The primary objective of this research was to evaluate the effect of long-term dietary selenium
supplementation of commercial swine diets on semen production and sperm quality.
The dietary treatments were a non-supplemented basal diet or the basal diet supplemented
with 0.3 ppm selenium in either an organic or inorganic form.
A secondary objective was
to determine if there were any beneficial effects of dietary selenium supplementation on
changes in sperm quality during storage of semen post collection.
Boars were fed dietary
treatments from weaning at 20.97 ± 0.18 d of age until the study was terminated when
they were 382.97 ± 0.18 d of age. Boars (n = 6 per treatment) were maintained on a 1 time
per week collection frequency for 5 months.
Immediately after this, boars were collected
six times over a 4 day period. Ejaculates were extended in a commercially available, 5-
day semen extender and evaluated on day 1 and 6 of storage post-collection. Boars fed
the organic selenium had higher (P < 0.01) plasma levels of selenium compared to control
boars and similar levels to those supplemented with the inorganic form (P = 0.18). Dietary
treatment did not affect (P > 0.2) volume, concentration, total sperm in the ejaculate, sperm
motility, progressive motility, morphology, lipid peroxidation, or glutathione peroxidase
activity.
These results indicate that supplementing a basal diet with organic or inorganic
selenium did not affect semen quantity or sperm quality in fresh ejaculates nor did it appear
to have any beneficial latent effects in extended semen stored post collection
The primary objective of this research was to evaluate the effect of long-term dietary seleniumsupplementation of commercial swine diets on semen production and sperm quality.The dietary treatments were a non-supplemented basal diet or the basal diet supplementedwith 0.3 ppm selenium in either an organic or inorganic form. A secondary objective wasto determine if there were any beneficial effects of dietary selenium supplementation onchanges in sperm quality during storage of semen post collection. Boars were fed dietarytreatments from weaning at 20.97 ± 0.18 d of age until the study was terminated whenthey were 382.97 ± 0.18 d of age. Boars (n = 6 per treatment) were maintained on a 1 timeper week collection frequency for 5 months. Immediately after this, boars were collectedsix times over a 4 day period. Ejaculates were extended in a commercially available, 5-day semen extender and evaluated on day 1 and 6 of storage post-collection. Boars fedthe organic selenium had higher (P < 0.01) plasma levels of selenium compared to controlboars and similar levels to those supplemented with the inorganic form (P = 0.18). Dietarytreatment did not affect (P > 0.2) volume, concentration, total sperm in the ejaculate, spermmotility, progressive motility, morphology, lipid peroxidation, or glutathione peroxidaseactivity. These results indicate that supplementing a basal diet with organic or inorganicselenium did not affect semen quantity or sperm quality in fresh ejaculates nor did it appearto have any beneficial latent effects in extended semen stored post collection
การแปล กรุณารอสักครู่..
