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Hatami M, Masoudi R, Hatefi A, Alipour-Jenaghard P, Esmaeili V. The effects of MitoQ as a mitochondrial-targeted antioxidant in a plant-based extender on buck sperm quality parameters during cryopreservation. Anim Reprod Sci 2024; 266:107517. [PMID: 38823234 DOI: 10.1016/j.anireprosci.2024.107517] [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: 03/12/2024] [Revised: 05/18/2024] [Accepted: 05/27/2024] [Indexed: 06/03/2024]
Abstract
Sperm cryopreservation plays an important role in the artificial insemination (AI) industry of small ruminants. It, however the use of frozen-thawed goat semen is limited due to the insufficient number of sperm with good biological functions. Mitochondria are the most sensitive organelles to cryopreservation damage in sperm. This study was conducted to determine the effects of MitoQ, the mitochondrial-targeted antioxidant, in a plant-based extender on the quality parameters of Markhoz goat sperm after the freezing and thawing process. Semen samples were collected and diluted in the extender, divided into five equal aliquots and supplemented with 0, 1, 10, 100 and 1000 nM MitoQ and cryopreserved in liquid nitrogen. After thawing, sperm motility, membrane functionality, abnormal morphology, mitochondrial activity, acrosome integrity, lipid peroxidation (LPO), DNA fragmentation, reactive oxygen species (ROS) concentration, viability and apoptotic-like changes were measured. The use of 10 and 100 nM MitoQ resulted in higher (P≤0.05) total motility (TM), progressive motility (PM), viability, membrane functionality, mitochondrial activity, and acrosome integrity compared to the other groups. On the other hand, LPO, apoptotic-like changes, DNA fragmentation and ROS concentration were lower (P≤0.05) in MQ10 and MQ100 groups compared to the other groups. MitoQ has no effect (P>0.05) on sperm abnormal morphology and velocity parameters. In conclusion, MitoQ can reduce oxidative stress by regulating mitochondrial function during the cryopreservation process of buck sperm and could be an effective additive in the cryopreservation media to protect sperm quality.
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Affiliation(s)
- Maryam Hatami
- Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Reza Masoudi
- Animal Science Research Institute of Iran (ASRI), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.
| | - Ali Hatefi
- Department of Animal Science, University of Tehran, Karaj, Iran
| | | | - Vahid Esmaeili
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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2
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Thiangthientham P, Kallayanathum W, Juntautsa S, Leethongdee S. Sesame oil as a partial substitute for egg yolk in goat semen extenders. Anim Reprod Sci 2024; 266:107500. [PMID: 38820784 DOI: 10.1016/j.anireprosci.2024.107500] [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: 09/06/2023] [Accepted: 05/16/2024] [Indexed: 06/02/2024]
Abstract
This study aimed to evaluate the effects of replacing egg yolk extender with sesame oil on the quality of sperm in goats following incubation at 37°C, chilling at 4°C, and freezing. Semen samples were collected from four intact male goats. The individual semen sample was divided into six groups consisting of a control group and five treatment groups with different egg yolk-to-sesame oil ratios. Seminal plasma was removed, and the sperm pellet was diluted with experimental semen extenders. The control group contained an extender of 10 % egg yolk (SO0), and the experimental extenders were composed of 8.75 % egg yolk and 1.25 % sesame oil (SO1.25); 7.5 % egg yolk and 2.5 % sesame oil (SO2.5); 5 % egg yolk and 5 % sesame oil (SO5); 2.5 % egg yolk and 7.5 % sesame oil (SO7.5); and 10 % sesame oil (SO10). Each group of semen was divided into three groups, incubated at 37°C for 1 h, chilled at 4°C for 4 h, or frozen for 24 h. Five replicates were performed. Sperm quality was evaluated, including motility, viability, and functional membrane integrity. The SO1.25 group achieved the highest sperm quality rate among the treatment groups, and the extender did not have a negative effect compared to the control. However, the total replacement of egg yolk with sesame oil in an extender resulted in the lowest sperm quality. In conclusion, the ratios of egg yolk and sesame oil that were acceptable for goat semen cryopreservation were 8.75 % and 1.25 %, respectively.
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Affiliation(s)
- Pintira Thiangthientham
- The Reproduction in Domestic Animal Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Mahasarakham 44000, Thailand; Small Ruminant Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Mahasarakham 44000, Thailand.
| | - Wirakan Kallayanathum
- Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Siriluck Juntautsa
- Bioveterinary Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, MahaSarakham 44000, Thailand
| | - Sukanya Leethongdee
- The Reproduction in Domestic Animal Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Mahasarakham 44000, Thailand; Small Ruminant Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Mahasarakham 44000, Thailand.
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3
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Abdel-Ghani MA, El-Sharawy ME, Zaid EK, Shehabeldin AM, Dessouki SM, Moustapha ME, Metwally AESM, El-Shamaa IS. Low concentrations of soybean lecithin nanoparticles had a positive impact on Holstein bulls' cryopreserved semen. Reprod Domest Anim 2024; 59:e14613. [PMID: 38812417 DOI: 10.1111/rda.14613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/21/2024] [Accepted: 05/08/2024] [Indexed: 05/31/2024]
Abstract
Spermatozoa can experience negative changes when subjected to freezing and thawing, including lowered motility, viability and acrosome response. Herein, the effects of different concentrations of soybean lecithin nanoparticles on cryopreserved Holstein bull semen were examined. Semen was collected, cryopreserved and utilized for sperm kinetic parameter analysis following dilution, equilibration and thawing with 0.5% soybean lecithin (E1), the control extender, and 0.75% (E2), 0.5% (E3), 0.25% (E4) and 0.125% (E5) of lecithin nanoparticles. Results revealed that following dilution, the progressive motility (PM) at E3, E4 and E5 of lecithin nanoparticles was higher (p < .05) than it was for E2. After equilibration, compared to the E1, E2, and E3 values, the PM, vitality, normal morphology, membrane integrity and intact acrosome values at the E5 were consistently greater (p < .05). Comparing the percentages of intact acrosome and membrane integrity at E2 and E3 to E4 and E5, a substantial decrease (p < .05) was seen. Following thawing, the percentage of PM improved at E2 and E5, even though their mean PM values were similar (p > .05) compared to E1, E3 and E4. Vigour and progression parameters of sperm (DAP, DCL, DSL, VAP, VCL, VSL and STR) at E5 were higher (p < .05) than those at E1, E2, E3 and E4. In conclusion, the cryopreserved sperm from Holstein bulls revealed outstanding properties both after equilibration and after thawing with 0.125% lecithin nanoparticles, and they were sensitive to high dosages.
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Affiliation(s)
- Mohammed A Abdel-Ghani
- Department of Clinical Sciences, College of Veterinary Medicine, King Faisal University, AL-Ahsa, Saudi Arabia
- Department of Theriogenology, Faculty of Veterinary Medicine, Assuit University, Assuit, Egypt
| | - Mohamed E El-Sharawy
- Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Ebtsam K Zaid
- Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Ahmed M Shehabeldin
- Animal Production Research Institute, Agricultural Research Center, Giza, Egypt
| | - Sherif M Dessouki
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Moustapha E Moustapha
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Abd El-Salam M Metwally
- Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Ibrahim S El-Shamaa
- Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt
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Mousavi SM, Towhidi A, Zhandi M, Mohammadi-Sangcheshmeh A, Amou-Abediny G, Moradi M, Kastelic JP. A soy lecithin nanoparticles-based extender effectively cryopreserves Holstein bull sperm. Anim Reprod Sci 2023; 257:107326. [PMID: 37677889 DOI: 10.1016/j.anireprosci.2023.107326] [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: 05/25/2023] [Revised: 08/02/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023]
Abstract
Plant-based semen extenders, typically derived from soybean lecithin, are easier to modulate more and consistent in their composition than animal-based extenders. As large lecithin particles can, however, reduce effectiveness and solubility in bull semen extenders, sonication was used to create nano-lecithin (NL) particles of soybean lecithin. The objective was to determine the effects of lecithin type and concentration on the quality of frozen-thawed bovine sperm. We hypothesized that reducing the size of lecithin improves its interactions with the sperm and enhances the parameters that favor its motility, viability and fertility. Semen was collected from six mature Holstein bulls and ejaculates meeting minimum standards were pooled. Eight Tris-based extenders that contained 1, 2, 3, or 4 % of either conventional lecithin (L1-L4) or NL (NL1-NL4), plus two control extenders (one animal-based extender containing 20 % egg yolk [EY] and a commercial lecithin-based extender [BioXcell®]) were compared. Among soybean lecithin-based extenders, NL3 had the highest total and progressive sperm motility, and average path, straight-line and curvilinear sperm velocity, and was comparable to EY. Additionally, sperm mitochondrial activity was the highest in NL3, whereas sperm viability was highest in EY, NL3, and L4. Following in vitro fertilization of in vitro-matured bovine oocyes, NL3 had cleavage and hatching rates comparable to BioXcell®, but a lower blastocyst rate than EY. Overall, NL3 performed better than the other extenders for most end points, with efficiency comparable to EY. We, therefore, concluded that reducing lecithin particle size to a nano level improves sperm cryopreservation with optimal performance with 3 % NL.
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Affiliation(s)
- Seyyed Mojtaba Mousavi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Armin Towhidi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
| | - Mahdi Zhandi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | | | - Ghassem Amou-Abediny
- Faculty of Chemical Engineering, College of Engineering, University of Tehran, Iran
| | - Mehdi Moradi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - John P Kastelic
- Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada
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Li R, Zhao H, Li B, Wang S, Hua S. Soybean lecithin and cholesterol-loaded cyclodextrin in combination to enhances the cryosurvival of dairy goat semen. Cryobiology 2023; 112:104557. [PMID: 37451667 DOI: 10.1016/j.cryobiol.2023.104557] [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: 01/19/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
The objective of the study was to examine the effect of soy lecithin (SL) and cholesterol loaded cryclodestrin (CLC) on cryo-survival of sperm cryopreserved in the presence or absence of seminal plasma in Saanen dairy goats. Tris-based dilutions containing various concentrations of SL (0, 0.5%, 1.0% or 2.0%) and CLC (0, 2.0 g/L, 4.0 g/L or 6.0 g/L CLC) were used to cryopreserve Saanen dairy goat sperm. The quality of frozen-thawed sperm, including progressive motility, viability, acrosome and plasma membrane integrity, as well as fertility were detected. Results found that the optimal combination of the two cryoprotectants was 1.0% SL+4.0 g/L CLC, which significantly increased progressive motility, viability, acrosome and plasma membrane integrity of frozen thawed sperm. The impact of the two cryoprotectants in combination was not affected by the presence of seminal plasma. The conception rates obtained after artificial insemination using sperm cryopreserved with and without seminal plasma were 88.89% and 91.67% (P > 0.05), respectively. The respective values for average number of litter sizes were 1.55 ± 0.17 and 1.56 ± 0.21 (P > 0.05). Therefore, this study improved the cryopreservation efficiency of goat semen, enhanced the sperm cryosurvival, and layed a foundation for the wide application of frozen goat semen.
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Affiliation(s)
- Rong Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Hubei Zhao
- Shaanxi Sanyuan Xinghuo Dairy Goat Raising Cooperative, Xianyang, Shaanxi, 713800, China.
| | - Bowen Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Siqi Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
| | - Song Hua
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
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Molina JCJ, de Oliveira MB, Costa PHC, Santos EWPD, Correa CB, Azevedo HC. Association between different soy lecithin-based extenders and freezing rates in ram semen cryopreservation. Anim Reprod Sci 2023; 252:107234. [PMID: 37105047 DOI: 10.1016/j.anireprosci.2023.107234] [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: 08/05/2022] [Revised: 03/30/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023]
Abstract
The aim of the study was to evaluate the effect of the association between glycine-milk (GM) based extenders made with different concentrations of soy lecithin (SL) and freezing rates (FR) on semen quality after thawing. Pooled semen from rams (n = 12) were diluted in GM extenders with 20% egg yolk (EY-20%) or with different concentrations of SL: 0.5% (SL-0.5%), 1.0% (SL-1.0%), and 2.0% (SL-2.0%). The diluted semen (150 ×106 spermatozoa/0.25 mL) was frozen at three FR of - 10, - 20, and - 60 °C/min, and subsequently thawed and analyzed. Results revealed that EY-20% and SL-2.0% had better kinetic parameters, and showed higher proportions of viable, non-apoptotic, plasma-membrane-intact spermatozoa (A-/PI-) and non-capacitated spermatozoa (F), and had lower acrosome-reacted spermatozoa (AR) in the EY-20% and satisfactory values for SL-2.0% compared to SL-0.5% and SL-1.0% (P < 0.05). The FR at - 20 and - 60 °C/min maintained higher A-/PI- and viable spermatozoa compared to - 10 °C/min. The combination EY-20% and - 60 °C/min showed the highest A-/PI- and F (P < 0.05) and the lowest AR, and it did not differ from the combinations EY-20% at - 20 °C/min and SL-2.0% at - 20 °C/min (P > 0.05). In conclusion, the combination EY-20% and - 60 °C/min, showed the best cryoprotective effects on ram spermatozoa. Changes in spermatozoa after thawing were related to the use of the type of extender, the amounts of the same compound in the extender, and the freezing rates to which they were subjected.
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Affiliation(s)
| | | | - Paulo Henrique Conceição Costa
- Brazilian Agricultural Research Corporation, EMBRAPA, Embrapa Tabuleiros Costeiros, Embrapa Coastal Tablelands, Aracaju, Sergipe, Brazil
| | | | - Cristiane Bani Correa
- Postgraduate Program in Health Sciences, Federal University of Sergipe, Aracaju, Sergipe, Brazil
| | - Hymerson Costa Azevedo
- Brazilian Agricultural Research Corporation, EMBRAPA, Embrapa Tabuleiros Costeiros, Embrapa Coastal Tablelands, Aracaju, Sergipe, Brazil.
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Liang J, Larbi A, Lv C, Ali S, Wu G, Quan G. Fertility results after exocervical insemination using goat semen cryopreserved with extenders based on egg yolk, skim milk, or soybean lecithin. Reprod Domest Anim 2023; 58:431-442. [PMID: 36510740 DOI: 10.1111/rda.14304] [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: 10/07/2022] [Revised: 11/10/2022] [Accepted: 12/01/2022] [Indexed: 12/15/2022]
Abstract
To evaluate the effects of four extenders on the post-thaw quality and fertility of goat semen, six Yunshang Black bucks' semen was collected, pooled, diluted with Andromed® (Andr®), Optidyl® (Opt®), P3644 Sigma l-phosphatidylcholine (l-α SL), and skim milk-based (Milk) extenders, and then cryopreserved. The sperm motilities, abnormalities, membrane and acrosome integrity, mitochondrial activity, apoptosis, and reactive oxygen species (ROS) production were evaluated after thawing. After exocervical insemination with the thawed semen, the pregnancy, lambing, and twinning rates were recorded and compared. The results showed that sperm motilities, membrane integrity, acrosome integrity, mitochondrial activity, and viable spermatozoa were significantly higher in the Andr® and Opt® groups than those in the l-α SL and Milk groups (p < .05). Furthermore, there was no difference between Andr® and Opt® (p > .05). The sperm abnormality was lower in semen frozen with the Andr® or Opt® extenders, as compared to the l-α SL or Milk extender (p < .05). Regarding, the viable cells with low ROS production, the optimal results were obtained in the semen frozen with Andr® and Opt® extenders. Following exocervical insemination, the pregnancy and lambing rates in the Milk group were significantly lower than those in the other groups (p < .05). No difference was found in the pregnancy and lambing rates between Andr®, Opt®, and l-α SL (p > .05). Furthermore, the twinning rates were similar between these four groups (p > .05). In conclusion, egg yolk or skim milk can be substituted by soybean lecithin during cryopreservation of goat semen.
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Affiliation(s)
- Jiachong Liang
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Kunming City, China
| | - Allai Larbi
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Laboratory of Sustainable Agriculture Management, Higher School of Technology-Sidi Bennour, Chouaıb Doukkali University, El Jadida, Morocco
| | - Chunrong Lv
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Kunming City, China
| | - Sikandar Ali
- Dow Institute for Advanced Biological and Animal Research, Dow University of Health Sciences, Karachi, Pakistan
| | - Guoquan Wu
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Kunming City, China.,Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming City, China
| | - Guobo Quan
- Yunnan Animal Science and Veterinary Institute, Kunming City, China.,Yunnan Provincial Genebank of Livestock and Poultry Genetic Resources, Kunming City, China.,Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming City, China
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Kalwar Q, Chu M, Korejo RA, Soomro H, Yan P. Cryopreservation of Yak Semen: A Comprehensive Review. Animals (Basel) 2022; 12:ani12243451. [PMID: 36552371 PMCID: PMC9774175 DOI: 10.3390/ani12243451] [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: 11/01/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 12/13/2022] Open
Abstract
An urgent need to boost the sustainability and efficiency of animal production exists, owing to the growing global population. Enhancing the global fertility of animals, especially cattle, is essential to ameliorate this issue. Artificial insemination and sperm cryopreservation have a considerable and favorable influence on the quantity and quality of the cattle produced. Sperm cryopreservation is crucial for livestock production because it promotes and accelerates genetic diversity and the worldwide dispersion of animals with enhanced genetics. Owing to the importance of cryobiology in reproductive technologies, researchers are developing new approaches, and they are testing cryoprotectant drugs to enhance sperm cryosurvival. However, the viability of sperm after freezing is low and widely varies across breeding yaks. These faults are crucial because they impede advances in reproductive biotechnology and the study of mammalian gametes at a fundamental level. Using chemicals, researchers have developed and enhanced various extenders with varying degrees of efficiency to reduce cryodamage and oxidative stress. In this article, we review the cryopreservation of yak semen, the development of extenders, the difficulties faced during cryopreservation, and the evaluation of semen quality using various methodologies. This review might be helpful for researchers exploring semen cryopreservation in the future, as demand for enhanced cryopreservation exists to boost the post-thaw viability and fertility of sperm.
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Affiliation(s)
- Qudratullah Kalwar
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China
- Department of Animal Nutrition, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand 67210, Pakistan
| | - Min Chu
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China
- Correspondence: (M.C.); (P.Y.); Tel.: +86-931-211-5288 (P.Y.); Fax: +86-931-211-5191 (P.Y.)
| | - Rashid Ali Korejo
- Department of Animal Nutrition, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand 67210, Pakistan
| | - Hidayatullah Soomro
- Department of Animal Nutrition, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand 67210, Pakistan
| | - Ping Yan
- Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Science, Lanzhou 730050, China
- Correspondence: (M.C.); (P.Y.); Tel.: +86-931-211-5288 (P.Y.); Fax: +86-931-211-5191 (P.Y.)
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Araújo Silva RAJ, Monteiro MM, Costa JAS, Mergulhão FCC, Monteiro PLJ, Silva DMF, Santos Filho AS, Souza AF, Batista AM, Guerra MMP. Dimethylformamide Preserves the Integrity of Cryopreserved Goat Semen in a Soybean Lecithin-Based Extender. Biopreserv Biobank 2022; 20:502-508. [PMID: 34788548 DOI: 10.1089/bio.2021.0049] [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] [Indexed: 11/13/2022] Open
Abstract
This study investigated the cryoprotectant effects of dimethylformamide (DMF), ethylene glycol (EG), and dimethyl sulfoxide (DMSO) as substitutes for glycerol (GLY) in a soybean lecithin (SL)-based extender in the cryopreservation of buck sperm. In this study, the semen of three Saanen bucks was individually extended in SL supplemented with 5% GLY (control), DMF, EG, or DMSO. After this, the extended semen was cryopreserved and two straws from each group were thawed (37°C for 30 seconds), pooled, and analyzed for sperm motion parameters, plasma membrane integrity (PMI), acrosomal integrity (ACI), and high mitochondrial membrane potential (HMMP). Samples were analyzed after 15 minutes (T0) and after 2 hours of incubation at 37°C (T2). The results revealed higher values of motility (total and progressive) and sperm motion parameters for DMF than the other cryoprotectants (p < 0.0001). PMI and HMMP did not differ (p > 0.05) between GLY and DMF, but ACI was higher (p < 0.01) for DMF compared with GLY. Based on these results, DMF and GLY samples were used in heterologous in vitro fertilization assays by using bovine oocytes (n = 337) obtained from a slaughterhouse. No differences (p > 0.05) were observed between GLY and DMF for unfertilized (GLY: 38.8%; DMF: 25.33%), pronucleus (GLY: 25.68%; DMF: 27.92%), and cleavage rates (GLY: 35.52%; DMF: 46.75%). Based on these results, it is concluded that DMF preserves sperm motion characteristics and ACI better than GLY, EG, and DMSO, and it is the penetrating cryoprotectant of choice for the cryopreservation of buck sperm in SL extender.
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Affiliation(s)
| | - Millena M Monteiro
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Joana A S Costa
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Flávio C C Mergulhão
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | | | - Diogo M F Silva
- Laboratório de Fisiologia Animal e Molecular Aplicada, Departamento de Fisiologia Animal, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | | | - Andréia F Souza
- Departamento de Zootecnia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - André M Batista
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Maria Madalena P Guerra
- Andrology Laboratory, Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco, Recife, Brazil
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10
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Advances in sperm cryopreservation in farm animals: Cattle, horse, pig and sheep. Anim Reprod Sci 2022; 246:106904. [PMID: 34887155 DOI: 10.1016/j.anireprosci.2021.106904] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 12/14/2022]
Abstract
Sperm cryopreservation is one of the most important procedures in the development of biotechnologies for assisted reproduction. In some farm animals, the use of cryopreserved sperm has so many benefits for which relevance has become more evident in recent decades. Values for post-thaw sperm quality, however, are variable among species and within individuals of the same species. There is no standardized methodology for each of the stages of the cryopreservation procedure (andrological examination, semen collection, dilution, centrifugation, resuspension of the pellet with the freezing medium, packaging, freezing and post-thaw sperm evaluation), which also contributes to differences among studies. Cryotolerance markers of sperm and seminal plasma (SP) have been evaluated for prediction of ejaculate freezability. In addition, in previous research, there has been a focus on supplementing cryopreservation media with different substances, such as enzymatic and non-enzymatic antioxidants. In most studies, inclusion of these substances have led to improved post-thaw sperm quality and fertilizing capacity as a result of minimizing the adverse effects on sperm structure and function. Another approach is the use of different cryoprotectants. The aim with this review article is to provide an update on sperm cryopreservation in farm animals. The main detrimental effects of cryopreservation are described, including the negative repercussion on reproductive performance. Furthermore, the potential use of molecular biomarkers to predict sperm cryotolerance is discussed, as well as the addition of substances that can mitigate the harmful impact of freezing and thawing on sperm.
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Akhtar MF, Ma Q, Li Y, Chai W, Zhang Z, Li L, Wang C. Effect of Sperm Cryopreservation in Farm Animals Using Nanotechnology. Animals (Basel) 2022; 12:ani12172277. [PMID: 36077996 PMCID: PMC9454492 DOI: 10.3390/ani12172277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/27/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
Sperm cryopreservation is one of the sublime biotechnologies for assisted reproduction. In recent decades, there has been an increasing trend in the use of preserved semen. Post-thaw semen quality and values vary among animals of the same species. Similarly, there are species-specific variations in sperm morphology, i.e., sperm head, kinetic properties, plasma membrane integrity, and freezability. Similarly, the viability of sperm varies in the female reproductive tract, i.e., from a few hours (in cattle) to several days (in chicken). Various steps of sperm cryopreservation, i.e., male health examination, semen collection, dilution, semen centrifugation, pre- and post-thaw semen quality evaluation, lack standardized methodology, that result in differences in opinions. Assisted reproductive technologies (ART), including sperm preservation, are not applied to the same extent in commercial poultry species as in mammalian species for management and economic reasons. Sperm preservation requires a reduction in physiological metabolism by extending the viable duration of the gametes. Physiologically and morphologically, spermatozoa are unique in structure and function to deliver paternal DNA and activate oocytes after fertilization. Variations in semen and sperm composition account for better handling of semen, which can aid in improved fertility. This review aims to provide an update on sperm cryopreservation in farm animals.
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12
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Carro M, Luquez JM, Peñalva DA, Buschiazzo J, Hozbor FA, Furland NE. PUFA-rich phospholipid classes and subclasses of ram spermatozoa are unevenly affected by cryopreservation with a soybean lecithin-based extender. Theriogenology 2022; 186:122-134. [PMID: 35468546 DOI: 10.1016/j.theriogenology.2022.03.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/15/2022] [Accepted: 03/29/2022] [Indexed: 01/10/2023]
Abstract
Cryopreservation is known to affect spermatozoa structure and function. Ram sperm are among the most highly sensitive mammalian gametes to freezing, due to their lipid composition, which limit their efficiency in artificial insemination programs. The aim of this study was to investigate the effects of cryopreservation with a chemically defined soybean lecithin-based extender on ram spermatozoa functionality on the one hand, and quantifiable changes in lipid and fatty acid profile on the other. Freeze-thawing decreased sperm quality, as indicated by post-thaw parameters related to membrane integrity, mitochondrial viability and sperm motility. The most relevant lipid change after cryopreservation was a remarkable loss of all glycerophospholipids containing 22:6n-3. Species of sphingomyelin with very long chain polyunsaturated fatty acids (VLC-PUFA), that are exclusively located in the sperm head, where responsible of its reduction after cryostorage. Freezing caused a reduction in mitochondrial function, which was confirmed by significantly decreased of mitochondrial membrane potential and by the generation of 4-HNE. Mitochondria damage was accompanied by a loss in cardiolipin with 18:2n-6 and phosphatidylethanolamine with 20:4n-6, two well-known lipids that are critical components for mitochondrial membrane functionality. Loss of sterols after cryopreservation occurred along with a decrease in the order of sperm membrane lipids. Our research provides new insights on deleterious effects of cryopreservation on PUFA-rich phospholipids of ram sperm and highlight their importance as biomarkers of ultrastructural, biochemical and functional damage that ram spermatozoa undergo after freezing-thawing.
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Affiliation(s)
- M Carro
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce, Argentina
| | - J M Luquez
- Instituto de Investigaciones Bioquímicas de Bahía Blanca, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y Universidad Nacional del Sur (UNS), 8000, Bahía Blanca, Argentina
| | - D A Peñalva
- Instituto de Investigaciones Bioquímicas de Bahía Blanca, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y Universidad Nacional del Sur (UNS), 8000, Bahía Blanca, Argentina
| | - J Buschiazzo
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce, Argentina
| | - F A Hozbor
- Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Balcarce, Argentina
| | - N E Furland
- Instituto de Investigaciones Bioquímicas de Bahía Blanca, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y Universidad Nacional del Sur (UNS), 8000, Bahía Blanca, Argentina.
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Akourki A, Echegaray A, Perdomo O, Escartin NA, Guillén M. Effects of Gossypium spp., Balanites aegyptiaca, and Sesamum indicum seeds oils on quality of chilled and frozen-thawed ram semen. Vet World 2021; 14:1412-1419. [PMID: 34316186 PMCID: PMC8304443 DOI: 10.14202/vetworld.2021.1412-1419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 04/15/2021] [Indexed: 11/21/2022] Open
Abstract
Background and Aim: Essential oils found frequently in plants are well known for their activities against bacteria, viruses, and fungi, and antioxidant properties. This study aimed to analyze egg yolk replacement by seed oils of Gossypium spp. (cotton), Balanites aegyptiaca (desert date), and Sesamum indicum (sesame) in semen extender, on ram sperm quality chilled at 4°C and frozen-thawed. Materials and Methods: Ejaculates were collected from adult rams and refrigerated at 4°C in a Tris-based extender containing 1.25%, 2.5%, 5%, and 10% of Gossypium spp., B. aegyptiaca, and S. indicum seed oils, to evaluate which were the two best extenders for comparison with BIOXcell, a commercial extender for deep freezing ram semen. Results: The data showed that sperm movements analyzed by the CASA system were faster in extenders supplemented with 2.5-5% of cottonseed oil and 1.25-10% of sesame oil, whereas in the extender containing B. aegyptiaca oil, all seminal parameters studied had the worst values. During the sperm-freezing process, 5% of cottonseed oil and 5% sesame seed oil were selected from the first study, with sesame oil reaching the best sperm quality. Thus, sperm motility and velocity were 44.14±13.99%, 24.44±12.6%, and 25.92±11.50%; and 20.26±9.56%, 8.76±6.38%, and 9.42±5.40%, respectively, for sesame oil, cottonseed oil, and BIOXcell. Conclusion: In summary, 2.5-10% of cottonseed oil and 1.25-10% of sesame seed oil can replace egg yolk in a Tris–egg yolk–based extender. Moreover, a Tris-based extender supplemented with 5% sesame seed oil could be an alternative for deep freezing ram semen, even though these results need to be confirmed with semen collected from rams with appropriate sexual rest.
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Affiliation(s)
- Adamou Akourki
- Enseignant Chercheur, Université Dan Dicko Dankoulodo de Maradi, BP: 465 Maradi, Niger
| | - Arantxa Echegaray
- Departamento de Reproducción animal del HUMECO, C/Mecanica 11. 22006 Huesca. Spain
| | - Orlando Perdomo
- Departamento de Reproducción animal del HUMECO, C/Mecanica 11. 22006 Huesca. Spain
| | | | - Marta Guillén
- Departamento de Reproducción animal del HUMECO, C/Mecanica 11. 22006 Huesca. Spain
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14
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Mahiddine FY, Kim MJ. Overview on the Antioxidants, Egg Yolk Alternatives, and Mesenchymal Stem Cells and Derivatives Used in Canine Sperm Cryopreservation. Animals (Basel) 2021; 11:1930. [PMID: 34203537 PMCID: PMC8300182 DOI: 10.3390/ani11071930] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 12/27/2022] Open
Abstract
Sperm cryopreservation is a widely used assisted reproductive technology for canine species. The long-term storage of dog sperm is effective for the breeding of dogs living far apart, scheduling the time of artificial insemination that suits the female, and preventing diseases of the reproductive tract. However, spermatozoa functions are impaired during the freeze-thaw processes, which may decrease reproductive performance. Numerous attempts have been made to restore such impairments, including the use of cryoprotectants to prevent the damage caused by ice crystal formation, and supplementation of antioxidants to reduce reactive oxygen species generation due to osmotic stress during the procedure. Egg yolk derivatives, antioxidants, and, more recently, mesenchymal stem cells (MSCs) and their derivatives have been proposed in this research field. This review article will summarize the current literature available on the topic.
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Affiliation(s)
| | - Min-Jung Kim
- Department of Research and Development, Mjbiogen Corp., Gwangnaru-ro 144, Seoul 14788, Korea;
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15
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Bustani GS, Baiee FH. Semen extenders: An evaluative overview of preservative mechanisms of semen and semen extenders. Vet World 2021; 14:1220-1233. [PMID: 34220124 PMCID: PMC8243668 DOI: 10.14202/vetworld.2021.1220-1233] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 03/25/2021] [Indexed: 11/30/2022] Open
Abstract
Reproduction is fundamental for all living things as it ensures the continued existence of a species and an improved economy in animal husbandry. Reproduction has developed since history, and diverse processes, such as artificial insemination and in vitro fertilization, have been developed. Semen extenders were discovered and developed to protect sperm from harmful factors, such as freeze and osmotic shock, oxidative stress, and cell injury by ice crystals. Semen extenders preserve sperm by stabilizing its properties, including sperm morphology, motility, and viability and membrane, acrosomal, and DNA integrity. Therefore, semen extenders must provide a favorable pH, adenosine triphosphate, anti-cooling and anti-freeze shock, and antioxidant activity to improve semen quality for fertilization. Hence, this review provides precise data on different semen extenders, preservative mechanisms, and essential additives for semen extenders in different animals.
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Affiliation(s)
| | - Falah Hasan Baiee
- Department of Clinical Science, Faculty of Veterinary Medicine, University of Kufa, Kufa 54003, Najaf, Iraq
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16
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Cryopreservation of sperm from farmed Pacific abalone, Haliotis discus hannai. Cryobiology 2020; 94:49-56. [PMID: 32387287 DOI: 10.1016/j.cryobiol.2020.04.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 11/24/2022]
Abstract
This study aimed to improve a sperm cryopreservation protocol for farmed Pacific abalone, Haliotis discus hannai. Dimethyl sulfoxide (Me2SO), glycerol, ethylene glycol (EG), propylene glycol (PG), and methanol were chosen as cryoprotectants (CPAs). Four different equilibration time (5, 10, 30, and 60 min), and two types of equilibration temperature (4 °C and 20 °C) were selected at the present experiment. Most equilibration temperatures with each CPA showed significant differences among different equilibration time. Post-thaw sperm motility of five CPAs showed no significant difference at two equilibration temperature. Based on these results, 8% Me2SO, 8% EG, 6% PG, 2% glycerol, and 2% methanol were chosen to determine optimal conditions for sperm cryopreservation of H. discus hannai. The highest post-thaw sperm motility (8% Me2SO: 50.6%, 8% EG: 45.6%, 2% glycerol: 44.5%, 6% PG: 28.7%, 2% methanol: 25.4%) was achieved after exposing sperm to liquid nitrogen (LN2) vapor for 10 min at 5 cm above the LN2 surface and then submerging them in LN2 for at least 2 h followed by thawing at 60 °C with seawater and recovering them at 20 °C with seawater. In this study, 8% Me2SO and 2% glycerol were chosen to check post-thaw sperm quality to estimate percentages of plasma membrane integrity (PMI), mitochondrial potential analysis (MP), and acrosome integrity (AI) using fluorescent techniques. No significant difference in PMI, MP, and AI was found between sperm cryopreserved with 8% Me2SO and those cryopreserved with 2% glycerol. The current study has demonstrated that 8% Me2SO was optimal for sperm cryopreservation for H. discus hannai with 5 min of equilibration time, 5 cm of rack height and 60 °C of thawing temperature. The present research provides more effective cryopreservation methods for H. discus hannai sperm than previous studies.
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17
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Alcay S, Ustuner B, Aktar A, Mulkpinar E, Duman M, Akkasoglu M, Cetinkaya M. Goat semen cryopreservation with rainbow trout seminal plasma supplemented lecithin-based extenders. Andrologia 2020; 52:e13555. [PMID: 32107791 DOI: 10.1111/and.13555] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/20/2019] [Accepted: 02/04/2020] [Indexed: 11/30/2022] Open
Abstract
The objective of this study was to determine the optimum concentrations of rainbow trout seminal plasma (RTS) supplemented extenders for goat semen quality at post-thaw and after incubation. Five sexually mature Saanen goat (Capra aegagrus hircus) were used for semen collection. Pooled semen was diluted with soybean lecithin-based extender without RTS (control) or supplemented with different concentrations of RTS (1%, 2%, 4% or 8%), at a final concentration of 150 × 106 spermatozoon/ml. Sperm motility, plasma membrane functional integrity (HOST), damaged acrosome (PSA-FITC), mitochondrial activity (rhodamine123) and DNA integrity (TUNEL) were evaluated. Spermatological parameters were evaluated at post-thaw and after 6 hr incubation. RTS8 group preserved sperm motility, acrosomal integrity, plasma membrane functional integrity and mitochondrial function better than the control group (p < .05). The study demonstrated that RTS supplemented lecithin-based extenders have useful effects on goat spermatozoa. In addition, the results of the current study represented the positive effect of using 8% RTS supplemented extender.
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Affiliation(s)
- Selim Alcay
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Burcu Ustuner
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Ahmet Aktar
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Emine Mulkpinar
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Muhammed Duman
- Department of Aquatic Animal Disease, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Mustafa Akkasoglu
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
| | - Mehmet Cetinkaya
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Bursa, Turkey
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18
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Erdmann RH, Blank MH, Ribeiro RN, José de Oliveira M, Cubas ZS, Pradiee J, Goularte KL, Moreira N. Cryopreservation of margay (Leopardus wiedii) spermatozoa: Effects of different extenders and frozen protocols. Theriogenology 2019; 143:27-34. [PMID: 31830687 DOI: 10.1016/j.theriogenology.2019.11.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 10/23/2019] [Accepted: 11/27/2019] [Indexed: 01/07/2023]
Abstract
Sperm cryopreservation offers many benefits to wild felids conservation programs. However, the implementation of these programs is limited by the different responses of each species to the cryopreservation protocols and extenders used, requiring the formulation of species-specific protocols. For this purpose, semen samples from 6 margays (Leopardus wiedii) were submitted to 2 cryopreservation protocols: 1) manual freezing (cooling rate of - 0.33 °C/min at 5 °C/180 min and freezing rate with two steps - 9 °C/min for 2 min and -19.1 °C/min for 2 min) and 2) automatic freezing machine (cooling rate of - 0.25 °C/min at 5 °C/120 min and freezing rate with one step -20 °C/min for 8.3 min) using 2 commercial extenders, an egg yolk-based (Test Yolk Buffer; TYB) and an egg yolk-free extender (AndroMed; MED). Post-thawed sperm quality was assessed at 3 time points (immediately after thawing and 1 and 2 h post-thawed) by sperm motility index (SMI), plasma membrane and acrosomal integrity, and mitochondrial membrane potential (MMP). Regarding SMI, TYB yielded superior results (29.4 ± 3.5%) compared to MED (11.2 ± 2.8%; p < 0.002) immediately after thawing until 2 h after thawing (TYB 3.9 ± 1.7% and MED 0.0 ± 0.0%; p < 0.05). Furthermore, the automated freezing method provided higher motility compared to the manual freezing procedure immediately post-thaw (25.08 ± 3.66% and 15.78 ± 3.29%, respectively) and 1 h post-thaw (13.71 ± 2.56% and 6.03 ± 1.97%, respectively; p < 0.05). The percentage of intact acrosomes and plasma membranes and the percentage of sperm with high MMP were superior for TYB when compared to MED regardless of cryopreservation protocol (p < 0.05). Conversely, the interaction between cryopreservation protocols and extenders was observed for MMP where TYB exhibits better results compared to MED (p < 0.05) in both procedures, but it was higher in automated procedures. For MED, no changes were found in MMP between procedures. Considering only TYB, samples showed higher MMP when submitted to an automated procedure (p < 0.05). In conclusion, the slow cooling rates with shorter time of exposure to glycerol contributed to minimize cryodamage in the Margays' sperm. Moreover, results indicated that association between TYB and automatic freezing machine ensured the minimal quality of spermatozoa after thawing required for further use in in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI).
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Affiliation(s)
- Renato Herdina Erdmann
- Pontifical Catholic University of Paraná, School of Life Science, College of Veterinary Medicine, Toledo, Paraná, Brazil
| | - Marcel Henrique Blank
- Department of Animal Reproduction, College of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil.
| | - Rodrigo Neca Ribeiro
- Pontifical Catholic University of Paraná, School of Life Science, College of Veterinary Medicine, Toledo, Paraná, Brazil
| | | | | | - Jorgea Pradiee
- Federal University of Pelotas, College of Veterinary Medicine, Pelotas, Rio Grande do Sul, Brazil
| | - Karina Lemos Goularte
- Federal University of Pelotas, College of Veterinary Medicine, Pelotas, Rio Grande do Sul, Brazil
| | - Nei Moreira
- Federal University of Paraná, Department of Biosciences, Palotina, Paraná, Brazil.
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Ugur MR, Saber Abdelrahman A, Evans HC, Gilmore AA, Hitit M, Arifiantini RI, Purwantara B, Kaya A, Memili E. Advances in Cryopreservation of Bull Sperm. Front Vet Sci 2019; 6:268. [PMID: 31552277 PMCID: PMC6736622 DOI: 10.3389/fvets.2019.00268] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 08/02/2019] [Indexed: 12/13/2022] Open
Abstract
Cryopreservation of semen and artificial insemination have an important, positive impact on cattle production, and product quality. Through the use of cryopreserved semen and artificial insemination, sperm from the best breeding bulls can be used to inseminate thousands of cows around the world. Although cryopreservation of bull sperm has advanced beyond that of other species, there are still major gaps in the knowledge and technology bases. Post-thaw viability of sperm is still low and differs significantly among the breeding bulls. These weaknesses are important because they are preventing advances both in fundamental science of mammalian gametes and reproductive biotechnology. Various extenders have been developed and supplemented with chemicals to reduce cryodamage or oxidative stress with varying levels of success. More detailed insights on sperm morphology and function have been uncovered through application of advanced tools in modern molecular and cell biology. This article provides a concise review of progress in the cryopreservation of bull sperm, advances in extender development, and frontiers using diverse techniques of the study of sperm viability. This scientific resource is important in animal biotechnology because with the advances in discovery of sperm fertility markers, there is an urgent need to improve post-thaw viability and fertility of sperm through enhanced cryopreservation for precision agriculture to produce food animals to ensure food security on the global scale.
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Affiliation(s)
- Muhammet Rasit Ugur
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States
| | - Amal Saber Abdelrahman
- Department of Clinic, Reproduction and Pathology, Faculty of Veterinary Medicine, Bogor Agricultural University, Bogor, Indonesia
| | - Holly C. Evans
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States
| | - Alicia A. Gilmore
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States
| | - Mustafa Hitit
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States
- Department of Genetics, Faculty of Veterinary Medicine, Kastamonu University, Kastamonu, Turkey
| | - Raden Iis Arifiantini
- Department of Clinic, Reproduction and Pathology, Faculty of Veterinary Medicine, Bogor Agricultural University, Bogor, Indonesia
| | - Bambang Purwantara
- Department of Clinic, Reproduction and Pathology, Faculty of Veterinary Medicine, Bogor Agricultural University, Bogor, Indonesia
| | - Abdullah Kaya
- Department of Reproduction and Artificial Insemination, Selcuk University, Konya, Turkey
| | - Erdogan Memili
- Department of Animal and Dairy Sciences, Mississippi State University, Starkville, MS, United States
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KALITA MANOJKUMAR, SINHA SUDIP, DEKA BHARATCHANDRA, BISWAS RANJANKUMAR, BARKALITA LUITMANI, BORAH RUMISAIKIA. Efficacy of soy-lecithin for replacing egg yolk in tris extender on quality of frozen buck semen. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2019. [DOI: 10.56093/ijans.v89i4.89137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The present study undetaken to find the efficacy of incorporating soy-lecithin in tris extender for replacing egg yolk, a widely used animal component. Pooled ejaculates (40), 10 from each of four bucks maintained at Goat Research Station, Burnihat were used for freezing in tris extender containing 1% and 1.5% soy-lecithin and 20% egg yolk by adopting split sample technique following conventional method. The post thaw sperm motility in 1.5% soy-lecithin-tris extender (60.20±0.45%) was comparable with that of 20% egg yolk-tris (61.20±0.45%), the difference being non-significant. However, the post thaw values for live sperm, intact acrosome and hypo-osmotic swollen sperm were significantly lower in 1.5% soy-lecithin-tris as compared to that in 20% egg yolk-tris. The post thaw values were significantly higher for 1.5% than that for 1% soy-lecithin for all the parameters studied. It could be concluded that 1.5% soy-lecithin-tris extender has similar efficacy with that of 20% egg yolk-tris extender in respect of post thaw sperm motility; however, significantly lower post thaw values for remaining sperm qualities obtained with soy-lecithin in tris-based extender necessitate further trials comprising higher number of ejaculates from more bucks to find a suitable level of soy-lecithin for replacing egg yolk in tris extender for freezing of goat semen.
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21
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Lv C, Wu G, Hong Q, Quan G. Spermatozoa Cryopreservation: State of Art and Future in Small Ruminants. Biopreserv Biobank 2019; 17:171-182. [DOI: 10.1089/bio.2018.0113] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Chunrong Lv
- Yunnan Animal Science and Veterinary Institute, Kunming, China
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming, China
- Yunnan Provincial Meat Caprine Engineering Research Center, Kunming, China
| | - Guoquan Wu
- Yunnan Animal Science and Veterinary Institute, Kunming, China
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming, China
- Yunnan Provincial Meat Caprine Engineering Research Center, Kunming, China
| | - Qionghua Hong
- Yunnan Animal Science and Veterinary Institute, Kunming, China
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming, China
- Yunnan Provincial Meat Caprine Engineering Research Center, Kunming, China
| | - Guobo Quan
- Yunnan Animal Science and Veterinary Institute, Kunming, China
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Kunming, China
- Yunnan Provincial Meat Caprine Engineering Research Center, Kunming, China
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22
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Abstract
SummaryThe effects of adding fulvic acids (FAs) to semen extenders on the quality parameters of frozen–thawed goat buck spermatozoa remain undetermined. Buck semen samples collected from six mature goat bucks once a week were diluted with Tris–egg yolk-based extenders. The diluted semen samples were supplemented with FAs (0.2, 0.4 and 0.6%, w/w), cryopreserved, and evaluated for sperm-quality parameters. Addition of FAs to the extender increased progressive motility, acrosome integrity, membrane integrity, and superoxide dismutase and catalase activities and decreased percentage abnormality and sperm malondialdehyde level compared with the control group. However, excessive FA addition (>0.4%, w/w) to semen extenders did not improve the efficiency. The results indicated that FAs could be a promising cryoprotectant for goat buck sperm.
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23
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Lima-Verde IB, Johannisson A, Ntallaris T, Al-Essawe E, Al-Kass Z, Nongbua T, Dórea F, Lundeheim N, Kupisiewicz K, Edman A, Morrell JM. Effect of freezing bull semen in two non-egg yolk extenders on post-thaw sperm quality. Reprod Domest Anim 2018; 53:127-136. [PMID: 28960537 DOI: 10.1111/rda.13080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 08/14/2017] [Indexed: 12/01/2022]
Abstract
Traditionally, extenders for bull semen included egg yolk or milk, but recently there has been a move to avoid material of animal origin. The aim of this study was to evaluate the effects of two commercial extenders (based on soya lecithin and liposomes) on bull sperm quality after cryopreservation. Post-thaw sperm quality was evaluated by computer-assisted sperm analysis and flow cytometric assessment of membrane integrity, chromatin integrity, mitochondrial membrane potential, production of reactive oxygen species and tyrosine phosphorylation. Furthermore, an artificial insemination (AI) trial was conducted, and 56-day non-return rates were evaluated. Semen frozen in the liposome-based extender showed similar membrane integrity and higher mitochondrial membrane potential compared to those in the soya lecithin-based extender. Chromatin integrity and production of live H2 O2 + reactive oxygen species were similar in both extenders. Less superoxide was produced in the samples extended with liposome-based extender, with or without menadione stimulation. Chromatin integrity and tyrosine phosphorylation were not affected by either type of extender. No differences in 56-day non-return rate between extenders containing soya lecithin and liposomes were observed in the AI trial (66% ± 0.8 and 65% ± 0.8, respectively). In conclusion, the sperm quality of bull semen frozen in the two extenders that do not contain material of animal origin was similar, although the semen frozen in the liposome-based extender had higher mitochondrial membrane potential. Either extender could be used in situations where extenders containing material of animal origin are to be avoided.
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Affiliation(s)
- I B Lima-Verde
- Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
- University Tiradentes, Technology and Research Institute, Aracaju-SE, Brazil
| | - A Johannisson
- Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - T Ntallaris
- Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
| | - E Al-Essawe
- Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
- Clinical Reproductive Physiology, Al-Nahrain University - High Institute of Infertility Diagnosis and Assisted Reproductive Technologies, Baghdad, Iraq
| | - Z Al-Kass
- Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
- Department of Surgery and Theriogenology, College of Veterinary Medicine, University of Mosul, Mosul, Iraq
| | - T Nongbua
- Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
- Clinical Sciences, Mahasarakham University, Mahasarakham, Thailand
| | - F Dórea
- National Veterinary Institute, Uppsala, Sweden
| | - N Lundeheim
- Department of Animal Breeding and Genetics, SLU, Uppsala, Sweden
| | | | - A Edman
- Viking Genetics, Örnsro, Skara, Sweden
| | - J M Morrell
- Clinical Sciences, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden
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Wang Y, Dong S. Glutathione in combination with trehalose has supplementary beneficial effects on cryopreserved red deer (cervus elaphus) sperm. Am J Reprod Immunol 2016; 77. [PMID: 27885744 DOI: 10.1111/aji.12610] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 11/01/2016] [Indexed: 11/28/2022] Open
Affiliation(s)
- Yan Wang
- Department of Laboratory; The Second People's Hospital of Lianyungang; Haizhou China
| | - Shude Dong
- Department of Radiotherapy; The Second People's Hospital of Lianyungang; Haizhou China
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Toker MB, Alcay S, Gokce E, Ustuner B. Cryopreservation of ram semen with antioxidant supplemented soybean lecithin-based extenders and impacts on incubation resilience. Cryobiology 2016; 72:205-9. [PMID: 27157891 DOI: 10.1016/j.cryobiol.2016.05.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/22/2016] [Accepted: 05/02/2016] [Indexed: 11/20/2022]
Abstract
The scope of this study was investigation the affects of various antioxidants on 1% soybean lecithin-based semen extenders for ram semen cryopreservation. Ejaculates, collected via electrically stimulated ejaculation, that have a thick consistency, rapid wave motion (3-5 on a 0-5 scale) and >75% initial motility were pooled. The pooled samples were split into four equal aliquots as 5 mM Methionine, 5 mM Cysteamine, 1 mM Cysteine and a sample of antioxidant-free control group. Each sample group was diluted to a ratio of 1/5 (semen/extender, v/v) as final concentration and two step dilution method was used for cryopreservation. Extender groups were assessed for sperm motility, plasma membrane functional integrity using hypoosmotic swelling test (HOST), damaged acrosome using FITC-Pisum sativum agglutinin (PSA-FITC) and DNA integrity using terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL). Semen samples also incubated for 6 h in humidified air with 5% CO2 at 39 °C to evaluate post-thaw incubation resilience of semen characteristics. The results showed that freezing and thawing procedures had negative effects on motility (P < 0.05), plasma membrane integrity (P < 0.05) and acrosomal integrity (P < 0.05). After 6 h of incubation time, the Cysteine supplemented extender group yielded significantly higher results than other extender groups in terms of spermatological parameters. Furthermore MDA levels in the antioxidant groups were lower than control group (P < 0.05). Nevertheless, there were no significant differences among antioxidant groups.
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Affiliation(s)
- M Berk Toker
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle, Bursa, 16059, Turkey.
| | - Selim Alcay
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle, Bursa, 16059, Turkey
| | - Elif Gokce
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle, Bursa, 16059, Turkey
| | - Burcu Ustuner
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Uludag University, Gorukle, Bursa, 16059, Turkey
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Ustuner B, Alcay S, Toker MB, Nur Z, Gokce E, Sonat FA, Gul Z, Duman M, Ceniz C, Uslu A, Sagirkaya H, Soylu MK. Effect of rainbow trout (Oncorhynchus mykiss) seminal plasma on the post-thaw quality of ram semen cryopreserved in a soybean lecithin-based or egg yolk-based extender. Anim Reprod Sci 2016; 164:97-104. [DOI: 10.1016/j.anireprosci.2015.11.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 10/22/2015] [Accepted: 11/15/2015] [Indexed: 10/22/2022]
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Mata-Campuzano M, Álvarez-Rodríguez M, Álvarez M, Tamayo-Canul J, Anel L, de Paz P, Martínez-Pastor F. Post-thawing quality and incubation resilience of cryopreserved ram spermatozoa are affected by antioxidant supplementation and choice of extender. Theriogenology 2015; 83:520-8. [DOI: 10.1016/j.theriogenology.2014.10.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 10/09/2014] [Accepted: 10/11/2014] [Indexed: 10/24/2022]
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Emamverdi M, Zhandi M, Shahneh AZ, Sharafi M, Akhlaghi A, Motlagh MK, Dadkhah F, Davachi ND. Flow cytometric and microscopic evaluation of post-thawed ram semen cryopreserved in chemically defined home-made or commercial extenders. ANIMAL PRODUCTION SCIENCE 2015. [DOI: 10.1071/an13215] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The present study was designed to determine the effect of three different extenders on ram sperm quality during a freeze–thawing procedure using flow cytometric and microscopic evaluations. Several in vitro qualitative analyses of post-thawed sperm parameters including motility and velocity parameters, plasma membrane functionality, total abnormality, capacitation status, acrosome integrity, mitochondrial activity and apoptosis features were considered. In the breeding season, seven ejaculates from each Zandi ram were collected routinely twice a week. Following semen collection, samples were pooled and equally divided into three aliquots. Each aliquot was diluted and frozen with one of the following extenders: (1) Tris-based extender containing 1.5% (w/v) soybean lecithin (TSL), as a chemically defined extender, (2) Bioxcell, a commercial soybean lecithin-based extender, and (3) Tris-based extender containing 20% (v/v) egg yolk (TEY). The results of the present study indicated no differences in total [TSL (55.8 ± 2.02%) vs TEY (50.2 ± 2.02%; P < 0.05)] and progressive motility of spermatozoa [TSL (26.2 ± 1.36%) vs Bioxcell (22.4 ± 1.36%; P < 0.05)]. Semen freezing by means of TSL resulted in a higher percentage of live spermatozoa (39.42 ± 1.81%) compared with TEY (29.17 ± 1.81%; P < 0.05), and a higher percentage of functional plasma membrane (50.8 ± 192%) compared with TEY (44 ± 1.92%) and Bioxcell (38.8 ± 1.92%; P < 0.05). The effect of extenders on sperm capacitation status showed that the percentage of post-thawed capacitated spermatozoa was higher in TEY (61.9 ± 1.48%) compared with that in TSL (56.6 ± 1.48%; P < 0.05). The evaluation of post-thawed spermatozoa indicated that the percentage of live spermatozoa with active mitochondria was higher in TSL (53.05 ± 2.31%) compared with Bioxcell (45.92 ± 2.31; P < 0.05) and the percentage of intact acrosome spermatozoa was higher in TSL (84.55 ± 2.51%) compared with TEY (74.91 ± 2.51%; P < 0.05). The use of TSL and Bioxcell extenders reduced the percentage of apoptotic spermatozoa (40.82 ± 2.07% and 42.22 ± 2.07%, respectively), compared with TEY (51.34 ± 2.07%; P < 0.05). Post-thawing dead spermatozoa were increased when semen was frozen by Bioxcell (25.69 ± 1.28%). The results of this study showed that TSL extender may provide stabile milieu and conditions for ram sperm cryopreservation compared with Bioxcell and TEY extenders. Whether TSL extender can improve the artificial insemination results remains, however, an open question.
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Soybean lecithin-based extender preserves spermatozoa membrane integrity and fertilizing potential during goat semen cryopreservation. Theriogenology 2014; 83:1064-74. [PMID: 25595356 DOI: 10.1016/j.theriogenology.2014.12.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 12/03/2014] [Accepted: 12/06/2014] [Indexed: 02/08/2023]
Abstract
Soybean lecithin may represent a suitable alternative to egg yolk for semen cryopreservation in livestock species. However, additional studies are needed to elucidate its effects on spermatozoa functional properties. Semen collected from five Sarda bucks was cryopreserved in Tris-based extender and glycerol (4% v:v) with different supplementations. In a preliminary experiment, different soybean lecithin concentrations were tested (1%-6% wt/vol) and results in terms of viability, percentages of progressive motile and rapid spermatozoa, and DNA integrity after thawing showed that the most effective concentration was 1%. In the second experiment, semen was frozen in a Tris-based extender with no supplementation (EXT), with 1% lecithin (EXT LC), and 20% egg yolk (EXT EY). The effectiveness of these extenders was also compared with a commercial extender. The EXT EY led to the highest viability and motility parameters after freezing and thawing (P < 0.0001). No significant differences were observed in intracellular ATP concentrations. Additional molecular features revealed that sperm functionality was affected in EXT EY, as demonstrated by lower DNA and acrosome integrity (P < 0.05), and higher lipid peroxidation compared with spermatozoa cryopreserved in EXT LC (P < 0.0001). Results obtained in the heterologous in vitro fertilization test showed that EXT LC better preserved spermatozoa functionality, as demonstrated by the higher fertilization rates compared with the other media (66.2 ± 4.5% for EXT LC vs. 32.7 ± 4.5%, 38.7 ± 4.5%, 39.6 ± 5.2% for EXT, EXT EY, and commercial extender; P < 0.01). The present study demonstrated that lecithin can be considered as a suitable alternative to egg yolk in goat semen cryopreservation, because it ensures higher fertilization rates and a better protection from membrane damage by cold shock.
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30
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Abstract
Lipid is an important constituent of cell membrane. Membrane lipid composition of spermatozoa has been correlated to different function. Many researchers have related membrane lipid with survival success after cryopreservation or cold shock. Sperm maturation and acrosome reactions are natural phenomenon, but cryopreservation or cold shock is not. Therefore, sperm cells are not programmed for such change and undergo stress. So the change in membrane lipid composition due to cold shock or cryopreservation may be looked upon as response of spermatozoa to a certain stressed condition. A significant body of research worked on the relationship between membrane lipid and fatty acid composition and ability of cell to tolerate adverse change in temperature. However, as the approach of different research groups was different, it is very difficult to compare the changes. Studies have been done with different species, ejaculated/seminal or epididymal sperm. Lipid analyses have been done with whole cell membrane isolated by different methods. Fatty acids estimated were from whole cell, plasma membrane, head membrane, or phospholipids. The cryopreservation condition, media composition, and diluents/cryoprotectants were also different. At this onset a comprehensive review is needed to cover changes of sperm membrane lipid composition of different species under different cryopreservation conditions.
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Salmani H, Towhidi A, Zhandi M, Bahreini M, Sharafi M. In vitro assessment of soybean lecithin and egg yolk based diluents for cryopreservation of goat semen. Cryobiology 2014; 68:276-80. [PMID: 24548541 DOI: 10.1016/j.cryobiol.2014.02.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 02/11/2014] [Accepted: 02/11/2014] [Indexed: 10/25/2022]
Abstract
Soybean lecithin is a suitable plant-based cryoprotectant for freezing ruminant sperm. Optimum level of lecithin was not clear for goat semen cryopreservation. The objective of this study was to investigate the effects of different levels of soybean lecithin in semen extender on post-thaw sperm quality including CASA-motion parameters, viability, plasma membrane integrity and lipid peroxidation. Semen samples were collected from 4 Mahabadi bucks using an artificial vagina. Different concentrations of soy lecithin (SL, 0.5%, 1%, 1.5%, 2% and 2.5% w/v) were compared to 15% (v/v) egg yolk-based extender (TR-EY). No significant difference was observed for sperm progressive motility, viability or plasma membrane integrity in 1.5% SL media (33.8%, 66%, and 62.7%, respectively) and TR-EY medium (35.4%, 67.2%, and 64.9%, respectively). Sperm motion characteristics (VAP, VSL, VCL, ALH and LIN) and rapid spermatozoa were improved with extender containing 1% and 1.5% SL, compared to TR-EY extender. Furthermore, egg yolk produced significantly higher malondialdehyde (4.02±0.21) than other groups. Results suggest that the optimal lecithin concentration in the semen extender was 1.5% and also soy lecithin can substitute for egg yolk during cryopreservation for caprine sperm.
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Affiliation(s)
- Hossein Salmani
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran; Department of Physiology, School of Medicine, Mashhad University of Medical Sciences (MUMS), Mashhad, Iran
| | - Armin Towhidi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
| | - Mahdi Zhandi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | | | - Mohsen Sharafi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran; Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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32
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Emamverdi M, Zhandi M, Zare Shahneh A, Sharafi M, Akbari-Sharif A. Optimization of ram semen cryopreservation using a chemically defined soybean lecithin-based extender. Reprod Domest Anim 2013; 48:899-904. [PMID: 23701189 DOI: 10.1111/rda.12183] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Accepted: 04/16/2013] [Indexed: 11/28/2022]
Abstract
The purpose of the present study was to investigate the effects of a chemically defined soybean lecithin-based semen extender as a substitute for egg yolk-based extenders in ram semen cryopreservation. In this study, 28 ejaculates were collected from four Zandi rams in the breeding season and then pooled together. The pooled semen was divided into six equal aliquots and diluted with six different extenders: (i) Tris-based extender (TE) containing 0.5% (w/v) soybean lecithin (SL0.5), (ii) TE containing 1% (w/v) soybean lecithin (SL1), (iii) TE containing 1.5% (w/v) soybean lecithin (SL1.5), (iv) TE containing 2% (w/v) soybean lecithin (SL2), (v) TE containing 2.5% (w/v) soybean lecithin (SL2.5) and (vi) TE containing 20% (v/v) egg yolk (EYT). After thawing, sperm motility and motion parameters, plasma membrane and acrosome integrity, apoptosis status and mitochondrial activity were evaluated. The results shown that total and progressive motility (54.43 ± 1.33% and 25.43 ± 0.96%, respectively) were significantly higher in SL1.5 when compared to other semen extenders. Sperm motion parameters (VAP, VSL, VCL, ALH and STR) were significantly higher in SL1.5 compared to other extender, with the exception of SL1 extender. Plasma membrane integrity (48.86 ± 1.38%) was significantly higher in SL1.5 when compared to other semen extenders. Also, percentage of spermatozoa with intact acrosome in SL1.5 (85.35 ± 2.19%) extender was significantly higher than that in SL0.5, SL2.5 and EYT extenders. The results showed that the proportion of live post-thawed sperm was significantly increased in SL1.5 extender compared to SL0.5, SL2 and EYT extenders. In addition, SL1, SL1.5 and SL2.5 extenders resulted in significantly lower percentage of early-apoptotic sperm than that in EYT extender. There were no significant differences in different semen extenders for percentage of post-thawed necrotic and late-apoptotic spermatozoa. Also, the results indicated that there are slight differences for percentage of live spermatozoa with active mitochondria between extenders. In conclusion, SL1.5 extender was better than other extenders in most in vitro evaluated sperm parameters.
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Affiliation(s)
- M Emamverdi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
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