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Gillis JD, Holt WV, Penfold LM, Woad KJ, Graham JK, Watts JA, Gardner DS, Yon L. Cryo-scanning electron microscopy demonstrates that ice morphology is not associated with the post-thaw survival of domestic boar (Sus domesticus) spermatozoa: A comparison of directional and conventional freezing methods. Cryobiology 2022; 108:10-18. [PMID: 36084733 DOI: 10.1016/j.cryobiol.2022.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 08/17/2022] [Accepted: 08/31/2022] [Indexed: 11/03/2022]
Abstract
Directional freezing (in 2 or 10 ml hollow glass tubes) has been reported to improve post-thaw sperm survival parameters compared to conventional methods (in 0.5 ml straws). However, the biophysical properties that increase post-thaw survival are poorly understood. Therefore, the aim for the current study was to investigate the effect of ice morphology on the post-thaw survival of domestic boar spermatozoa directionally and conventionally cryopreserved in 0.5 ml straws. Ice morphology was quantitatively analyzed using a combination of cryo-scanning electron microscopy and Fiji Shape Descriptors. Multivariate analysis found a significant, non-linear effect (p < 0.05) of interface velocity on ice morphology, with an increase in both ice-lake size, as indicated by area and in aspect ratio, at an interface velocity of 0.2 mm/s. By contrast, post-thaw sperm survival (defined as spermatozoa with both intact plasma membranes and acrosomes) was biphasic, with peaks of survival at interface velocities of 0.2 mm/s (54.2 ± 1.9%), and 1.0 or 1.5 mm/s (56.5 ± 1.5%, 56.7 ± 1.7% respectively), and lowest survival at 0.5 (52.1 ± 1.6%) and 3.0 mm/s (51.4 ± 1.9%). Despite numerical differences in Shape Descriptors, there was no difference (p > 0.05) in the post-thaw survival between conventionally and directionally cryopreserved samples at optimal interface velocities of 1.0 or 1.5 mm/s. These findings suggest that: 1) ice morphology has little impact on post-thaw survival of boar spermatozoa, and 2) directional freezing in 0.5 ml straws (rather than 2 or 10 ml hollow glass tubes) may attenuate benefits of directional freezing.
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Affiliation(s)
- James D Gillis
- South-East Zoo Alliance for Reproduction & Conservation, 581705 White Oak Road, Yulee, FL, 32097, USA; School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Loughborough, LE12 5RD, UK.
| | - William V Holt
- Academic Department of Reproductive and Developmental Medicine, University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield, S10 2SF, UK
| | - Linda M Penfold
- South-East Zoo Alliance for Reproduction & Conservation, 581705 White Oak Road, Yulee, FL, 32097, USA
| | - Kathryn J Woad
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Loughborough, LE12 5RD, UK
| | - James K Graham
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO, 80521, USA
| | - Julie A Watts
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - David S Gardner
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Loughborough, LE12 5RD, UK
| | - Lisa Yon
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Loughborough, LE12 5RD, UK
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2
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Mohammed KM, Darwish GM, Rawash ZM, Taha AM. Cryopreservation of rabbit semen: impacts of permeable and non-permeable mixture of cryoprotectant, male group individuality, freezing rate, semen package size and antioxidant bovine serum albumin on rabbit semen freezability. WORLD RABBIT SCIENCE 2022. [DOI: 10.4995/wrs.2022.17303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
In the present study, three experiments were designed to identify the most appropriate technique for freezing rabbit semen. Experiment 1 aimed to determine the optimal levels of dimethyl sulfoxide (DMSO) contents in freezing medium and their effects on individual bucks. Semen ejaculates for each buck (n=15 bucks) were mixed and split into three portions for extension with a freezing medium containing varying concentrations of DMSO (0.75, 1.0, and 1.4 M). Diluted semen samples were packaged in 0.25 mL straws and suspended above liquid nitrogen (LN) for 10 min, then dipped in LN. A few days after freezing, post-thaw semen evaluation was assessed, and according to the results, six bucks and an extender containing 0.75 M of DMSO were used for experiments 2 and 3. In experiment 2, the pooled semen from 6 bucks was divided into two portions for packaging in two straw sizes (0.25 and 0.50 mL). Each straw size was divided into five groups and suspended at different heights above LN (2, 4, 6, 8, and 10 cm) for 10 minutes before being preserved in LN. In experiment 3, the pooled semen was divided into four portions for dilution with freezing medium containing different concentrations of bovine serum albumin (BSA; 0, 2.5, 5.0, and 7.5 mg/mL). Semen samples were packaged in a 0.50 mL straw and suspended 10 min, 4 cm above LN for freezing. Pre-freezing and post-thawing, semen samples were evaluated for semen quality. Results showed that the extender containing 0.75 M DMSO had higher significant values for post-thaw sperm motility, longevity, acrosome integrity and sperm plasma membrane permeability. Bucks’ individuality had significant effects on post-thaw motility, acrosome and sperm plasma membrane integrity. A significant interaction was recorded between DMSO concentrations and bucks’ individuality on sperm longevity. Semen package sizes had no significant effects on the evaluated parameters. Semen was frozen at 2 and 4 cm above LN had significantly better post-thaw quality. BSA at concentrations 5 and 7.5 mg/mL improved recovery rates of acrosome integrity and sperm membrane permeability. DMSO 0.75 M and freezing 4 cm above LN seem to be more adequate for rabbit semen cryopreservation. The appropriate level of DMSO differs between bucks, as the post-thaw sperm longevity is affected. BSA enhanced acrosome and sperm membrane integrity. Results obtained will need further investigation to be confirmed in the field.
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Shah SAH, Haider MS, Ahmed H, Fayyaz MH, Andrabi SMH. Validation of double freezing protocol for Beetal buck (Capra hircus) spermatozoa. Reprod Domest Anim 2022; 57:1615-1622. [PMID: 36017761 DOI: 10.1111/rda.14238] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/22/2022] [Accepted: 08/24/2022] [Indexed: 11/30/2022]
Abstract
The study aimed to validate the double versus single freezing protocol for Beetal buck (Capra hircus) spermatozoa in tris-citric acid (TCA) based extender both in terms of quality and fertilization potential. Computer-assisted sperm motion and kinematic (CASA) variables i.e., total (%), and progressive motilities (TM and PM, %), and rapid velocity (RV, %), average path (VAP, μm/s), straight line (VSL, μm/s), and curved line velocities (VCL, μm/s), straightness, (VSL/VAP, %), and linearity, (VSL/VCL, %) as well as supra-vital plasma membrane integrity (SV-PMI, %), mitochondrial membrane potential (MMP, %), viable / intact acrosome (V-IACR, %) and DNA integrity (DNA-I, %) had significantly greater values (P<0.05) during single freeze-thawing as compared to the double freeze-thawing at 0, 30, 90, 150 and 210 days, respectively. All CASA and other assays alone did not show significant differences (P>0.05) between both freeze-thaw cycles at all treatment durations, respectively. No statistical significance (P>0.05) was observed for the in vivo fertility between single (n = 84/141 = 59.72%) and double freeze-thawing (n =72/136 = 52.90%) cycles, respectively. In conclusion, sperm motion, kinematics, plasma membrane, acrosome, mitochondria and DNA integrities and in vivo fertility are acceptable after the double freezing protocol despite being lower than after one freeze cycle in Beetal buck (Capra hircus).
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Affiliation(s)
- Syed Aftab Hussain Shah
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Centre, Islamabad, Pakistan
| | - Muhammad Shafiq Haider
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Centre, Islamabad, Pakistan
| | - Hussain Ahmed
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Centre, Islamabad, Pakistan
| | - Muhammad Hammad Fayyaz
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Centre, Islamabad, Pakistan
| | - Syed Murtaza Hassan Andrabi
- Animal Reproduction Laboratory, Animal Sciences Institute, National Agricultural Research Centre, Islamabad, Pakistan
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Nishijima K, Kitajima S, Matsuhisa F, Niimi M, Wang CC, Fan J. Strategies for Highly Efficient Rabbit Sperm Cryopreservation. Animals (Basel) 2021; 11:ani11051220. [PMID: 33922622 PMCID: PMC8145333 DOI: 10.3390/ani11051220] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 12/28/2022] Open
Abstract
The rabbit is a valuable animal for both the economy and biomedical sciences. Sperm cryopreservation is one of the most efficient ways to preserve rabbit strains because it is easy to collect ejaculate repeatedly from a single male and inseminate artificially into multiple females. During the cooling, freezing and thawing process of sperms, the plasma membrane, cytoplasm and genome structures could be damaged by osmotic stress, cold shock, intracellular ice crystal formation, and excessive production of reactive oxygen species. In this review, we will discuss the progress made during the past years regarding efforts to minimize the cell damage in rabbit sperms, including freezing extender, cryoprotectants, supplements, and procedures.
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Affiliation(s)
- Kazutoshi Nishijima
- Center for Animal Resources and Collaborative Study, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki 444-8585, Japan
- National Institute for Physiological Sciences, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki 444-8585, Japan
- Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies), Aichi, Okazaki 444-8585, Japan
- Correspondence: (K.N.); (J.F.); Tel.: +81-564-557781 (K.N.); +81-55-2739519 (J.F.)
| | - Shuji Kitajima
- Analytical Research Center for Experimental Sciences, Division of Biological Resources and Development, Saga University, 5-1-1 Nabeshima, Saga 849-8501, Japan; (S.K.); (F.M.)
| | - Fumikazu Matsuhisa
- Analytical Research Center for Experimental Sciences, Division of Biological Resources and Development, Saga University, 5-1-1 Nabeshima, Saga 849-8501, Japan; (S.K.); (F.M.)
| | - Manabu Niimi
- Department of Molecular Pathology, Faculty of Medicine, Interdisciplinary Graduate School of Medical Sciences, University of Yamanashi, 1110 Shimokato, Chuo 409-3898, Japan;
| | - Chen-chi Wang
- Animal Resources Section, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan;
| | - Jianglin Fan
- Department of Molecular Pathology, Faculty of Medicine, Interdisciplinary Graduate School of Medical Sciences, University of Yamanashi, 1110 Shimokato, Chuo 409-3898, Japan;
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
- Correspondence: (K.N.); (J.F.); Tel.: +81-564-557781 (K.N.); +81-55-2739519 (J.F.)
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The ART of bringing extinction to a freeze - History and future of species conservation, exemplified by rhinos. Theriogenology 2021; 169:76-88. [PMID: 33940218 DOI: 10.1016/j.theriogenology.2021.04.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 12/18/2022]
Abstract
The ongoing mass extinction of animal species at an unprecedented rate is largely caused by human activities. Progressive habitat destruction and fragmentation is resulting in accelerated loss of biodiversity on a global scale. Over decades, captive breeding programs of non-domestic species were characterized by efforts to optimize species-specific husbandry, to increase studbook-based animal exchange, and to improve enclosure designs. To counter the ongoing dramatic loss of biodiversity, new approaches are warranted. Recently, new ideas, particularly the application of assisted reproduction technologies (ART), have been incorporated into classical zoo breeding programs. These technologies include semen and oocyte collection, artificial insemination, and in-vitro embryo generation. More futuristic ideas of advanced ART (aART) implement recent advances in biotechnology and stem-cell related approaches such as cloning, inner cell mass transfer (ICM), and the stem-cell-associated techniques (SCAT) for the generation of gametes and ultimately embryos of highly endangered species, such as the northern white rhinoceros (Ceratotherium simum cottoni) of which only two female individuals are left. Both, ART and aART greatly depend on and benefit from the rapidly evolving cryopreservation techniques and biobanking not only of genetic, but also of viable cellular materials suitable for the generation of induced pluripotent stem cells (iPSC). The availability of cryopreserved materials bridges gaps in time and space, thereby optimizing the available genetic variability and enhancing the chance to restore viable populations.
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Charlton SJ, Nielsen MB, Pedersen CR, Thomsen L, Kristjansen MP, Sørensen TB, Pertoldi C, Strand J. Strong Heterogeneity in Advances in Cryopreservation Techniques in the Mammalian Orders. Zoolog Sci 2019; 35:1-22. [PMID: 29417894 DOI: 10.2108/zs170037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Between 1970 and 2012, vertebrate abundance has declined by 58% with an average annual decline of 2%, calling for serious action to prevent a mass extinction and an irreversible loss of biodiversity. Cryobanks and cryopreservation have the potential to assist and improve ex situ and in situ conservation strategies by storing valuable genetic material. A great deal of studies concerning cryopreservation have been performed within the class Mammalia, although no systematic overview has previously been presented. The objective of this study is therefore to evaluate the status, pattern and future of cryopreservation within Mammalia. A strong disproportional distribution of studies in examined orders is displayed. For the majority of examined orders less than 10% of species has been examined. However, the cryopreservation of germplasm has in several cases been successful and resulted in successful applications of assisted reproductive techniques (ARTs). Various obstacles are associated with the development of cryopreservation protocols, and among them the most prominent is interspecific differences in cryotolerance. Extrapolation of protocols in closely related species is considered the most applicable procedure, and a future supplement to overcome this problem is the examination and comparison of cryobiological traits. Successful protocols have been developed for the vast majority of domesticated mammals, which gives incentive for the further extrapolation of protocols in threatened species.
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Affiliation(s)
- Sebastian J Charlton
- 1 Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Mikkel B Nielsen
- 1 Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Carina R Pedersen
- 1 Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Lisette Thomsen
- 1 Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Mads P Kristjansen
- 1 Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Thomas B Sørensen
- 1 Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark
| | - Cino Pertoldi
- 1 Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220 Aalborg, Denmark.,2 Aalborg Zoo, Aalborg, Mølleparkvej 63, 9000 Aalborg, Denmark
| | - Julie Strand
- 3 Randers Regnskov, Randers, Tørvebryggen 11, 8900 Randers, Denmark
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7
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Grötter LG, Cattaneo L, Marini PE, Kjelland ME, Ferré LB. Recent advances in bovine sperm cryopreservation techniques with a focus on sperm post-thaw quality optimization. Reprod Domest Anim 2019; 54:655-665. [PMID: 30681204 DOI: 10.1111/rda.13409] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 01/16/2019] [Indexed: 11/28/2022]
Abstract
Sperm cryopreservation facilitates the storage and transport of germplasm for its use in artificial insemination (AI) and other advanced reproductive technologies. The cryopreservation process can damage sperm and compromise functionality. Several cryobiological studies have found that the physical and biological factors that affect sperm survival at low temperatures during the cryopreservation process often involve the integrity of sperm membrane. In this review, the behaviour of the sperm membrane against cooling, cold shock, ice crystal formation, oxidative stress, osmotic changes, reorganization of the lipid bilayer and addition of cryoprotective agents (CPA) is discussed. In addition, the phenomenon of reactive oxygen species (ROS) and its relationship with the cryopreservation process is also described. Semen cryopreservation techniques have progressed slowly in past years, and the current performance, measured as post-thawed survival, is not very different compared to past decades. Recent advances in understanding the structure of the cell membrane, its function and metabolism have driven to new conservation systems, including lyophilization and vitrification. However, none of these technologies is commercially available, although its future appears very promising.
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Affiliation(s)
- Laura Guadalupe Grötter
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, UNL, Esperanza, Santa Fe, Argentina
| | - Luciano Cattaneo
- Cátedra de Teriogenología, Facultad de Ciencias Veterinarias, UNL, Esperanza, Santa Fe, Argentina
| | - Patricia Estela Marini
- Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET) y Área Biología, Facultad de Ciencias Bioquímicas y Farmacéuticas, UNR, Rosario, Santa Fe, Argentina
| | - Michael E Kjelland
- Conservation, Genetics & Biotech, LLC, Vicksburg, Mississippi.,Mayville State University, Mayville, North Dakota
| | - Luis B Ferré
- Instituto Nacional de Tecnología Agropecuaria, Tres Arroyos, Buenos Aires, Argentina
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Hall SE, Negus C, Johinke D, Bathgate R. Adjusting cryodiluent composition for improved post-thaw quality of rabbit spermatozoa. PLoS One 2017; 12:e0175965. [PMID: 28426717 PMCID: PMC5398568 DOI: 10.1371/journal.pone.0175965] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 04/03/2017] [Indexed: 11/18/2022] Open
Abstract
Improved fertility following artificial insemination with frozen-thawed spermatozoa would offer rabbit producers faster genetic improvement. Previous work investigating cryoprotectants for rabbit spermatozoa have reported inconsistent results. Semen was collected from three rabbit bucks by artificial vagina and frozen using a standard procedure with varied cryodiluent components. Post-thaw analysis encompassed motility, sperm kinematic parameters and acrosome and membrane integrity. Spermatozoa were evaluated at 0, 2 and 4 h after thawing. Experiment 1 compared diluents with 3.5% dimethyl sulfoxide (DMSO), 1.5% acetamide, 1.75% DMSO + 0.75% acetamide or 3.5% DMSO + 1.5% acetamide. The treatment that resulted in the highest post-thaw motility (P<0.001) and acrosome integrity (P<0.001) was DMSO alone. Experiment 2 compared 3.5, 7 and 10% DMSO in the cryodiluent. The best post-thaw sperm motility (P<0.001) and linearity (P = .002) was in 3.5% DMSO, while 10% DMSO afforded higher acrosome/membrane integrity at this last time point (P<0.05). Experiment 3 varied the cryodiluent to contain either 9 or 17% egg yolk or 9 or 17% low density lipoproteins extracted from whole egg yolk. The treatment with the best post-thaw result was 17% egg yolk (motility, P = 0.01; acrosome/membrane integrity, P<0.001). Experiment 4 compared different carbohydrates in the cryodiluent; 50 mM glucose (TCG), 25 mM glucose with 25 mM sucrose (TCGS low), or 50 mM glucose with 50 mM sucrose (TCGS high). When data were pooled across time points, TCG had significantly higher motility than TCGS high (P = 0.021), but was not different from TCGS low. However, TCG had fewer spermatozoa with intact acrosomes and membranes than both TCGS low and TCGS high (P = .002). Put together, these results indicate that the best cryodiluent for rabbit spermatozoa frozen under the conditions used in this paper is with 7% DMSO and 17% egg yolk in a base medium containing 25 mM glucose and 25 mM sucrose.
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Affiliation(s)
- Sally E. Hall
- Faculty of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
| | - Cameron Negus
- Faculty of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
| | - Danielle Johinke
- Faculty of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
| | - Roslyn Bathgate
- Faculty of Veterinary Science, The University of Sydney, Sydney, NSW, Australia
- * E-mail:
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da Silva AM, Bezerra JAB, Campos LB, Praxedes ÉCG, Lima GL, Silva AR. Characterization of epididymal sperm from Spix's yellow-toothed cavies (Galea spixiiWagler, 1831) recovered by different methods. ACTA ZOOL-STOCKHOLM 2016. [DOI: 10.1111/azo.12177] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andréia Maria da Silva
- Laboratory of Animal Germplasm Conservation - LCGA; Universidade Federal Rural do Semi-Árido - UFERSA; Av. Francisco Mota, 572, Costa e Silva Mossoró RN Brazil
| | - José Artur Brilhante Bezerra
- Laboratory of Animal Germplasm Conservation - LCGA; Universidade Federal Rural do Semi-Árido - UFERSA; Av. Francisco Mota, 572, Costa e Silva Mossoró RN Brazil
| | - Lívia Batista Campos
- Laboratory of Animal Germplasm Conservation - LCGA; Universidade Federal Rural do Semi-Árido - UFERSA; Av. Francisco Mota, 572, Costa e Silva Mossoró RN Brazil
| | - Érica Camila Gurgel Praxedes
- Laboratory of Animal Germplasm Conservation - LCGA; Universidade Federal Rural do Semi-Árido - UFERSA; Av. Francisco Mota, 572, Costa e Silva Mossoró RN Brazil
| | - Gabriela Liberalino Lima
- Curso de Medicina Veterinária; Centro de Ciências Agráfias; Universidade Federal de Roraima, BR 174, s/n; Boa Vista RR Brazil
| | - Alexandre Rodrigues Silva
- Laboratory of Animal Germplasm Conservation - LCGA; Universidade Federal Rural do Semi-Árido - UFERSA; Av. Francisco Mota, 572, Costa e Silva Mossoró RN Brazil
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Cryopreservation of captive roe deer (Capreolus capreolus) semen. Theriogenology 2016; 86:695-703. [DOI: 10.1016/j.theriogenology.2016.02.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 02/22/2016] [Accepted: 02/26/2016] [Indexed: 11/18/2022]
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Directional freezing of sperm and associated derived technologies. Anim Reprod Sci 2016; 169:6-13. [DOI: 10.1016/j.anireprosci.2016.02.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 02/02/2016] [Accepted: 02/03/2016] [Indexed: 01/11/2023]
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Sielhorst J, Hagen C, Behrendt D, Schuette B, Burger D, Martinsson G, Sieme H. Effect of Multiple Freezing of Stallion Semen on Sperm Quality and Fertility. J Equine Vet Sci 2016. [DOI: 10.1016/j.jevs.2016.01.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Abstract
Genetic diversity is a primary component of adaptive evolution, and its loss or reduction can decrease the long-term survival probability of populations. Utilization of cryopreserved semen may be considered a perfect tool to improve genetic diversity, reduce inbreeding, and avoid animal translocation for breeding. The present study aimed at finding a reliable epididymal sperm freezing protocol for the critically endangered onager (Equus hemionus onager). Six testicles from three animals were processed postmortem. The effects of two transportation temperatures (22°C and 4°C; testicles submerged in saline), two cryopreservation techniques (conventional liquid nitrogen vapor freezing in straws and directional freezing in 8-ml HollowTubes(TM)), and two postthaw incubation temperatures (22°C and 37°C; evaluated after 0.5, 1, 2, and 3 hr) were tested in a 2×2×2 experimental design. Sperm samples were evaluated for motility, viability, acrosome integrity, and sperm morphology. The resulting optimal freezing protocol includes transportation of testicles at 4°C, cryopreservation by directional freezing, and, if needed, postthaw incubation at 22°C. With this combination of transportation temperature and cryopreservation technique, the authors obtained the following postthaw values normalized to prefreezing values: 60.3±8.8% motility, 60.7±13.3% viability, 75.3±9.5% acrosome integrity, and 94.7±2.9% normal morphology (excluding defects due to the epididymal origin of the sperm). After incubation at 22°C, motility values for the above combination were 40±5.7%, 30.3±5.2%, 28.3±4.4%, and 16.7±4.4% for 0.5, 1, 2, and 3 hr, respectively. In conclusion, with this protocol, good quality semen can be stored for future use in artificial inseminations when and where needed.
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Arav A, Saragusty J. Directional freezing of spermatozoa and embryos. Reprod Fertil Dev 2014; 26:83-90. [PMID: 24305180 DOI: 10.1071/rd13295] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Directional freezing is based on a simple thermodynamic principle whereby the sample is moved through a predetermined temperature gradient at a velocity that determines the cooling rate. Directional freezing permits a precise and uniform cooling rate in small- and large-volume samples. It avoids supercooling and reduces mechanical damage caused by crystallisation. Directional solidification was used to date for slow and rapid freezing, as well as for vitrification of oocytes and embryos by means of the minimum drop size technique: small drops are placed on a microscope slide that is moved at high velocity from the hot base to the cold base. Sperm samples from a wide range of domestic and wild animals were successfully cryopreserved using the directional freezing method. The bovine sexed semen industry may benefit from the increased survival of spermatozoa after directional freezing.
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Affiliation(s)
- Amir Arav
- Shlomzion Hamalca 59, Tel Aviv 62266, Israel
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16
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Pillet E, Duchamp G, Batellier F, Beaumal V, Anton M, Desherces S, Schmitt E, Magistrini M. Egg yolk plasma can replace egg yolk in stallion freezing extenders. Theriogenology 2011; 75:105-14. [DOI: 10.1016/j.theriogenology.2010.07.015] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Revised: 06/25/2010] [Accepted: 07/21/2010] [Indexed: 10/19/2022]
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17
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Si W, Lu Y, He X, Ji S, Niu Y, Tan T, Ji W. Directional freezing as an alternative method for cryopreserving rhesus macaque (Macaca mulatta) sperm. Theriogenology 2010; 74:1431-8. [DOI: 10.1016/j.theriogenology.2010.06.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 06/15/2010] [Accepted: 06/15/2010] [Indexed: 11/25/2022]
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Saragusty J, Hildebrandt T, Bouts T, Göritz F, Hermes R. Collection and preservation of pygmy hippopotamus (Choeropsis liberiensis) semen. Theriogenology 2010; 74:652-7. [DOI: 10.1016/j.theriogenology.2010.03.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2009] [Revised: 02/15/2010] [Accepted: 03/07/2010] [Indexed: 10/19/2022]
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Saragusty J, Gacitua H, Rozenboim I, Arav A. Do physical forces contribute to cryodamage? Biotechnol Bioeng 2009; 104:719-28. [PMID: 19593758 DOI: 10.1002/bit.22435] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
To achieve the ultimate goal of both cryosurgery and cryopreservation, a thorough understanding of the processes responsible for cell and tissue damage is desired. The general belief is that cells are damaged primarily due to osmotic effects at slow cooling rates and intracellular ice formation at high cooling rates, together termed the "two factor theory." The present study deals with a third, largely ignored component--mechanical damage. Using pooled bull sperm cells as a model and directional freezing in large volumes, samples were frozen in the presence or absence of glass balls of three different diameters: 70-110, 250-500, and 1,000-1,250 microm, as a means of altering the surface area with which the cells come in contact. Post-thaw evaluation included motility at 0 h and after 3 h at 37 degrees C, viability, acrosome integrity, and hypoosmotic swelling test. Interactions among glass balls, sperm cells, and ice crystals were observed by directional freezing cryomicroscopy. Intra-container pressure in relation to volume was also evaluated. The series of studies presented here indicate that the higher the surface area with which the cells come in contact, the greater the damage, possibly because the cells are squeezed between the ice crystals and the surface. We further demonstrate that with a decrease in volume, and thus increase in surface area-to-volume ratio, the intra-container pressure during freezing increases. It is suggested that large volume freezing, given that heat dissipation is solved, will inflict less cryodamage to the cells than the current practice of small volume freezing.
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Affiliation(s)
- Joseph Saragusty
- Institute of Animal Science, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel.
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Hildebrandt T, Roellig K, Goeritz F, Fassbender M, Krieg R, Blottner S, Behr B, Hermes R. Artificial insemination of captive European brown hares (Lepus europaeus PALLAS, 1778) with fresh and cryopreserved semen derived from free-ranging males. Theriogenology 2009; 72:1065-72. [DOI: 10.1016/j.theriogenology.2009.06.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2009] [Revised: 06/22/2009] [Accepted: 06/28/2009] [Indexed: 11/25/2022]
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Saragusty J, Gacitua H, Zeron Y, Rozenboim I, Arav A. Double freezing of bovine semen. Anim Reprod Sci 2009; 115:10-7. [DOI: 10.1016/j.anireprosci.2008.11.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2008] [Revised: 10/30/2008] [Accepted: 11/13/2008] [Indexed: 10/21/2022]
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Successful cryopreservation of Asian elephant (Elephas maximus) spermatozoa. Anim Reprod Sci 2009; 115:255-66. [DOI: 10.1016/j.anireprosci.2008.11.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Revised: 10/24/2008] [Accepted: 11/13/2008] [Indexed: 11/21/2022]
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Natan D, Nagler A, Arav A. Freeze-drying of mononuclear cells derived from umbilical cord blood followed by colony formation. PLoS One 2009; 4:e5240. [PMID: 19381290 PMCID: PMC2667668 DOI: 10.1371/journal.pone.0005240] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Accepted: 02/10/2009] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND We recently showed that freeze-dried cells stored for 3 years at room temperature can direct embryonic development following cloning. However, viability, as evaluated by membrane integrity of the cells after freeze-drying, was very low; and it was mainly the DNA integrity that was preserved. In the present study, we improved the cells' viability and functionality after freeze-drying. METHODOLOGY/PRINCIPAL FINDINGS We optimized the conditions of directional freezing, i.e. interface velocity and cell concentration, and we added the antioxidant EGCG to the freezing solution. The study was performed on mononuclear cells (MNCs) derived from human umbilical cord blood. After freeze-drying, we tested the viability, number of CD34(+)-presenting cells and ability of the rehydrated hematopoietic stem cells to differentiate into different blood cells in culture. The viability of the MNCs after freeze-drying and rehydration with pure water was 88%-91%. The total number of CD34(+)-presenting cells and the number of colonies did not change significantly when evaluated before freezing, after freeze-thawing, and after freeze-drying (5.4 x 10(4)+/-4.7, 3.49 x 10(4)+/-6 and 6.31 x 10(4)+/-12.27 cells, respectively, and 31+/-25.15, 47+/-45.8 and 23.44+/-13.3 colonies, respectively). CONCLUSIONS This is the first report of nucleated cells which have been dried and then rehydrated with double-distilled water remaining viable, and of hematopoietic stem cells retaining their ability to differentiate into different blood cells.
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Hermes R, Göritz F, Saragusty J, Sós E, Molnar V, Reid C, Schwarzenberger F, Hildebrandt T. First successful artificial insemination with frozen-thawed semen in rhinoceros. Theriogenology 2009; 71:393-9. [DOI: 10.1016/j.theriogenology.2008.10.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Revised: 10/22/2008] [Accepted: 10/22/2008] [Indexed: 11/24/2022]
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Mocé E, Vicente JS. Rabbit sperm cryopreservation: A review. Anim Reprod Sci 2009; 110:1-24. [DOI: 10.1016/j.anireprosci.2008.08.015] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 08/11/2008] [Accepted: 08/11/2008] [Indexed: 12/20/2022]
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Split-sample comparison of directional and liquid nitrogen vapour freezing method on post-thaw semen quality in white rhinoceroses (Ceratotherium simum simum and Ceratotherium simum cottoni). Theriogenology 2008; 71:275-91. [PMID: 18775559 DOI: 10.1016/j.theriogenology.2008.07.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2008] [Revised: 07/07/2008] [Accepted: 07/12/2008] [Indexed: 11/22/2022]
Abstract
To increase the quality of cryopreserved sperm in white rhinoceros, the liquid nitrogen vapour (LN vapour) freezing and the multi-thermal gradient directional freezing methods were compared. Sixteen white rhinoceros (Ceratotherium simum sp.) were electro-ejaculated. Semen samples were diluted with cryoextender (Tris, lactose, egg-yolk, DMSO) and aliquoted into straws for LN vapour freezing, and glass hollow tubes for directional freezing. The sperm quality was evaluated before and after freezing by assessing the following parameters: motility, morphologic state, acrosomal integrity and plasma membrane function and integrity (i.e. sperm viability) as defined by the hypo-osmotic swelling. Directional freezing improved the sperm viability by 5.6% (p<0.005), progressive motility score by 34.7% and sperm motility index (SMI) by 8.1% (p<0.005) versus LN vapour freezing. When data was categorized into groups of low (<19%), moderate (20-39%) and high (>40%) percentages of morphologically normal, directional freezing (DF) resulted in 31.4% less abnormal acrosomes for the low quality group as well as 18.7% increase in intact acrosomes and 10.9% increase in motility for the high quality group compared to LN vapour freezing (LN) (p<0.01, p<0.03, p<0.01, respectively). LN showed a significant reduction in sperm head volume (5.7%, p<0.05) compared to the prefreeze; whereas, no significant reduction in head volume was demonstrated after DF. Several additives (xanthenuric acid, cytochalasin D, potassium, EDTA) to the basic cryoextender provided no significant improvement in spermatozoal survival after directional freezing. In conclusion, directional freezing proved to facilitate higher gamete survival compared to LN vapour freezing. This is especially effective in ejaculates of low sperm quality and is important in endangered species where high quality semen donors are often not accessible. These results suggest that directional freezing could be valuable particularly for species with limited freezability of spermatozoa.
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Vicente J, Lavara R, Lavara F, Marco-Jiménez F, Viudes-de-Castro M. Rabbit reproductive performance after insemination with buserelin acetate extender. Livest Sci 2008. [DOI: 10.1016/j.livsci.2007.07.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Saragusty J, Gacitua H, Pettit MT, Arav A. Directional Freezing of Equine Semen in Large Volumes. Reprod Domest Anim 2007; 42:610-5. [DOI: 10.1111/j.1439-0531.2006.00831.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Fickel J, Wagener A, Ludwig A. Semen cryopreservation and the conservation of endangered species. EUR J WILDLIFE RES 2007. [DOI: 10.1007/s10344-007-0089-z] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu E, Kitajima S, Wiese E, Reifenberg K, Morimoto M, Watanabe T, Fan J. Re-Establishment of Complement C6-Deficient Rabbit Colony by Cryopreserved Sperm Transported from Abroad. Exp Anim 2007; 56:167-71. [PMID: 17460363 DOI: 10.1538/expanim.56.167] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Introducing rabbits as genetic materials into institutes for experimental animals from other colonies is essential for biomedical research. Currently, it is inconvenient to transport live rabbits from abroad, since they suffer from stress, are prone to accidents and must be inspected, as well as endure quarantine during the often long journey. To overcome these limitations of live animals, we transported sperm cryopreserved in liquid nitrogen. Rabbit sperm was collected from complement C6-deficient rabbits in Germany and then transported to Japan using a dry-shipper containing liquid nitrogen. After thawing the frozen semen and artificial insemination (AI), eleven live pups were born. Subsequently, a homozygous C6-deficient rabbit colony was established.
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Affiliation(s)
- Enqi Liu
- Analytical Research Center for Experimental Sciences, Saga University, Saga, Japan
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