The in Vitro Effect of Taurine on Boar Spermatozoa Quality
2018
Dušan Paál | František Strejček | Eva Tvrdá | Grzegorz Formicki | Sabine Klein | Detlef Rath | Peter Massanyi
The aim of this in vitro study was to evaluate the effects of taurine (TAU) supplementation on boar spermatozoa motility, viability, acrosome integrity and morphology. Eighteen boar semen samples were diluted with the Androhep PlusTM extender containing no TAU (control) or supplemented with 1.5 mM, 7 mM, 12.5 mM TAU and cultured at 4 °C for 18 days. Sperm motility was evaluated using the computer-aided sperm analysis (CASA) system. Furthermore, the samples were fixed and assessed for the occurrence of morphological abnormalities using phase contrast microscopy. Fluorescent dyes SYBR – 14 and propidium iodide were used to determine the sperm viability. Acrosome integrity was examined using PNA – Alexa Fluor 647 and flow cytometry. A gradual decrease of the semen quality was detected in all experimental groups over the course of the study. CASA revealed no selective advantage of TAU supplementation on the spermatozoa motility (p > 0.05). TAU administration showed to be ineffective in preserving spermatozoa viability as well as acrosome integrity as measured by flow cytometry (p > 0.05). Under the conditions of this study, no significant positive effect of TAU was recorded following its administration to the Androhep PlusTM boar semen extender with respect to spermatozoa quality.
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