Gallic acid improves the viability and mitochondrial membrane potential of post-thawed goat buck semen

Inanç, Muhammed Enes and Güngör, Şükrü and Gul, Emir and Uslu, Baris Atalay and Ata, Ayhan (2021) Gallic acid improves the viability and mitochondrial membrane potential of post-thawed goat buck semen. ACTA VETERINARIA HUNGARICA, 69 (3). pp. 291-297. ISSN 0236-6290

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Abstract

The aim of this study was to determine the effects of gallic acid (GA) on frozen-thawed goat spermatozoa. Four Honamli goat bucks were used at their breeding season, and ejaculates were collected by an electroejaculator. Mixed semen was divided into the following four groups: control (0 mM), low (L; 1 mM), medium (M; 2 mM), and high (H; 4 mM) concentration of GA. All the groups were frozen and thawed in a water bath for spermatological evaluation. The lowest motility was observed in the control group (47.60 +/- 5.70%) (P < 0.05), while the highest viability (62.45 +/- 1.68%), plasma membrane and acrosome integrity (44.81 +/- 4.57%), and high mitochondrial membrane potential (35.96 +/- 2.50%) were observed in the low GA group (P < 0.05). Also, the lowest hypo-osmotic swelling test (HOS +) value was found in the high GA group (47.60 +/- 4.82%) (P < 0.05). In conclusion, supplementing a low concentration (1 mM) of GA to the Tris-based semen extender had a positive effect on spermatological parameters after freeze-thawing of Honamli goat semen. Further studies should be continued in other species with different doses and combinations using commercial and/or homemade semen extenders.

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