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KMID : 1025520170590010024
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Journal of Animal Science and Technology
2017 Volume.59 No. 1 p.24 ~ p.24
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Choosing a culture medium for SCNT and iSCNT reconstructed embryos: from domestic to wildlife species
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Cordova A.
King W. A.
Mastromonaco G. F.
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Abstract
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Over the past decades, in vitro culture media have been developed to successfully support IVF embryo growth in a variety of species. Advanced reproductive technologies, such as somatic cell nuclear transfer (SCNT), challenge us with a new type of embryo, with special nutritional requirements and altered physiology under in vitro conditions. Numerous studies have successfully reconstructed cloned embryos of domestic animals for biomedical research and livestock production. However, studies evaluating suitable culture conditions for SCNT embryos in wildlife species are scarce (for both intra- and interspecies SCNT). Most of the existing studies derive from previous IVF work done in conventional domestic species. Extrapolation to non-domestic species presents significant challenges since we lack information on reproductive processes and embryo development in most wildlife species. Given the challenges in adapting culture media and conditions from IVF to SCNT embryos, developmental competence of SCNT embryos remains low. This review summarizes research efforts to tailor culture media to SCNT embryos and explore the different outcomes in diverse species. It will also consider how these culture media protocols have been extrapolated to wildlife species, most particularly using SCNT as a cutting-edge technical resource to assist in the preservation of endangered species.
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KEYWORD
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Somatic cell nuclear transfer, in vitro culture, Culture media, Nutrients, Embryos, Domestic species, Wildlife species
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