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Negus C, Pinyopummin A, Mahasawangkul S, Hobbs R, Bathgate R. Asian elephant ( Elephas maximus) seminal plasma: establishing the proteome and effect on spermatozoa when added to cryomedium. Reprod Fertil Dev 2024; 36:RD23217. [PMID: 39052858 DOI: 10.1071/rd23217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 06/27/2024] [Indexed: 07/27/2024] Open
Abstract
Context The removal or supplementation of ejaculates with seminal plasma (SP) can affect cryotolerance and post-thaw survival of spermatozoa in many species. In the Asian elephant (Elephas maximus ), elucidation of the SP proteome and investigation of how it affects spermatozoa may enable improvement of cryopreservation protocols. Aims Herein, we characterise the Asian elephant SP proteome and investigate the impacts of SP on sperm cryotolerance in the presence of conspecific or heterospecific SP. Methods Proteomic analysis of Asian elephant SP was performed using mass spectrometry on nine samples from three individuals. In a separate study, SP was removed from six ejaculates and spermatozoa were resuspended in Tris extender supplemented with: no seminal plasma (NOSP), conspecific SP from ejaculates exhibiting 'good' (GSP, >60%) or mixed sperm total motility (MSP), or horse SP (HSP). Samples underwent cryopreservation, and sperm parameters were compared prior to cryopreservation and after thawing (0 and 2h). Key results Mass spectrometry identified 155 proteins from an array of families. Significant differences were observed in post-thaw sperm quality between SP treatments: high concentrations of MSP (25%, v/v) displayed greater average path and straight-line velocity immediately after thawing (P P P Conclusions and implications These preliminary findings suggest the potential of SP to enhance the cryosurvival of Asian elephant spermatozoa, with HSP showing particularly promising results compared to conspecific SP (GSP). Further research into the specific effects of Asian elephant SP proteins is warranted.
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Affiliation(s)
- Cameron Negus
- Faculty of Science, Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
| | - Anuchai Pinyopummin
- Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom, Thailand
| | | | - Rebecca Hobbs
- Taronga Institute of Science and Learning, Dubbo, NSW, Australia
| | - Roslyn Bathgate
- Faculty of Science, Sydney School of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
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Ranéa C, Pariz JR, Drevet JR, Hallak J. Sperm motility in asthenozoospermic semen samples can be improved by incubation in a continuous single culture medium (CSCM®). Syst Biol Reprod Med 2022; 68:25-35. [PMID: 35100915 DOI: 10.1080/19396368.2021.2004623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Standard protocols for clinical in vitro fertilization (IVF) laboratories recommend incubating semen at 37°C in 5% CO2 without strictly specifying which medium should be used or for how long. This study aimed to test the most common different incubation media used in Latin American andrology and micromanipulation laboratories and verify which, if any, is the most appropriate medium to improve asthenozoospermic semen samples' motility in the infertile male population. Ejaculates (136) collected from asthenozoospermic men were divided into two cohorts with similar characteristics (cohort 1; n = 28 and cohort 2; n = 108). Cohort 1 was used to evaluate the optimal incubation time with regard to unprepared asthenozoospermic sample sperm motility. After defining an optimal incubation period of 2 h, cohort 2 was used to evaluate which of the four media commonly used in IVF clinics (continuous single culture medium = CSCM®; SpermRinse medium = SR®; in vitro fertilization medium = G-IVF® and human tubal fluid medium = HTF®) was preferred for semen samples from asthenozoospermic patients. Overall, it was determined that a 2-h incubation in CSCM® medium led to the highest asthenozoospermic sperm motility. Thus, this simple, cost-effective, easily reproducible protocol could prove extremely useful for andrology laboratories working with IVF clinics dealing with asthenozoospermic semen specimens. This is particularly relevant since the incidence of the latter is on the rise as semen quality decreases around the globe.Abbreviations: ANOVA: Analysis of variance; ARTs: Assisted reproductive techniques; BWW: Biggers, Whitten, and Whittingham; CO2: Carbon dioxide; CPM: counted per minute; CSCM: Continuous Single Culture Medium; DAB: 3.3'- diaminobenzidine; DFI: DNA Fragmentation Index; DMSO: Dimethyl sulfoxide; G-IVF: In Vitro Fertilization Medium; GSH: Glutathione; GPx: glutathione peroxidase; HDS: High DNA Stainability; HSA: Human Serum Albumin; HTF: Human Tubal Fluid; HYP: Hyperactivity; ICSI: Intracytoplasmic sperm injection; IUI: Intrauterine insemination; IVF: in vitro fertilization; LIN: Linearity; ROS: Reactive Oxygen Species-level; SC: Sperm concentration; SCA: Sperm Computer Analysis; SCSA: Sperm Chromatin Structural Assay; SR: SpermRinse medium; SSS: Synthetic Serum Substitute; STR: Straightness; SOD: superoxide dismutase; TNE: Tris-Borate-EDTA; TSC: Total sperm count; VAP: Mean velocity; VCL: Curvilinear velocity; VSL: Linear velocity; WHO: World Health Organization; WOB: Wobble; spz: spermatozoa; AO: antioxidant.
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Affiliation(s)
- Caroline Ranéa
- Androscience, Science and Innovation Center in Andrology and High-Complex Clinical and Andrology Laboratory, São Paulo, Brazil.,Division of Urology, Department of Surgery, Hospital Das Clinicas, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Juliana Risso Pariz
- Androscience, Science and Innovation Center in Andrology and High-Complex Clinical and Andrology Laboratory, São Paulo, Brazil.,Division of Urology, Department of Surgery, Hospital Das Clinicas, University of Sao Paulo Medical School, São Paulo, Brazil.,Department of Pathology, Reproductive Toxicology Unit, University of São Paulo Medical School, São Paulo, Brazil.,Institute for Advanced Studies, University of Sao Paulo, Sao Paulo, Brazil
| | - Joël R Drevet
- Université Clermont Auvergne, GReD Institute, Faculty of Medicine, Clermont-Ferrand, France
| | - Jorge Hallak
- Androscience, Science and Innovation Center in Andrology and High-Complex Clinical and Andrology Laboratory, São Paulo, Brazil.,Division of Urology, Department of Surgery, Hospital Das Clinicas, University of Sao Paulo Medical School, São Paulo, Brazil.,Department of Pathology, Reproductive Toxicology Unit, University of São Paulo Medical School, São Paulo, Brazil.,Institute for Advanced Studies, University of Sao Paulo, Sao Paulo, Brazil
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Luongo C, González-Brusi L, Cots-Rodríguez P, Izquierdo-Rico MJ, Avilés M, García-Vázquez FA. Sperm Proteome after Interaction with Reproductive Fluids in Porcine: From the Ejaculation to the Fertilization Site. Int J Mol Sci 2020; 21:ijms21176060. [PMID: 32842715 PMCID: PMC7570189 DOI: 10.3390/ijms21176060] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/14/2020] [Accepted: 08/18/2020] [Indexed: 02/06/2023] Open
Abstract
Ejaculated sperm are exposed to different environments before encountering the oocyte. However, how the sperm proteome changes during this transit remains unsolved. This study aimed to identify proteomic changes in boar sperm after incubation with male (seminal plasma, SP) and/or female (uterine fluid, UF; and oviductal fluid, OF) reproductive fluids. The following experimental groups were analyzed: (1) SP: sperm + 20% SP; (2) UF: sperm + 20% UF; (3) OF: sperm + 20% OF; (4) SP + UF: sperm + 20% SP + 20% UF; and (5) SP+OF: sperm + 20% SP + 20% OF. The proteome analysis, performed by HPLC-MS/MS, allowed the identification of 265 proteins. A total of 69 proteins were detected in the UF, SP, and SP + UF groups, and 102 proteins in the OF, SP, and SP + OF groups. Our results showed a higher number of proteins when sperm were incubated with only one fluid than when they were co-incubated with two fluids. Additionally, the number of sperm-interacting proteins from the UF group was lower than the OF group. In conclusion, the interaction of sperm with reproductive fluids alters its proteome. The description of sperm-interacting proteins in porcine species after co-incubation with male and/or female reproductive fluids may be useful to understand sperm transport, selection, capacitation, or fertilization phenomena.
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Affiliation(s)
- Chiara Luongo
- Department of Physiology, Veterinary School, International Excellence Campus for Higher Education and Research (Campus Mare Nostrum), University of Murcia, 30100 Murcia, Spain;
| | - Leopoldo González-Brusi
- Department of Cell Biology and Histology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain; (L.G.-B.); (P.C.-R.); (M.J.I.-R.)
| | - Paula Cots-Rodríguez
- Department of Cell Biology and Histology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain; (L.G.-B.); (P.C.-R.); (M.J.I.-R.)
| | - Mª José Izquierdo-Rico
- Department of Cell Biology and Histology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain; (L.G.-B.); (P.C.-R.); (M.J.I.-R.)
- Institute for Biomedical Research of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
| | - Manuel Avilés
- Department of Cell Biology and Histology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain; (L.G.-B.); (P.C.-R.); (M.J.I.-R.)
- Institute for Biomedical Research of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
- Correspondence: (M.A.); (F.A.G.-V.)
| | - Francisco Alberto García-Vázquez
- Department of Physiology, Veterinary School, International Excellence Campus for Higher Education and Research (Campus Mare Nostrum), University of Murcia, 30100 Murcia, Spain;
- Institute for Biomedical Research of Murcia, IMIB-Arrixaca, 30100 Murcia, Spain
- Correspondence: (M.A.); (F.A.G.-V.)
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The Potential Role of Seminal Plasma in the Fertilization Outcomes. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5397804. [PMID: 31531356 PMCID: PMC6720062 DOI: 10.1155/2019/5397804] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 07/21/2019] [Indexed: 01/26/2023]
Abstract
For human infertility both male and female factors may be equally important. Searching for molecular biomarkers of male infertility, neglected for decades, and the attempts to explain regulatory mechanisms of fertilization become thus extremely important. Apart from examination of the structure and function of male gametes, also the possible importance of seminal plasma components should be considered. In this article we discuss data that indicate for the substantial significance of active seminal plasma components for conception and achievement of healthy pregnancy. Seminal plasma impact on the storage and cryopreservation of human and animal sperm and regulatory role of glycodelin on human sperm capacitation as well as hypothesized course of female immune response to allogenic sperm and conceptus has been discussed. The possible involvement of carbohydrates in molecular mechanism of fetoembryonic defense has been also mentioned.
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Sublethal sperm freezing damage: Manifestations and solutions. Theriogenology 2018; 118:172-181. [DOI: 10.1016/j.theriogenology.2018.06.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/28/2018] [Accepted: 06/10/2018] [Indexed: 01/30/2023]
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Tvrdá E, Arroyo F, Gosálvez J. Dynamic assessment of human sperm DNA damage I: the effect of seminal plasma-sperm co-incubation after ejaculation. Int Urol Nephrol 2018; 50:1381-1388. [PMID: 29926367 DOI: 10.1007/s11255-018-1915-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 06/13/2018] [Indexed: 11/28/2022]
Abstract
AIM The purpose of the study was to evaluate the impact of seminal plasma in human ejaculates on the sperm DNA quality and DNA longevity. METHODS Semen samples for this study were obtained from 20 donors with a normal spermiogram. Following centrifugation, the sperm pellet was resuspended either in the seminal plasma proceeding from its respective donor, or in an equal amount of PBS, adjusting the concentration to 50 × 106/ml. Each set of samples was incubated at 37 °C for 24 h and the sperm DNA damage was assessed using the chromatin-dispersion test following 0, 2, 6, and 24 h of incubation. RESULTS Sperm DNA fragmentation (SDF) did not differ between the two experimental conditions at T0; however, Kaplan-Meier estimates to test for survival showed an statistical significant increase of SDF in the seminal plasma group when compared to the PBS group following all timeframes (p 0.000). With respect to sperm DNA longevity, the most dramatic loss of sperm DNA quality occurred during the first 2 h of incubation, with the rate of SDF (rSDF) in the seminal plasma being 2.1 more intense than in PBS. Interestingly, the rSDF was found to vary significantly between individuals, which was confirmed with significant correlations in all rSDF timeframes (rSDF T0-2, p 0.049; rSDF T2-6, p 0.000; rSDF T6-24: p 0.000). CONCLUSIONS Co-incubation of semen samples in seminal plasma after ejaculation increases iatrogenic sperm damage. This effect is statistically significant after 2 h of co-incubation. Subsequently, for ART purposes seminal plasma must be quickly removed after ejaculation-liquefaction, to avoid a higher susceptibility of sperm DNA towards fragmentation.
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Affiliation(s)
- Eva Tvrdá
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, Nitra, 94976, Slovakia.
| | - Francisca Arroyo
- Unit of Genetics, Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain
| | - Jaime Gosálvez
- Unit of Genetics, Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain
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Rives N, Sibert L, Perdrix A, Hennebicq S, Julliard JC. [Assisted reproductive technologies with sperm donation]. Prog Urol 2012; 22:561-7. [PMID: 22920333 DOI: 10.1016/j.purol.2012.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 03/30/2012] [Accepted: 04/18/2012] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The purpose of this review is to relate to the operating rules of CECOS in France and the legal, medical and ethical issues raised by sperm donation. MATERIAL AND METHODS Review of articles and consensus conferences on this subject published in Medline (PubMed) selected from 1973 and 2011 according to their relevance and Acts recorded on official legislative French websites. RESULTS The operating rules of CECOS were established by the Act of July 29, 2004, revised 6 August 2004 and July 7, 2011. Of the 21,759 children born of ART in France in 2009, 5.1% are from a sperm donation. From 1973 to 2006, 44,045 children are born after a sperm donation. Between 1973 and 2006, 16,971 donors are presented in the CECOS and only 10,347 donors have completely made their donation process. The main indication for use of donor sperm (75% of applications) is represented by men of infertile couples with nonobstructive azoospermia, the second indication is infertile men with oligospermia. In azoospermia, the application is usually performed after failure of testicular or epididymal surgical specimen. In oligozoospermia, claims made most often after several failures of intraconjugal ART. CONCLUSION Many questions are still present around the conception of children by sperm donation. The legitimacy of maintaining anonymity in the gift remains widely debated.
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Affiliation(s)
- N Rives
- Laboratoire de biologie de la reproduction-CECOS, CHU-hôpitaux de Rouen, université de Rouen, CHU Charles-Nicolle, 1, rue de Germont, 76031 Rouen cedex, France
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YANG S, PING S, JI S, LU Y, NIU Y, WANG H, JI W, SI W. The Positive Effects of Seminal Plasma During the Freezing Process on Cryosurvival of Sperm with Poor Freezability in the Rhesus Macaque (Macaca mulatta). J Reprod Dev 2011; 57:737-43. [DOI: 10.1262/jrd.11-056n] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Yamashiro H, Kumamoto K, Wang H, Yamashita Y, Terada T. Effect of Semen Collection in Extender Solution on the Characteristics of Goat Spermatozoa. J Reprod Dev 2006; 52:397-406. [PMID: 16543697 DOI: 10.1262/jrd.17104] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The objective of this experiment was to investigate whether the motility parameters and acrosome integrity of goat ejaculated spermatozoa are affected by collecting semen into tubes containing an extender, and thereby determine the significance of reducing contact between seminal plasma and the sperm membrane at ejaculation. Semen were collected from three goats into tubes containing 0, 1 or 10 ml extender, or collected into tubes containing 10 ml extender supplemented with 0.1, 1 or 5% BSA. Sperm motion parameters were evaluated immediately after collection, after washing, and during a 3-h thermal resistance test. Acrosome integrity was assessed using FITC-PNA staining. Semen collection into tubes containing 10 ml extender produced higher sperm motility, progressive motility, and acrosome integrity than that using a smaller volume of extender. Furthermore, collection into 5% BSA-containing extender exhibited higher sperm characteristics and maintained high sperm motility and progressive motility throughout incubation. In conclusion, semen collection into tubes with a large volume of extender, especially extender containing higher concentrations of BSA, improved the quality of ejaculated spermatozoa, strongly suggesting that the in vitro functional characteristics of the spermatozoa were abruptly modified by flash sperm contact with accessory sex gland fluid at ejaculation.
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Affiliation(s)
- Hideaki Yamashiro
- Laboratory of Animal Reproduction, Graduate School of Biosphere Sciences, Hiroshima University, Japan
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Moore AI, Squires EL, Graham JK. Effect of seminal plasma on the cryopreservation of equine spermatozoa. Theriogenology 2005; 63:2372-81. [PMID: 15910920 DOI: 10.1016/j.theriogenology.2004.05.032] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2003] [Accepted: 05/21/2004] [Indexed: 11/15/2022]
Abstract
Seminal plasma is generally removed from equine spermatozoa prior to cryopreservation. Two experiments were designed to determine if adding seminal plasma back to spermatozoa, prior to cryopreservation, would benefit the spermatozoa. Experiment 1 determined if different concentrations of seminal plasma affected post-thaw sperm motility, viability and acrosomal integrity of frozen/thawed stallion spermatozoa. Semen was washed through 15% Percoll to remove seminal plasma and spermatozoa resuspended to 350 x 10(6)sperm/mL in a clear Hepes buffered diluent containing either 0, 5, 10, 20, 40 or 80% seminal plasma for 15 min, prior to being diluted to a final concentration of 50 x 10(6)sperm/mL in a Lactose-EDTA freezing diluent and cryopreserved. Sperm motility was analyzed at 10 and 90 min after thawing, while sperm viability and acrosomal integrity were analyzed 20 min after thawing. Seminal plasma did not affect sperm motility, viability or acrosomal integrity (P>0.05). Experiment 2 tested the main affects of seminal plasma level (5 or 20%), incubation temperature (5 or 20 degrees C) and incubation time (2, 4 or 6 h) prior to cryopreservation. In this experiment, spermatozoa were incubated with 5 or 20% seminal plasma for up to 6h at either 5 or 20 degrees C prior to cryopreservation in a skim milk, egg yolk freezing extender. Samples cooled immediately to 5 degrees C, prior to freezing had higher percentages of progressively motile spermatozoa than treatments incubated at 20 degrees C (31 versus 25%, respectively; P<0.05), when analyzed 10 min after thawing. At 90 min post-thaw, total motility was higher for samples incubated at 5 degrees C (42%) compared to 20 degrees C (35%; P<0.05). In addition, samples containing 5% seminal plasma had higher percentages of total and progressively motile spermatozoa (45 and 15%) than samples exposed to 20% seminal plasma (33 and 9%; P<0.05). In conclusion, although the short-term exposure of sperm to seminal plasma had no significant effect on the motility of cryopreserved equine spermatozoa, prolonged exposure to seminal plasma, prior to cryopreservation, was deleterious.
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Affiliation(s)
- A I Moore
- Animal Reproduction and Biotechnology Laboratory, Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80521, USA
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Browne RK, Mahony M, Clulow J. A comparison of sucrose, saline, and saline with egg-yolk diluents on the cryopreservation of cane toad (Bufo marinus) sperm. Cryobiology 2002; 44:251-7. [PMID: 12237090 DOI: 10.1016/s0011-2240(02)00031-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Previous studies on cane toad (Bufo marinus; Bufonidae; Anura) sperm cryopreservation were extended to compare the effects of cryopreservation in established sucrose (non-ionic) diluents with cryopreservation in ionic diluents containing amphibian Ringer solutions (with and without egg-yolk). In addition, methanol was tested as a cryoprotectant for B. marinus sperm for the first time. Twenty-seven cryoprotective solutions were trialled, with each containing one of the three diluents [10% (w/v) sucrose, simplified amphibian Ringer (SAR) or SAR/egg-yolk], with one of the three cryoprotectants (Me(2)SO, glycerol, or methanol) at one of the three concentrations (10%, 15%, or 20% v/v). Sperm were collected by maceration of testes into cryoprotective solutions with post-thaw recovery assessed as the percentage of motile sperm and the degree (vigour) of motility. Percentage motility was the most sensitive measure of post-thaw recovery. The recovery of motility was lowest in Ringer (SAR) diluents and highest in sucrose diluents, with improved motility in SAR diluents when egg-yolk was added. Methanol was the poorest cryoprotectant and Me(2)SO the most effective. Methanol at high concentrations was shown to support recovery in sucrose diluent but not in SAR, although its effectiveness in SAR was improved by egg-yolk. Overall, the efficacy of diluents in supporting a high percentage of sperm recovery was in declining order: sucrose>SAR/egg-yolk>SAR diluents, and with cryoprotectants: Me(2)SO>glycerol>methanol. In conclusion, SAR offers less potential as a diluent than sucrose, presumably due to the presence of inorganic ions.
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Affiliation(s)
- R K Browne
- Department of Biological Sciences, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
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