Journal of Embryo Transfer (한국수정란이식학회지)

The Korean Society of Embryo Transfer (한국수정란이식학회)
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Comparison of Embryo Production Performance and Conception Rate after Embryo Transfer between Mongolian Cattle and Korean Native Cattle

  • Chuluundorj, Gantugs (Animal Biotechnology, Graduate School of Bio and information Technology, Institute of Genetic Engineering, Hankyong National University) ;
  • Lee, Ho-Jun (Animal Biotechnology, Graduate School of Bio and information Technology, Institute of Genetic Engineering, Hankyong National University) ;
  • Son, Dong-Soo (National Research Foundation of Korea(NRF)) ;
  • Ganbaatar, Enkhmanlai (Department of Biotechnology and Breeding, School of Animal Science and Biotechnology, Mongolian University of Life Sciences) ;
  • Tumur, Baldan (Department of Biotechnology and Breeding, School of Animal Science and Biotechnology, Mongolian University of Life Sciences) ;
  • Yoon, Jong-Taek (Animal Biotechnology, Graduate School of Bio and information Technology, Institute of Genetic Engineering, Hankyong National University)
  • Received : 2016.12.08
  • Accepted : 2017.10.16
  • Published : 2017.12.30
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Abstract

This study is to compare the effect of estrus synchronization and embryo transfer between Korean and Mongolian cattle. Embryos were collected from 9 donors housed in Asan city in South Chungcheong Province, South Korea. Embryos were collected 9 donors from Khushaat sum, Selenge province and Bayanchandmani sum, Tov province in Mongolia. Follicle Stimulating Hormone (FSH), Controlled Internal Drug Release (CIDR) and Prostaglandin (PG) were used for superovulation. Subsequently, Artificial Insemination (AI) was done for donor cow and embryo was collected after 7 and 8 days. Collected embryos were compared between Mongolian and Korean cattle. Finally, good quality and fresh embryos were transferred to 50 and 22 recipients of cows in Korea and Mongolia respectively. The findings show that Korean native cattle each donor cow produced on an average 16.9 embryos and, 10.9 embryos were found transferable. But in case of Mongolia the average production of embryos per donor cow was 8.6 embryos and, 6.2 embryos were found transferable. Embryo collection after 7 and 8 days was not difference in embryo production in Korea. But, in Mongolia embryo production after 8 days was found more efficient than the 7 days. Korean native recipient's cows (74.6%) and Mongolian recipient's cows (71.0%) respectively were found transferable ovarian stage. The result suggested that efficiency of embryo production from the superovulation method treated of Korean cow were higher than the Mongolian cow. The pregnancy rate of Korea native cattle was 72%, which was about 10% higher than that of Mongolia cattle.

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References

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