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혈청과 난포액 및 성선자극호르몬 첨가가 염소 난자의 체외성숙에 미치는 영향

Influence of blood serum, follicular fluid and gonadotropin on in vitro maturation for goat oocytes

  • 이상훈 (농촌진흥청 국립축산과학원 가축유전자원센터) ;
  • 전다연 (농촌진흥청 국립축산과학원 가축유전자원센터) ;
  • 이진욱 (농촌진흥청 국립축산과학원 가축유전자원센터) ;
  • 이성수 (농촌진흥청 국립축산과학원 가축유전자원센터) ;
  • 김승창 (농촌진흥청 국립축산과학원 가축유전자원센터) ;
  • 김찬란 (농촌진흥청 국립축산과학원 가축유전자원센터) ;
  • 김관우 (농촌진흥청 국립축산과학원 가축유전자원센터)
  • Lee, Sang-Hoon (Animal Genetic Resources Research Center, National Institute of Animal Science, RDA) ;
  • Jeon, Dayeon (Animal Genetic Resources Research Center, National Institute of Animal Science, RDA) ;
  • Lee, Jinwook (Animal Genetic Resources Research Center, National Institute of Animal Science, RDA) ;
  • Lee, Sung-Soo (Animal Genetic Resources Research Center, National Institute of Animal Science, RDA) ;
  • Kim, Seungchang (Animal Genetic Resources Research Center, National Institute of Animal Science, RDA) ;
  • Kim, Chan-Lan (Animal Genetic Resources Research Center, National Institute of Animal Science, RDA) ;
  • Kim, Kwan-Woo (Animal Genetic Resources Research Center, National Institute of Animal Science, RDA)
  • 투고 : 2019.07.19
  • Accepted : 2019.09.06
  • Published : 2019.09.30

Abstract

본 연구는 염소 난자의 체외배양 시 혈청과 호르몬 첨가의 효과를 알아보기 위하여 체외성숙 효율, 유전자발현 및 체외수정 후 배발달율을 조사하였다. 본 실험에서는 기본 체외성숙 배양액에 10% gBS, 10% gFF를 첨가하여 혈청유무에 따른 효과와 FSH를 조합하여 체외성숙 효율을 조사한 결과, 처리구 모두 대조구보다 유의적으로 높은 성숙률을 보였다. 특히 gBS와 FSH를 조합하였을 때 처리구 중에서도 77.8%로 유의적으로 가장 높은 체외성숙 결과를 보였다. 또한, 각 처리구로부터 얻은 성숙 난자를 이용하여 체외수정 배발달 효율을 조사한 결과 모두 유의적으로 향상되었으며 특히 gBS와 gFF에 FSH를 혼합 처리한 두 그룹이 우수한 결과를 보였다. 난자의 성숙과 관련된 BMP15와 GDF9의 mRNA 발현량을 비교한 결과, 처리구간 특이점이나 유의적 차이가 나타나지 않았다. 본 연구의 결과 염소 난자의 체외성숙에 관한 추가적인 실험이 필요할 것으로 생각되나, gBS, gFF 및 FSH 첨가가 성숙 효율 향상에 도움이 됨을 알 수 있었다.

This study investigated the effects of goat blood serum (gBS), goat follicular fluid (gFF) and gonadotropin (FSH) on the in vitro maturation, fertilization and development of Korean native black goat oocytes. Our results indicate that the gBS combined with FSH treated group showed significantly higher maturation rate than the other groups. Furthermore, blastocyst formation rate was significantly increased in all treated groups, and gBS and gFF combined with FSH treated groups were higher than other groups. However, gene expression levels of BMP15 and GDF9 in COC, both oocyte maturation related genes, remained unaffected after 24 h maturation. The results of the present study indicate that supplementation of the maturation medium with gBS, gFF and FSH is efficacious in improving the in vitro maturation, fertilization and development of Korea native black goat oocytes.

Keywords

References

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