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Idris N, Abduh MY, Noordin NM, Abol-Munafi AB, Koh ICC. Development of sperm cryopreservation protocol for patin buah, Pangasius nasutus. Cryobiology 2024; 115:104878. [PMID: 38431183 DOI: 10.1016/j.cryobiol.2024.104878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/14/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
The development of sperm cryopreservation for Pangasius nasutus is necessary in order to serve the growing demand of this species through artificial fertilization and the preservation of valuable strains of male broodstocks. In the present study, the basic protocol of sperm cryopreservation for P. nasutus was established by identifying the optimal conditions for optimum cryoprotectant, toxicity of cryoprotectants, extenders, freezing condition and dilution ratio. Methanol (MeOH) at 10% concentration had the best post-thaw motility (26.3 ± 0.9%) and curvilinear velocity (VCL) compared to dimethyl acetamide and dimethyl sulfoxide. MeOH was the least toxic cryoprotectant; sperm suspended in 5 and 10% MeOH maintained motility up to 50 min. No significant differences were detected between the three types of extenders tested (0.9% sodium chloride, Calcium-free Hanks' Balance salt solution and ringer solution). P. nasutus sperm had a narrow range of optimal cooling rate. Significantly higher post-thaw motility was identified when cooling at 9.23 °C min-1, obtained by freezing at height of 14 cm above liquid nitrogen vapor for 7 min, showing lower cooling rate is suitable for this species. However, when cooling below and above the optimal cooling rate, post-thaw motility dropped drastically. There were no significant differences among the dilution ratios investigated, indicating the volume of cryodiluent at all tested ratios (1:9, 1:19 and 1:49) was sufficient for the protection of cells during the cryopreservation process. The development of the protocol for cryopreserved P. nasutus sperm will assist artificial seed production and provide an important tool for genetic and breeding research.
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Affiliation(s)
- Nurizzati Idris
- Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21300, Kuala Nerus, Terengganu, Malaysia
| | - Muhammad Yazed Abduh
- Faculty of Fisheries and Food Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Noordiyana Mat Noordin
- Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21300, Kuala Nerus, Terengganu, Malaysia; Faculty of Fisheries and Food Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Ambok Bolong Abol-Munafi
- Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21300, Kuala Nerus, Terengganu, Malaysia
| | - Ivan Chong Chu Koh
- Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21300, Kuala Nerus, Terengganu, Malaysia; Faculty of Fisheries and Food Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia.
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Ramachandran B, Jha N, Arul V. Effect of cryopreservation on post-thaw motility and viability of Grey mullet, Mugil cephalus sperm (Linnaeus, 1758). Cryobiology 2023:S0011-2240(23)00038-X. [PMID: 37207975 DOI: 10.1016/j.cryobiol.2023.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 05/09/2023] [Accepted: 05/17/2023] [Indexed: 05/21/2023]
Abstract
In this study, we optimized a simple method of cryopreservation for Mugil cephalus sperm based on post-thaw motility and viability. A series of experiments were conducted by changing the extender, cryoprotectant and freezing height above the liquid nitrogen (LN) surface. First, we carried out the cryopreservation using the extender V2E and cryoprotective agents (CPAs) namely, propylene glycol (PG), methanol (MeOH), glycerol (GLY), ethylene glycol (EG), dimethylsulfoxide (Me2SO) and dimethylacetamide (DMA) at a final concentration of 5% and 10%. We found that 10% of GLY, EG and Me2SO were more suitable compared to other CPAs. Then, different freezing heights (6, 8, 10 and 12 cm) above the LN surface were experimented with extender V2E and optimized CPAs. Then, 0.3 M of glucose, sucrose and trehalose were tested as extender along with optimized CPAs and freezing height. Additionally, the effect of fast-rate freezing and storage days (7, 30 and 180) on post-thaw sperm quality was documented using the factors optimized in earlier experiments. For all experiments, the fresh sperm was diluted at a ratio of 1:1 with cryomedium (CPA + extender), loaded into cryovials (2.0 mL) and frozen. The cryopreserved sperm was thawed at 30 °C for 90-120 s and their quality was evaluated. Among the experimented factors, sperm diluted in cryomedium (0.3 M glucose + 10% EG) and frozen at 4 cm above the LN surface registered significantly (P < 0.05) highest post-thaw motility (73 ± 2%) and (71 ± 1%) viability. Fast-rate freezing has resulted in lower (about 30%) post-thaw motility and viability of sperm. The storage days (7, 30 and 180) did not have a significant effect on post-thaw sperm quality. Overall results show that using the factors optimized through this study, high-quality sperm can be obtained after cryopreservation.
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Affiliation(s)
- Balamurugan Ramachandran
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry, 605 014, India
| | - Natwar Jha
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry, 605 014, India
| | - Venkatesan Arul
- Department of Biotechnology, School of Life Sciences, Pondicherry University, Puducherry, 605 014, India.
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Yang S, Guan J, Hua Y. Optimization of sperm cryopreservation protocol for Basa catfish (Pangasius bocourti). Cryobiology 2023:S0011-2240(23)00030-5. [PMID: 37031756 DOI: 10.1016/j.cryobiol.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 04/03/2023] [Accepted: 04/07/2023] [Indexed: 04/11/2023]
Abstract
The aim of this study was to optimize a sperm cryopreservation protocol for Basa catfish (Pangasius bocourti). Key factors for the efficiency of cryopreservation, including cryoprotectants, thawing conditions, equilibration times, dilution ratios and freezing methods, were investigated. The suitable time for post-thaw storage as well as pre-freezing cool storage was also examined. Five cryoprotectants (dimethyl sulfoxide, Me2SO; dimethylformamide, DMF; ethylene glycol, EG; propylene glycol, PG; N-methylacetamide, MA) at different final concentrations (5, 10 and 15%) were tested, 10% PG provided the best cryoprotective effect. Thawing temperature at 30-40 °C yielded significantly higher post-thaw motility than 20, 25, 50 or 60 °C. No obvious effect on sperm motility was detected either in equilibrated or thawed samples during a 2-h equilibration. Regarding dilution ratio (semen/cryomedium, v/v), percentage of motile spermatozoa was significantly higher at ratios of 2:1, 1:1 and 1:3 than those with higher ratios (1:5, 1:7 and 1:9). Thawed sperm was sensitive to post-thaw storage, but no reduction in motility was detected within 30 min. Further evaluation of the effective pre-freezing storage time indicated that sperm in diluted form had more advantage in maintaining its freezability, which could be chilled for 24 h before freezing without compromising post-thaw sperm motility. P. bocourti sperm could be successfully cryopreserved with both a programmable freezer and the floating frame technique (frozen 5 or 7 cm above the surface of liquid nitrogen). Cryopreserved sperm (77.5 ± 5.1%) fertilization was not significantly different from fresh sperm (80.9 ± 4.7%) at the ratio of 2 × 105 spermatozoa per egg. Our results provided more detailed suitable conditions for P. bocourti sperm cryopreservation than previous studies. Standardizing the cryopreservation protocol and storage time would be helpful in facilitating artificial reproduction in this species.
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Affiliation(s)
- Sen Yang
- College of Food Science and Technology, Guangdong Ocean University (Yangjiang Campus), Yangjiang, 529500, China
| | - Jingjing Guan
- College of Food Science and Technology, Guangdong Ocean University (Yangjiang Campus), Yangjiang, 529500, China
| | - Yanglin Hua
- College of Food Science and Technology, Guangdong Ocean University (Yangjiang Campus), Yangjiang, 529500, China.
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Hossen S, Kim SC, Cho Y, Kho KH. Vital Analysis of Cryopreserved Sperm of Marbled Flounder, Pseudopleuronectes yokohamae. Front Physiol 2021; 12:696737. [PMID: 34262483 PMCID: PMC8273914 DOI: 10.3389/fphys.2021.696737] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/04/2021] [Indexed: 11/19/2022] Open
Abstract
The marbled flounder (Pseudopleuronectes yokohamae) is a commercial flatfish in East Asia. The aim of this study was to improve its sperm cryopreservation protocol based on the vitality assessment of 7-day and 1-year cryopreserved sperm. Four extenders (extender-1: sucrose solution; extender-2: glucose solution; extender-3: fish Ringer's solution; and extender-4: modified fish Ringer's solution) were tested with a combination of five cryoprotectants (CPAs) (dimethyl sulfoxide: Me2SO; glycerol: GLY; ethylene glycol: EG; propylene glycol: PG; and methanol: MeOH) at four different concentrations (5, 10, 12, and 15%). Fluorescent technique was applied to detect the plasma membrane integrity (PMI), mitochondrial membrane potential (MMP), and DNA integrity of fresh and cryopreserved sperm specimens. Fresh sperm was diluted at a ratio of 1:2 (sperm:extender). Post-thaw motility of sperm cryopreserved using 15% Me2SO along with either extender-1 (86.0 ± 5.2%) or extender-2 (85.7 ± 7.1%) was similar (p > 0.05) to that of fresh sperm. Sperm cryopreserved using 12% GLY combined with extender-1 (83.67 ± 6.7%) or extender-2 (83.3 ± 4.7%) showed a similar motility to those cryopreserved with 15% Me2SO, but significantly lower from fresh sperm. The type of straw (0.25 or 0.50 mL) did not show any significant difference (p > 0.05) in post-thaw sperm motility. The highest values of PMI and MMP were observed for 7-day cryopreserved sperm using extender-1 in combination with 15% Me2SO (91.0 ± 2.9% and 90.0 ± 2.0%, respectively) or 12% GLY (90.0 ± 1.3% and 90.0 ± 4.6%, respectively). These results were similar to those of fresh sperm (95.3 ± 2.1% and 92.9 ± 2.5%, respectively). PMI and MMP of 1-year cryopreserved sperm using extender-1 in combination with 15% Me2SO (90.3 ± 2.5% and 89.3 ± 2.1%, respectively) or 12% GLY (90.0 ± 4.4% and 88.7 ± 2.2%, respectively) were significantly similar (p > 0.05) to those of fresh sperm. Sperm DNA integrity did not reveal any significant difference (p > 0.05) between fresh and cryopreserved (7-day and 1-year) sperm. Based on the assessed sperm vitality indicators, a cryopreservation protocol using extender-1 in combination with 15% Me2SO or 12% GLY has potential for hatchery as well as to create a germplasm bank.
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Affiliation(s)
- Shaharior Hossen
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, South Korea
| | - Soo Cheol Kim
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, South Korea
| | - Yusin Cho
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, South Korea
| | - Kang Hee Kho
- Department of Fisheries Science, College of Fisheries and Ocean Sciences, Chonnam National University, Yeosu, South Korea
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Yang S, Huang W, Chen H, Huang M, Liufu Y, Meng Z. Effect of chilled storage on sperm quality of basa catfish (Pangasius bocourti). FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:2133-2141. [PMID: 32829474 DOI: 10.1007/s10695-020-00860-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Basa catfish (Pangasius bocourti) is an indigenous species of the Lower Mekong River with increasing aquaculture value in Southeast Asia. Short-term semen storage has proven to be a valuable tool for assisted reproduction in fish, but little information is available on basa catfish. The present study was aimed at evaluating the effect of short-term semen storage on the sperm quality of basa catfish. Semen samples were kept at 4 °C for 7 days, either undiluted or diluted with Ca-F HBSS at different ratios (1:1, 1:3, and 1:6; semen:medium). Results showed that sperm quality was significantly affected by the time of chilled storage, characterized by a decline in sperm motility, viability, mitochondrial membrane potential (MMP), ATP content, and increased level of lipid peroxidation throughout the storage period. Compared with undiluted semen, diluted in Ca-F HBSS allowed better preservation of sperm quality during 7 days of chilled storage; dilution ratio at 1:1 was more effective than higher ratios (1:3 and 1:6) for prolonging sperm storability. In addition, sperm motility, viability, and ATP content decreased more rapidly than MMP, suggesting these indicators are more sensitive in detecting sperm damage of basa catfish during short-term chilled storage. These results obtained here will contribute to a better understanding of reproductive management in this species.
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Affiliation(s)
- Sen Yang
- College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510000, China
| | - Wenhua Huang
- 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
| | - Huichong Chen
- Guangdong Provincial Fishery Germplasm Conservation Center, Guangzhou, 511453, China
| | - Muzhen Huang
- Guangdong Provincial Fishery Germplasm Conservation Center, Guangzhou, 511453, China
| | - Yongzhong Liufu
- Guangdong Provincial Fishery Germplasm Conservation Center, Guangzhou, 511453, China
| | - Zining Meng
- 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.
- Southern Laboratory of Ocean Science and Engineering, Zhuhai, 519000, China.
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Yang Y, Liu D, Wu L, Huang W, Yang S, Xia J, Liu X, Meng Z. Comparative transcriptome analyses reveal changes of gene expression in fresh and cryopreserved yellow catfish (Pelteobagrus fulvidraco) sperm and the effects of Cryoprotectant Me 2SO. Int J Biol Macromol 2019; 133:457-465. [PMID: 31002905 DOI: 10.1016/j.ijbiomac.2019.04.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/08/2019] [Accepted: 04/08/2019] [Indexed: 10/27/2022]
Abstract
This study, for the first time in fish, compared the transcriptome of fresh and frozen-thawed sperm, and would help to better understand the effect of cryopreservation on fish sperm and then better preserve the aquatic germplasm resources. Here, we employed high-throughput sequencing technology to obtain the transcriptome of yellow catfish from fresh sperm, cryopreserved sperm with and without cryoprotectant. When cryoprotectant (Me2SO) was excluded, down-regulated genes were significantly enriched into calcium ion binding, cytoskeletal protein binding, microfilament motor activity, calmodulin binding and carnitine O-acyltransferase activity, which affected Ca2+ regulation, cellular morphology, motility and metabolism. Moreover, heat shock proteins and genes associated with regulation of cholesterol, HCO3- and protein tyrosine phosphorylation (PTP) were down-regulated, and thus would impair ability against stress, membrane rigidity, pH regulation and signal transduction of cryopreserved sperm. After Me2SO was added, the amounts of DEGs decreased significantly and down-regulation of genes were found mainly in cytoskeleton and heat shock proteins, thereby suggesting that Me2SO effectively reduced the impact caused by low temperature on gene expression. Whether adding Me2SO or not, the up-regulated genes were mainly found in ribosomal proteins genes. However, when Me2SO was added, over-expression of some genes might contribute to maintain normal function of cryopreserved sperm.
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Affiliation(s)
- Yang Yang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Dongqing Liu
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Lina Wu
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wenhua Huang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Sen Yang
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Junhong Xia
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Xiaochun Liu
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Zining Meng
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China.
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Cryopreservation of Plagiognathops microlepis sperm. Cryobiology 2018; 85:105-112. [DOI: 10.1016/j.cryobiol.2018.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 08/24/2018] [Accepted: 08/24/2018] [Indexed: 11/19/2022]
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Várkonyi L, Bokor Z, Molnár J, Fodor F, Szári Z, Ferincz Á, Staszny Á, Láng LZ, Csorbai B, Urbányi B, Bernáth G. The comparison of two different extenders for the improvement of large-scale sperm cryopreservation in common carp (Cyprinus carpio). Reprod Domest Anim 2018; 54:639-645. [PMID: 30488550 DOI: 10.1111/rda.13383] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 11/20/2018] [Indexed: 02/02/2023]
Abstract
In our study, a traditionally used (Grayling, already used in cyprinid species) and a newly tested (Pike) extender was tested to avoid sperm agglutination phenomenon following thawing during carp sperm cryopreservation. A large-scale (elevated volume of sperm) freezing method in a controlled-rate freezer using 5 ml straw and 10 ml cryotube was also systematically established. In all experiments, the sperm cryopreserved in using Grayling extender (except only one sample) showed an agglutination phenomenon (damaged and intact cells adhered to each other) after thawing where Pike extender resulted the regular cell suspension. No significant difference was observed between the two cryopreserved groups (Pike and Grayling extender) in all motility parameters using the 0.5 ml straw and the polystyrene box. Similarly, motility parameters did not show a significant difference in the two frozen groups with the 5 ml straw, also in the polystyrene box. A significantly higher progressive motility (pMOT, Grayling: 54% ± 8%, Pike: 37% ± 5%), straight line velocity (VSL, Grayling: 50 ± 5 µm/s, Pike: 39 ± 4 µm/s) and beat cross frequency (BCF, Grayling: 20 ± 1 Hz, Pike: 17 ± 1 Hz) was observed in the case of the grayling extender by the 5 ml straw cryopreserved in a controlled-rate freezer (CRF) compare to the pike extender. A significantly higher VSL (Grayling: 45 ± 3 µm/s, Pike: 38 ± 4 µm/s) was observed by the grayling extender using the 10 ml cryotube than with the pike extender. Despite the randomly occurring differences in a few parameters, our new controlled freezing method using the newly tested Pike extender, the 5 ml straw or the 10 ml cryotube can be a good solution for the preservation of elevated volume of carp sperm.
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Affiliation(s)
- Levente Várkonyi
- Department of Aquaculture, Szent István University, Agárd, Hungary
| | - Zoltán Bokor
- Department of Aquaculture, Szent István University, Agárd, Hungary
| | - József Molnár
- Department of Aquaculture, Szent István University, Agárd, Hungary
| | - Ferenc Fodor
- Balaton Fish Management Non-Profit Ltd, Siófok, Hungary
| | - Zsolt Szári
- Balaton Fish Management Non-Profit Ltd, Siófok, Hungary
| | - Árpád Ferincz
- Department of Aquaculture, Szent István University, Agárd, Hungary
| | - Ádám Staszny
- Department of Aquaculture, Szent István University, Agárd, Hungary
| | | | - Balázs Csorbai
- Department of Aquaculture, Szent István University, Agárd, Hungary
| | - Béla Urbányi
- Department of Aquaculture, Szent István University, Agárd, Hungary
| | - Gergely Bernáth
- Department of Aquaculture, Szent István University, Agárd, Hungary
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