Journal of Embryo Transfer (한국수정란이식학회지)

The Korean Society of Embryo Transfer (한국수정란이식학회)
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Effects of the Addition of Amino Acids and FBS on the In Vitro Development of Korean Native Cow IVP Embryos

아미노산과 FBS의 첨가가 한우난자의 체외발달에 미치는 영향

  • Park, Heum-Dae (Department of Biotechnology, Daeju University) ;
  • Park, Hyang (Department of Biotechnology, Daeju University) ;
  • Lee, Sang-Jin (Department of Animal Science, Sahm Yook University) ;
  • Kim, Jae-Myung (Infertility Medical Center of CHA General Hospital, Pochon CHA University)
  • 박흠대 (대구대학교 공과대학 생명공학과) ;
  • 박향 (대구대학교 공과대학 생명공학과) ;
  • 이상진 (삼육 의명대학교 동물자원학과) ;
  • 김재명 (포천중문대학의과대학교 생리학교실)
  • Published : 2002.12.01
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Abstract

These studies were carried out to investigate the effects of the addition of amino acids and FBS as source of exogenous nitrogen fixation added to medium on in vitro production of blastocyst derived from bovine follicular oocytes. The base medium was TCM-199 solution for in vitro maturation(IVM) of bovine follicular oocytes and Fer-TALP solution for in vitro fertilization(IVF) and YS solution for in vitro culture(IVC). IVC used the fertilized oocytes of 24-hr culture (day 1) after IVF. Rmbryos were cultured in drop-culture that contained 25 embryos per 10 ${mu}ell$. The results obtained are as follows: 1 The developmental rates of fertilized oocytes to blastocyst that developed from YS solution with NEAA derived from MEM alone were higher than those of YS solution without NEAA. 2. The developmental rates of fertilized oocytes to blastocyst that developed from YS solution with EAA derived RPMI 1640 alone were significantly higher than those of YS solution without EAA (p<0.05). 3. When added to EAA on day 5 after NEAA supplementation on day 1, the developmental rates of hatched blastocyst and blastocyst to hatched blastocyst were improved. 4. When removed to EAA on day 3, day 4 and day 5 from medium after NEAA and EAA supplementation on day 1. the developmental rates of blastocyst to hatched blastocyst were reduced. 5. When added to FBS as source of exogenous nitrogen fixation, the developmental rates of blastocyst and hatched blastocyst that developed from the later culture higher(day 5) than those of the early culture.

본 연구는 체외에서 소 난포란유래의 배반포 생산에 있어서 배지 내에 첨가하는 외인성 고정질소 원으로써 아미노산과 FBS의 첨가효과를 검토하였다. 소 난포란의 체외성숙은 TCM-l99용액, 체외 수정은 Fer-TALP용액으로 행하였으며, 체외수정후 24시간째(day 1)의 수정난자를 체외배양에 제공하였다. 체외배양용 기초배지는 YS용액, 기초 배양법은 25개 난자/10 ${\mu}\ell$ 배지의 단순.미소적배양법을 이용하였다. 본 연구의 결과를 요약하면 다음과 같다. 1. 체외 수정란의 배양에 있어서 비필수 아미노산(MEM 유래) 첨가가 무첨가군보다 높은 배반포 발달율을 나타냈다. 2. 체외 수정란의 배양에 있어서 필수 아미노산(RPMI 1640 유래) 첨가가 무첨가군보다 유의하게 높은 배반포 발달율을 나타냈다. (P<0.05) 3. Day 1에 비 필수 아미노산, day 5에 필수 아미노산을 첨가하였을 경우 부화 배반포로의 발생율 및 배반포로의 부화율을 향상시켰다. 4. Day 1에 비필수.필수 아미노산을 첨가한 후 day 3, day 4, day 5에 각각 필수 아미노산만을 배지로부터 제거 시 배반포의 부화율은 현저하게 낮았다. 5. FBS의 첨가시기는 배양 후기(day 5)에 첨가할 수록 배반포율 또는 부화 배반포율이 유의하게 상승하였다(p<0.05). 이상의 결과에서 소 난포란 유래 배반포의 체외생산에 있어서 배지에 첨가하는 외인성 고정 질소 원들의 첨가에 있어서 첨가시기 및 농도를 조절함으로써 양질의 배반포 생산을 향상시킬 수 있는 것으로 사료된다.

Keywords

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