time of collection. In other words, in the present study
supplementing Se to a basal diet provided no additional
benefit in semen production or sperm quality over the
non-supplemented control diet. In addition, there were no
benefits seen for dietary selenium supplementation on the
quality of stored semen over a 6 day storage period post
collection. Therefore, it appears that selenium, regardless
of its source, may be tightly regulated by the boar reproductive
tract, thereby standardizing the effects of selenium
on semen production and sperm quality.