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Fatira E, Havelka M, Saito T, Landeira J, Rodina M, Gela D, Pšenička M. Intracytoplasmic sperm injection in sturgeon species: A promising reproductive technology of selected genitors. Front Vet Sci 2022; 9:1054345. [PMID: 36619956 PMCID: PMC9816131 DOI: 10.3389/fvets.2022.1054345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Sturgeons are the most endangered species group and their wild populations continue to decrease. In this study, we apply intracytoplasmic sperm injection (ICSI), an assisted reproductive technology, for the first time in endangered and critically endangered sturgeons. Using various egg-sperm species combinations we performed different ICSI experiments with immobilized pre- or non-activated spermatozoa, single or many, fresh or cryopreserved. Then we evaluated the fertilization success as well as the paternity of the resultant embryos and larvae. Surprisingly, all experimental groups exhibited embryonic development. Normal-shaped feeding larvae produced in all egg-sperm species-combination groups after ICSI using single fresh-stripped non-activated spermatozoa, in one group after ICSI using single fresh-stripped pre-activated spermatozoa, and in one group after ICSI using multiple fresh-stripped spermatozoa. ICSI with single cryopreserved non-activated spermatozoa produced neurula stage embryos. Molecular analysis showed genome integration of both egg- and sperm-donor species in most of the ICSI transplants. Overall, ICSI technology could be used as an assisted reproduction technique for producing sturgeons to rescue valuable paternal genomes.
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Affiliation(s)
- Effrosyni Fatira
- Research Institute of Fish Culture and Hydrobiology, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia Ceske Budejovice, Ceské Budějovice, Czechia,Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain,*Correspondence: Effrosyni Fatira ✉
| | - Miloš Havelka
- Nishiura Station, South Ehime Fisheries Research Center, Ehime University, Matsuyama, Japan
| | - Taiju Saito
- Research Institute of Fish Culture and Hydrobiology, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia Ceske Budejovice, Ceské Budějovice, Czechia,Nishiura Station, South Ehime Fisheries Research Center, Ehime University, Matsuyama, Japan
| | - José Landeira
- Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Marek Rodina
- Research Institute of Fish Culture and Hydrobiology, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia Ceske Budejovice, Ceské Budějovice, Czechia
| | - David Gela
- Research Institute of Fish Culture and Hydrobiology, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia Ceske Budejovice, Ceské Budějovice, Czechia
| | - Martin Pšenička
- Research Institute of Fish Culture and Hydrobiology, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia Ceske Budejovice, Ceské Budějovice, Czechia
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Amstislavsky SY, Kozhevnikova VV, Muzika VV, Kizilova EA. Reproductive biology and a genome resource bank of Felidae. Russ J Dev Biol 2017. [DOI: 10.1134/s1062360417020023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Jimenez Gonzalez S, Howard JG, Brown J, Grajales H, Pinzón J, Monsalve H, Moreno MA, Jimenez Escobar C. Reproductive analysis of male and female captive jaguars (Panthera onca) in a Colombian zoological park. Theriogenology 2017; 89:192-200. [DOI: 10.1016/j.theriogenology.2016.09.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 09/17/2016] [Accepted: 09/24/2016] [Indexed: 10/20/2022]
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Orr TJ, Zuk M. Reproductive delays in mammals: an unexplored avenue for post-copulatory sexual selection. Biol Rev Camb Philos Soc 2014; 89:889-912. [DOI: 10.1111/brv.12085] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 01/12/2014] [Accepted: 01/16/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Teri J. Orr
- Department of Biology; University of California; Riverside CA 92521 U.S.A
| | - Marlene Zuk
- Ecology, Evolution and Behavior; University of Minnesota; 1987 Upper Buford Circle Saint Paul MN 55108 U.S.A
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Snow Leopard (Panthera uncia) Spermatozoa Are Sensitive to Alkaline pH, But MotilityIn VitroIs Not Influenced by Protein or Energy Supplements. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/j.1939-4640.1996.tb01833.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Gañán N, González R, Garde JJ, Martínez F, Vargas A, Gomendio M, Roldan ERS. Assessment of semen quality, sperm cryopreservation and heterologous IVF in the critically endangered Iberian lynx (Lynx pardinus). Reprod Fertil Dev 2009; 21:848-59. [DOI: 10.1071/rd08226] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Accepted: 05/17/2009] [Indexed: 11/23/2022] Open
Abstract
Semen traits and factors affecting sperm cryopreservation were assessed in the Iberian lynx (Lynx pardinus), a species regarded as the most endangered felid in the world. For cryopreservation, semen was washed, resuspended in a Tes–Tris-based diluent (TEST) or a Tris-based diluent (Biladyl), both with 20% egg yolk and 4% glycerol, loaded into straws, cooled to 5°C using an automated programmable system and frozen on nitrogen vapour. Heterologous IVF of in vitro-matured domestic cat oocytes was used to test the fertilising ability of cryopreserved spermatozoa. Electroejaculates from five males were obtained. Characterisation of the electroejaculates revealed mean (± s.e.m.) values of 3.3 ± 0.6 × 106 total spermatozoa, 73.6 ± 4.6% motile spermatozoa, 23.7 ± 4.0% morphologically normal spermatozoa and 40.7 ± 2.3% spermatozoa with intact acrosomes. After thawing a higher percentage of motile spermatozoa was seen in TEST than in Biladyl (34.0 ± 6.2% v. 7.5 ± 4.8%, respectively; P < 0.05); however, there were no differences in the percentage of intact acrosomes between the two diluents. Iberian lynx spermatozoa fertilised domestic cat oocytes in vitro, with higher fertilisation rates observed for spermatozoa cryopreserved in TEST than in Biladyl, although the difference did not reach statistical significance (20.5 ± 4.5% v. 11.5 ± 6.8%, respectively). There were positive significant relations between the fertilisation rates and both the percentage of normal spermatozoa and the percentage of spermatozoa with an intact acrosome before cryopreservation (P = 0.04). This first report of the collection and cryopreservation of Iberian lynx semen and analysis of fertilising ability is an important step in the development of assisted reproductive techniques for this critically endangered felid species.
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Stoops MA, Bond JB, Bateman HL, Campbell MK, Levens GP, Bowsher TR, Ferrell ST, Swanson WF. Comparison of different sperm cryopreservation procedures on post-thaw quality and heterologous in vitro fertilisation success in the ocelot (Leopardus pardalis). Reprod Fertil Dev 2007; 19:685-94. [PMID: 17601417 DOI: 10.1071/rd06078] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2006] [Accepted: 04/30/2007] [Indexed: 11/23/2022] Open
Abstract
Cryopreservation of spermatozoa from free-living ocelots (Leopardus pardalis) could benefit their conservation by facilitating gene flow between in situ and ex situ populations without requiring removal of additional cats from the wild. The objective of this study was to investigate three different methods of ocelot sperm cryopreservation to identify the most appropriate technique for use in a field environment. Male ocelots (n = 10), housed in North American zoos, were anaesthetised with tiletamine–zolazepam (7mg kg–1 bodyweight; i.m.) and subjected to a regimented electroejaculation procedure. Recovered semen was evaluated for sperm concentration, motility and morphology and processed for cryopreservation by three methods: (1) pelleting on dry ice, (2) freezing in straws over liquid nitrogen vapour; and (3) freezing in straws in a dry shipper. Frozen samples were thawed and assessed for post-thaw acrosome status, viability, motility over time and ability to fertilise viable domestic cat oocytes. Although several post-thaw sperm parameters varied (P < 0.05) among freezing methods, frozen–thawed ocelot spermatozoa from all treatments showed a similar (P > 0.05) capacity to bind, penetrate and fertilise viable domestic cat oocytes. These findings suggest that spermatozoa collected from male ocelots under field conditions may be frozen in straws either using liquid nitrogen alone or in a charged dry shipper to retain adequate functional competence after thawing for use with assisted reproductive procedures.
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Affiliation(s)
- Monica A Stoops
- Center for Conservation and Research of Endangered Wildlife, Cincinnati Zoo and Botanical Garden, 3400 Vine Street, Cincinnati, OH 45220, USA.
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Abstract
Species are becoming extinct at a rate 100 times the natural background rates. Considering all mammalian orders, 24% of all Carnivora species are threatened. The goal of carnivore conservation is to reverse the decline in populations and to secure remaining populations in ways that will assure enduring public support. In this context, biotechnology is a tool with tremendous potential for assisting the conservation of endangered canid and felid species. As the first step for biotechnology development is the gamete obtainment, this review will discuss the potential of gamete recovery from non-domestic canids and felids, based on learning how to apply these procedures in the domestic carnivores. Thus, electroejaculation and obtaining both epidydimal spermatozoon and spermatogonial germ cells are indicated as techniques for male gametes recovery. In the female gametes retrieval, different methods for oocyte recovery from both antral and preantral follicles, and the possibility for ovarian tissue transplantation are discussed. Furthermore, the study discusses the responsibilities involved in the use of assisted reproduction in endangered species conservation.
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Affiliation(s)
- Alexandre R Silva
- Laboratory of Carnivore Reproduction, PPGCV-UECE, Paranjana Ave. 1700, Itaperi, Fortaleza, Ceará 60740-000, Brazil.
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Pukazhenthi BS, Wildt DE. Which reproductive technologies are most relevant to studying, managing and conserving wildlife? Reprod Fertil Dev 2004. [DOI: 10.1071/rd03076] [Citation(s) in RCA: 165] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The advent of in vitro fertilisation (IVF) and embryo transfer in the 1970s led to speculation about the potential value of these and other ‘reproductive technologies’ to conserving endangered species. So far, and for the most part, assisted breeding techniques that are routine in domesticated species are not easily adapted to wildlife. Species differences in reproductive form (anatomy/morphology) and function (mechanisms regulating reproductive success) limit the practical applicability for offspring production. Thus, the limiting factor is the lack of basic knowledge about thousands of unstudied species, the foundation that is essential to allowing reproduction to be enhanced and/or controlled. There now is excellent evidence that reproductive technologies are most useful as tools for studying how different species reproduce, especially defining novel and unique mechanisms. The present paper reviews the status and relevance of various reproductive technologies that are useful or have potential for wildlife. Modern examples of progress are provided indicating how these tools are being used to understand ways that wildlife species reproduce and, in some cases, how such knowledge has been used for successful assisted breeding, improved management and conservation.
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Luvoni GC, Kalchschmidt E, Marinoni G. Conservation of feline semen. Part II: Cold-induced damages on spermatozoal fertilizing ability. J Feline Med Surg 2003; 5:257-63. [PMID: 12948500 DOI: 10.1016/s1098-612x(03)00030-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
During the conservation of feline semen, the freeze-thaw procedure in particular is responsible for inducing severe spermatozoal damage, which diminishes fertilizing ability. Therefore, cold-induced damage represents a limiting factor for the conservation of semen, particularly semen from felids, which are often affected by teratospermia. In this article, feline sperm characteristics are reported, with special reference to motility and morphology, which are more likely to be affected by conservation protocols; and moreover, the causes of cold-induced damages are described. Attention has been focused on methods to evaluate functional integrity of spermatozoa, and those applied to cat semen are reviewed. Among these, a rather recently developed technique involves fluorescent staining methods, and in particular chlortetracycline. The chlortetracycline assay applied to cryopreserved cat epididymal sperm shows that it is suitable to evaluate the functional status of cat sperm.
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Affiliation(s)
- G C Luvoni
- Department of Veterinary Clinical Sciences, Obstetrics and Gynaecology, University of Milan, 20133 Milan, Italy.
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Herrick JR, Swanson WF. Gonadotropin exposure, salt storage and storage duration affect penetration of domestic cat oocytes by homologous spermatozoa. Theriogenology 2003; 59:1503-13. [PMID: 12559455 DOI: 10.1016/s0093-691x(02)01203-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Salt-stored domestic cat oocytes are routinely used to study sperm function in domestic and nondomestic felids. Our objectives were to assess the effects of in vitro maturation (IVM), salt storage and storage duration on penetration of domestic cat oocytes by homologous spermatozoa. In Experiment 1, domestic cat spermatozoa were coincubated with fresh immature oocytes, salt-stored (2-3 weeks) immature oocytes, or salt-stored (2-3 weeks) IVM oocytes matured in Minimum Essential Medium containing 0.1IU FSH and 0.1IU LH/ml (IVM1) or 0.5IU FSH and 2.2IULH/ml (IVM2). In Experiment 2, all oocytes were matured (IVM2) and inseminated fresh or after salt storage for 2-3 weeks, 2-3 months or 9 months. In Experiment 1, penetration of the outer zona pellucida (OZP) was greater (P<0.05) in salt-stored IVM2 oocytes than in salt-stored immature oocytes, whereas penetration of salt-stored IVM1 oocytes was intermediate (P>0.05). In Experiment 2, penetration of the OZP and inner zona pellucida (IZP) was higher (P<0.05) in fresh IVM2 oocytes than in salt-stored oocytes, and a higher (P<0.05) proportion of oocytes had IZP sperm after 2-3 weeks of storage than after 2-3 months. Penetration of the perivitelline space was higher (P<0.05) in fresh IVM2 oocytes than in oocytes stored for 2-3 weeks or 2-3 months. These results suggest that oocyte penetration is improved by IVM, but is impaired by exposure to salt-storage solution and prolonged storage duration.
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Affiliation(s)
- J R Herrick
- Center for Conservation and Research of Endangered Wildlife, Cincinnati Zoo and Botanical Garden, 3400 Vine Street, OH 45220-1399, USA
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Abstract
Many species of mammals are threatened or endangered. Methods of assisted reproduction that are being used with increasing frequency to produce offspring of domestic animals and humans are often viewed as offering innovative ways to reproduce non-domestic species as well. Uncounted millions of live young of domestic or laboratory species have been produced from gametes and embryos stored at -70 degrees C or below, sometimes for as long as 25 to 35 yrs. Such methods of cryopreservation are now being applied with increasing frequency and urgency to preserve gametes and embryos of non-domestic and threatened species to establish "genome resource banks" or "frozen zoos." But levels of success to produce live young from such cryopreserved gametes or embryos vary considerably from species to species, as well as from individual to individual. It is sometimes thought that differences among species in fundamental characteristics of their gametes may determine the efficacy of cryopreservation and the production of live young. However, it may not be that ineffective cryopreservation is responsible for low success rates. Rather, the limiting factor may be insufficient information and knowledge of the most basic reproductive biology of such non-domestic species. Even standard methods of cryopreservation may be completely adequate to act as a "temporary" expedient to preserve germplasm of non-domestic species to permit time to acquire a fuller understanding of the biology and behavior of non-domestic species.
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Affiliation(s)
- S P Leibo
- Audubon Nature Institute Center for Research of Endangered Species, Department of Biological Sciences, University of New Orleans, New Orleans, LA 70131, USA
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Spindler RE, Wildt DE. Quality and age of companion felid embryos modulate enhanced development by group culture. Biol Reprod 2002; 66:167-73. [PMID: 11751278 DOI: 10.1095/biolreprod66.1.167] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
For some species, embryos cultured with conspecific companions may have enhanced in vitro development compared with singletons. The objective of this study was to determine the effect of quality and age of companion embryos on single felid embryos produced by in vitro maturation or in vitro fertilization. Test oocytes (intermediate quality) were inseminated and incubated alone or with 10 embryos derived from oocytes with a high, intermediate, or low glucose uptake. The effect of relative age of companion embryos on test embryo development was also examined by insemination and incubation of test oocytes alone or with 10 conspecific embryos that were older, younger, or the same age. Test embryos coincubated with better- or equal-quality companions had better development and more cells per embryo (mean +/- SEM number, 74.9 +/- 16.9 and 40.6 +/- 8.8, respectively, Day 7; P < 0.05) than test embryos coincubated with lesser-quality companions (5.1 +/- 1.4) or alone (8.4 +/- 3.7). Intermediate-quality embryos incubated with older companions had more cells per embryo (88.3 +/- 17.0; P < 0.01) than those incubated with synchronous (49.3 +/- 12.1) or younger (29.4 +/- 6.1) embryos. The cell number of solitary embryos (9.8 +/- 3.1) was less (P < 0.05) than that of every group of test embryos incubated with companions, regardless of age. In vitro development of solitary cat embryos is improved by culture with excellent-quality conspecific companions, particularly companions of an advanced age.
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Affiliation(s)
- Rebecca E Spindler
- Conservation & Research Center, National Zoological Park, Smithsonian Institution, Front Royal, Virginia 22630, USA.
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WILDT DAVIDE, ROTH TERRIL. Assisted reproduction for managing and conserving threatened felids. ACTA ACUST UNITED AC 1997. [DOI: 10.1111/j.1748-1090.1997.tb01207.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Isolation of preantral follicles from nondomestic cats—viability and ultrastructural investigations. Anim Reprod Sci 1996. [DOI: 10.1016/0378-4320(96)01549-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Roth TL, Swanson WF, Blumer E, Wildt DE. Enhancing zona penetration by spermatozoa from a teratospermic species, the cheetah (Acinonyx jubatus). THE JOURNAL OF EXPERIMENTAL ZOOLOGY 1995; 271:323-30. [PMID: 7722475 DOI: 10.1002/jez.1402710410] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Cheetahs (Acinonyx jubatus) produce poor quality ejaculates that can limit the efficiency of standard assisted reproduction including artificial insemination (AI) and in vitro fertilization (IVF). The purpose of this study was to: (1) further study sperm-oocyte interaction in this teratospermic species by examining the ability of malformed sperm to interact with various oocyte barriers; and (2) assess the potential of zona piercing for assisting IVF in a teratospermic felid. Zonae of salt-stored (SS), domestic cat oocytes were mechanically pierced (ZnPd) three times each. Semen was collected by electroejaculation from six male cheetahs and ejaculates were processed for IVF. Sperm aliquots from each ejaculate were assessed for a sperm motility index (SMI) over time. Zona-intact (ZnIn-SS) oocytes (n = 78) and ZnPd-SS oocytes (n = 74) were coincubated with spermatozoa in vitro for 6 h. The proportion of morphologically abnormal spermatozoa per ejaculate was high for all males (range 81.5% to 95.9%). SMI values at 0 and 6 h were variable, ranging from 50 to 75 and 0 to 40, respectively. Spermatozoa from all ejaculates bound to and penetrated the outer zona pellucida of ZnIn-SS and ZnPd-SS oocytes similarly (P > 0.05). The proportion of oocytes containing spermatozoa within the inner zona layer and the average number of spermatozoa per oocyte in this region were greater (P < 0.05) for the ZnPd-SS than ZnIn-SS oocytes (39.2% and 1.0 versus 12.8% and 0.2, respectively). Although zona piercing enhanced sperm penetration, there was no increase (P > 0.05) in pleiomorphic spermatozoa penetrating the inner zona pellucida or PVS.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- T L Roth
- Conservation and Research Center, National Zoological Park, Smithsonian Institution, Front Royal, VA 22630
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