Reproductive and Developmental Biology

  • 제29권1호
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  • Pages.37-41
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  • 2005
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  • 1738-2432(pISSN)
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  • 2288-0151(eISSN)
한국동물번식학회 (The Korean Society of Animal Reproduction)
권호 표지

난소의 형태와 배양 용기가 한우 체외수정란의 발달과 세포수에 미치는 영향

Effects of the Morphology of Ovaries and Vessels for In Vitro Maturation on the Development and Cell Number of Korean Native Cow Embryos

  • 박용수 (대구대학교 식품생명공학부) ;
  • 박흠대 (대구대학교 식품생명공학부)
  • Park Y. S. (Division of Food and Biotechnology, Daegu University) ;
  • Park H. D. (Division of Food and Biotechnology, Daegu University)
  • 발행 : 2005.03.01
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초록

본 연구는 한우 수정란의 체외생산에 있어서 효율과 품질의 향상을 위해서, 미성숙 난포란을 회수하는 난소의 형태와 배양 용기로서 straw의 효과를 검토하였다. 난소의 형태에 따른 수정율은 전 군에서 70.3∼84.1%로서 비슷한 경향이었다. 8세포기 및 배반포기 발달율은 황체와 난포가 모두 존재하지 않는 대조군이 가장 높았다. 배반포의 inner cell mass(ICM), trophectoderm(TE), total cell number(TCN) 및 ICM/TCN 비율은 낭종군과 퇴행황체군이 다른군에 비하여 높은 경향이었다. 체외성숙에 이용하는 배양용기에 따른 수정율은 0.5 ㎖ straw 군이, 8세포기 발달율은 대조군이 가장 높았으나, 배반포기 발달율은 23.1∼30.7％로서 각 군 간에 비슷한 경향이었다. 한편 각각의 배양 용기에서 유래된 배반포의 ICM, TE, TCN 및 ICM/TCN 비율은 유사한 경향이었다.

The aim of this study was to improve efficiency and quality of the production of Korean Native Cow embryos. We examined effects of ovarian morphology and maturation vessel on the development and cell number of blastocysts. The development rates to the 2-cell embryos from oocytes collected from the ovaries of different morphological statues were similar ranging between 70.3 and 84.1%. The development rate to the 8 cell- and blastocyst-stage embryos was the highest in the group without both corpus luteum (CL) and follicle. The inner cell mass (ICM), trophectoderm (TE) and total cell number (TCN) were significantly higher in the groups of follicular cyst and regressive CL than other treatment groups, and the same pattern was observed in the ICM/TCN ratio. The development rate to the 2-cell stage was significantly higher in 0.5-㎖ straw group than 0.25-㎖ straw group. However, the development rates to the blastocyst stage were similar between the dish and the straw group. There were no differences in the number of ICM and TE cells, TCN and ICM/TCN ratio of blastocysts from oocytes matured in the different vessels.

키워드

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