Incorporation of reduced glutathione to the extender improves frozen-thawed sperm function and fertility potential in mandarin fish (Siniperca chuatsi)
Semen cryopreservation is a valuable tool for assisted reproduction in aquatic species. Despite the various advantages in hatchery practices, damage occurred during the process of freezing and thawing can result in compromised sperm quality. Supplementation of antioxidant in the freezing medium is s...
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| Language: | English |
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Elsevier
2025-03-01
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| Series: | Aquaculture Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352513424006781 |
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| author | Sen Yang Wenjie Xu Yanglin Hua Qingxin Ruan Zining Meng |
| author_facet | Sen Yang Wenjie Xu Yanglin Hua Qingxin Ruan Zining Meng |
| author_sort | Sen Yang |
| collection | DOAJ |
| description | Semen cryopreservation is a valuable tool for assisted reproduction in aquatic species. Despite the various advantages in hatchery practices, damage occurred during the process of freezing and thawing can result in compromised sperm quality. Supplementation of antioxidant in the freezing medium is suggested to be an effective strategy against cryodamage. Therefore, the objective of this study was to investigate the potential effects of reduced glutathione (GSH) on post-thaw sperm quality and fertility in mandarin fish (Siniperca chuatsi). Semen was diluted with freezing medium at a ratio of 1:6 (v/v), with GSH supplemented at different concentrations (0, 1, 2, 4, 8 mM) and then subjected to cryopreservation. Sperm motion parameters, viability, mitochondrial activity, lipid peroxidation, and apoptosis were assessed after thawing. The addition of GSH at 4 mM presented significantly higher (P < 0.05) post-thaw sperm total motility (%, 71.7 ± 7.2 vs. 64.6 ± 2.2), progressive motility (%, 14.9 ± 2.8 vs. 10.7 ± 0.4), curvilinear velocity (μm/s, 59.6 ± 4.5 vs. 51.2 ± 0.9), straight line velocity (μm/s, 25.3 ± 2.4 vs 22.1 ± 0.5), and average path velocity (μm/s, 37.3 ± 3.6 vs. 32.7 ± 0.6), compared to the control group. Viability was higher (P < 0.05) in sample supplemented with 2 mM GSH (82.0 ± 5.4 %) compared to other groups. In addition, GSH-supplemented samples showed significantly higher mitochondrial activity and a lower level of apoptosis (P < 0.05) compared to the control. Regarding lipid peroxidation, the rate was lower in treatments supplemented with GSH, although not significant (P > 0.05). After artificial insemination, a higher fertilization rate was recorded with GSH at concentrations of 2 and 4 mM (P < 0.05). Moreover, a significantly higher hatching rate (P < 0.05) was observed in the 2 mM GSH-treated group. In conclusion, the addition of GSH seems to provide a cryoprotective effect for mandarin fish sperm, resulting in improved post-thaw sperm quality and fertilizing capacity. |
| format | Article |
| id | doaj-art-48c96c76d139421c8bd7c55990c62b6c |
| institution | Kabale University |
| issn | 2352-5134 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Aquaculture Reports |
| spelling | doaj-art-48c96c76d139421c8bd7c55990c62b6c2025-02-06T05:12:14ZengElsevierAquaculture Reports2352-51342025-03-0140102590Incorporation of reduced glutathione to the extender improves frozen-thawed sperm function and fertility potential in mandarin fish (Siniperca chuatsi)Sen Yang0Wenjie Xu1Yanglin Hua2Qingxin Ruan3Zining Meng4College of Food Science and Technology, Guangdong Ocean University (Yangjiang Campus), Yangjiang 529500, ChinaCollege of Food Science and Technology, Guangdong Ocean University (Yangjiang Campus), Yangjiang 529500, ChinaCollege of Food Science and Technology, Guangdong Ocean University (Yangjiang Campus), Yangjiang 529500, ChinaState Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals, and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, ChinaState Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals, and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; Southern Laboratory of Ocean Science and Engineering, Zhuhai 519000, China; Corresponding author at: State Key Laboratory of Biocontrol, Institute of Aquatic Economic Animals, and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.Semen cryopreservation is a valuable tool for assisted reproduction in aquatic species. Despite the various advantages in hatchery practices, damage occurred during the process of freezing and thawing can result in compromised sperm quality. Supplementation of antioxidant in the freezing medium is suggested to be an effective strategy against cryodamage. Therefore, the objective of this study was to investigate the potential effects of reduced glutathione (GSH) on post-thaw sperm quality and fertility in mandarin fish (Siniperca chuatsi). Semen was diluted with freezing medium at a ratio of 1:6 (v/v), with GSH supplemented at different concentrations (0, 1, 2, 4, 8 mM) and then subjected to cryopreservation. Sperm motion parameters, viability, mitochondrial activity, lipid peroxidation, and apoptosis were assessed after thawing. The addition of GSH at 4 mM presented significantly higher (P < 0.05) post-thaw sperm total motility (%, 71.7 ± 7.2 vs. 64.6 ± 2.2), progressive motility (%, 14.9 ± 2.8 vs. 10.7 ± 0.4), curvilinear velocity (μm/s, 59.6 ± 4.5 vs. 51.2 ± 0.9), straight line velocity (μm/s, 25.3 ± 2.4 vs 22.1 ± 0.5), and average path velocity (μm/s, 37.3 ± 3.6 vs. 32.7 ± 0.6), compared to the control group. Viability was higher (P < 0.05) in sample supplemented with 2 mM GSH (82.0 ± 5.4 %) compared to other groups. In addition, GSH-supplemented samples showed significantly higher mitochondrial activity and a lower level of apoptosis (P < 0.05) compared to the control. Regarding lipid peroxidation, the rate was lower in treatments supplemented with GSH, although not significant (P > 0.05). After artificial insemination, a higher fertilization rate was recorded with GSH at concentrations of 2 and 4 mM (P < 0.05). Moreover, a significantly higher hatching rate (P < 0.05) was observed in the 2 mM GSH-treated group. In conclusion, the addition of GSH seems to provide a cryoprotective effect for mandarin fish sperm, resulting in improved post-thaw sperm quality and fertilizing capacity.http://www.sciencedirect.com/science/article/pii/S2352513424006781Semen cryopreservationMandarin fishReduced glutathioneSperm qualityFertility |
| spellingShingle | Sen Yang Wenjie Xu Yanglin Hua Qingxin Ruan Zining Meng Incorporation of reduced glutathione to the extender improves frozen-thawed sperm function and fertility potential in mandarin fish (Siniperca chuatsi) Aquaculture Reports Semen cryopreservation Mandarin fish Reduced glutathione Sperm quality Fertility |
| title | Incorporation of reduced glutathione to the extender improves frozen-thawed sperm function and fertility potential in mandarin fish (Siniperca chuatsi) |
| title_full | Incorporation of reduced glutathione to the extender improves frozen-thawed sperm function and fertility potential in mandarin fish (Siniperca chuatsi) |
| title_fullStr | Incorporation of reduced glutathione to the extender improves frozen-thawed sperm function and fertility potential in mandarin fish (Siniperca chuatsi) |
| title_full_unstemmed | Incorporation of reduced glutathione to the extender improves frozen-thawed sperm function and fertility potential in mandarin fish (Siniperca chuatsi) |
| title_short | Incorporation of reduced glutathione to the extender improves frozen-thawed sperm function and fertility potential in mandarin fish (Siniperca chuatsi) |
| title_sort | incorporation of reduced glutathione to the extender improves frozen thawed sperm function and fertility potential in mandarin fish siniperca chuatsi |
| topic | Semen cryopreservation Mandarin fish Reduced glutathione Sperm quality Fertility |
| url | http://www.sciencedirect.com/science/article/pii/S2352513424006781 |
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