Supplementation of two sources of selenium at different levels in diet of boars and this effect on the seminal quality
DOI:
https://doi.org/10.1590/1809-6891v22e-71372EAbstract
The spermatic membrane is rich in polyunsaturated fatty acids, which makes it sensitive to the action of reative species of oxygen, which can damage the seminal quality of the scraps. The purpose of this study was to evaluate the effect of the supplementation of two selenium sources at different doses. Third five scraps were allocated in four groups: (INOR30) 0.30 ppm sodium selenite; (COMP30) 0.30 ppm selenium metal-amino acid; (MIXED15+15) 0.15 ppm sodium selenite + 0.15 ppm selenium metal-amino acid and (COMP15) 0.15 ppm selenium metal-amino acid. The ejaculates of the scraps were evaluated over 22 weeks, resulting in 210 samples evaluated for volume, motility, pH, presence of agglutination and morphological changes, and 140 samples for spermatic concentration. The data was analyzed with repeated measures in time in a mixed model with type of selenium supplementation, periods of evaluation (one period of two weeks + five periods of four weeks) and their interactions as fixed effects, and animal and the worker that collected the ejaculates as random effects. Results showed no difference in selenium supplementation with the sources and doses used. In this way, it was possible to verify that the metal amino acid of selenium at the dose of 0.15 ppm promotes the same effect as the diets formulated with 0.30 ppm of sodium selenite.
Keywords: Antioxidant; Boar; Spermatozoid; Reproduction
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