legla krmača. Korišćene su LED lampe ugrađene u klima boks koje emituju spektar crvene boje, talasne dužine od 620 do 630 nm, sa režimom rada od 10 minuta svetlosti, 10 minuta odmora i 10 minuta dodatnog zračenja. Osemenjavanja su sprovedena u periodu od aprila do maja 2021. godine, na farmi od 1 200 priplodnih krmača. U kontrolnoj grupi su bile 174 krmače, sa prosečnih 4,36 prašenja, a u oglednoj 64, sa paritetom od 4,14. Nazimice nisu bile uključene u statističku obradu. U oglednoj grupi je registrovan veći broj živorođene prasadi za 0,87 (14,05 prema 13,17), ali bez statističke značajnosti, dok je u istoj grupi, zabeležen znatno manji broj avitalne i mrtvorođene prasadi (3,55 prema 4,68; p<0,05). Broj mumificirane prasadi u leglima je bio identičan (0,45). Zračenje semena crvenim svetlosnim zracima, neposredno pre osemenjavanja imalo je pozitivan efekat na broj živorođene prasadi u leglu, ali samo u numeričkoj vrednosti, dok je jasna statistička razlika uočena u pogledu njihove vitalnosti. Ovaj ogled je u toku i očekuje se analiza znatno većeg broja prašenja, a time i jasniji uvid u efekte ovakvog tretmana semena na oprasivost.

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.