The aim of this study was to evaluate the preservation ability of five commercial boar semen extenders and compare CASA (Computer Assisted Sperm Analysis) method and classic subjective method of the sperm motility evaluation. The second objective of this study was to examine the boar seminal plasma selenium and zinc concentration and their relation to semen quality and quantity. The third objective of this study was to analyse the effect of twelve natural substances characterized by antibacterial activity on boar semen. Furthermore, the last objective of this study was to assess the effect of herbal extract supplement prepared from Eurycoma longifolia, Tribulus terrestris and Leuzea carthamoides on libido, semen quality and quantity in boars. The sperm progressive motility decreased among all tested extenders, depending on the storage time and increasing dilution ratio. The highest sperm progressive motility was achieved in Androhep Plus extender, followed by extenders VIP 5 and VIP 3. The lowest progressive sperm motility was typical for both BTS type extenders. The sperm progressive motility was influenced by the method and by the method and interactions with a variety of other factors including dilution ratio, sample storage time and sperm movement quality. There was no significant relation between the boar seminal plasma zinc concentration and sperm quality or quantity parameters. The boar seminal plasma selenium concentration positively correlated with sperm progressive motility, sperm concentration, total number of spermatozoa per ejaculate and negatively with distal protoplasmic droplet occurrence. Natural substances characterized by antibacterial activity had a significant negative effect on the sperm progressive motility. The positive effect of the herbal extract supplement containing natural stimulants on the libido of boars has been demonstrated in this study. The quality or quantity of boar sperm was not highly affected by this herbal extract supplement.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:425301 |
| Date | January 2018 |
| Creators | Lipenský, Jan |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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