Optimization of donor cell cycle synchrony, maturation media and embryo culture system for somatic cell nuclear transfer in the critically endangered Vietnamese Ỉ pig

Our aim was to establish an efficient culture system to produce embryos by SCNT of the endangered Vietnamese Ỉ pig. Reducing the serum concentration from 10.0% to 0.2% during culture efficiently synchronized Ỉ pig fibroblasts used as donor cells at the G0/G1 stage. Oocyte maturation in a defined por...

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Otros Autores: Nguyen, Van Khanh, Somfai, Tamas, Salamone, Daniel Felipe, Thu Huong, Vu Thi, Nguyen, Huong Le Thi, Huu, Quan Xuan, Hoang, Au Thi, Phan, Hieu Trung, Pham, Yen Kim Thi, Pham, Lan Doan
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Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2021nguyen.pdf
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024 |a 10.1016/j.theriogenology.2021.02.008 
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245 1 |a Optimization of donor cell cycle synchrony, maturation media and embryo culture system for somatic cell nuclear transfer in the critically endangered Vietnamese Ỉ pig 
520 |a Our aim was to establish an efficient culture system to produce embryos by SCNT of the endangered Vietnamese Ỉ pig. Reducing the serum concentration from 10.0% to 0.2% during culture efficiently synchronized Ỉ pig fibroblasts used as donor cells at the G0/G1 stage. Oocyte maturation in a defined porcine oocyte medium (POM) supplemented with EGF and gonadotrophins resulted in higher cleavage and blastocyst rates compared with a non-defined POM containing pig follicular fluid (but without EGF) and both the defined and non-defined variants of NCSU-37. For embryo culture PZM3 and PZM5 media were superior to NCSU-37, in terms of the percentage of cleaved embryos. Addition of serum to PZM3 medium on Day 5 of culture (Day 0 ¼ SCNT) improved blastocyst development. When SCNT embryos were transferred at the blastocyst stage, 7 of 11 recipients became pregnant. However, live offspring were not obtained. In conclusion, we established a system for the production of Ỉ pig embryos by SCNT and achieved blastocyst production rate at 26.4% by improving culture systems for donor cells, oocytes and embryos culture. Transfer of embryos resulted in pregnancies; however, live offspring were not obtained. 
650 |2 Agrovoc  |9 26 
653 |a VIETNAMESE I PIG 
653 |a SOMATIC CELL NUCLEAR TRANSFER 
653 |a CULTURE SYSTEM 
653 |a EMBRYO PRODUCTION 
653 |a EMBRYO TRANSFER 
700 1 |a Nguyen, Van Khanh  |u National Institute of Animal Science. Key Lab of Animal Cell Biotechnology. Hanoi, Viet Nam.  |9 73773 
700 1 |a Somfai, Tamas  |u Institute of Livestock and Grassland Science. Animal Breeding and Reproduction Research Division. NARO, Tsukuba, Japan.  |9 73774 
700 1 |a Salamone, Daniel Felipe  |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.  |9 61021 
700 1 |a Thu Huong, Vu Thi  |u National Institute of Animal Science. Key Lab of Animal Cell Biotechnology. Hanoi, Viet Nam.  |9 73775 
700 1 |a Nguyen, Huong Le Thi  |u National Institute of Animal Science. Key Lab of Animal Cell Biotechnology. Hanoi, Viet Nam.  |9 73776 
700 1 |a Huu, Quan Xuan  |u National Institute of Animal Science. Key Lab of Animal Cell Biotechnology. Hanoi, Viet Nam.  |9 73777 
700 1 |a Hoang, Au Thi  |u National Institute of Animal Science. Key Lab of Animal Cell Biotechnology. Hanoi, Viet Nam.  |9 73778 
700 1 |a Phan, Hieu Trung  |u National Institute of Animal Science. Key Lab of Animal Cell Biotechnology. Hanoi, Viet Nam.  |9 73779 
700 1 |a Pham, Yen Kim Thi  |u National Institute of Animal Science. Key Lab of Animal Cell Biotechnology. Hanoi, Viet Nam.  |9 73868 
700 1 |a Pham, Lan Doan  |u National Institute of Animal Science. Key Lab of Animal Cell Biotechnology. Hanoi, Viet Nam.  |9 73869 
773 |t Theriogenology  |g Vol.166 (2021), p.21-28, tbls., fot. 
856 |f 2021nguyen  |i en reservorio  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2021nguyen.pdf  |x ARTI202206 
856 |u http://www.elsevier.com/  |z LINK AL EDITOR 
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