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난자의 형태, 번식주기, 배양시간 및 활성화 처리가 개 난자의 체외수정후 발생에 미치는 영향에 관한 연구
Effects of Morphology, Reproductive Cycle, Incubation Time and Activation of Oocytes on Developmental Rate of Embryos Fertilized in vitro

이동수   (충남대학교 수의과대학UU0001302  ); 김상근   (충남대학교 수의과대학UU0001302  );
  • 초록

    본 연구는 소형 개의 불임 해결과 체외수정란을 생산하기 위한 방안의 하나로써 난자의 형태, 번식주기, 배양시간 및 활성화 처리가 난포란의 체외성숙 및 체외발생에 미치는 영향을 조사하였다. 1. 신선, salt 및 4 $^{\circ}C$ 에 보존한 난소로부터 채취한 난구세포부착 난자와 나화 난자로 각각 체외수정시켰을 때 16세포기로의 발생율은 14.3%, 5.0% 및 7.5%, 2.8%, 5.7% 및 0.0%로써 난구세포 부착난자군의 체외발생율이 나화 난자군에 비해 높게 나타났다. 2. 발정주기를 inactive, follicular, luteal 단계로 구분하여 채취한 난포란을 각각 체외배양시켰을 때 GV 및 MII로의 발생율은 11.3%와 9.4%, 50.7%와 26.7%, 16.9%와 13.8%였고, 16세포기로의 체외발생율은 0.0%, 10.7%, 1.5%였다. 3 신선한 난구세포 부착 난자를 각각 24, 32, 48시간 성숙배양 후 체외수정시켰을 때 분할율은 8.6%, 15.8%, 23.5%였으며, 16세포기로의 체외발생율은 각각 0.0%, 5.3%, 11.8%로써 48시간 배양군이 가장 높은 발생율을 나타냈다. 4. 활성화 처리 및 비활성화 처리 난자를 각각 체외수정시켰을 때 분할율은 각각 42.5%, 22.2%였고 16세포기로의 체외발생율은 각각 15.0%, 6.7%로써 활성화 처리 난자군이 비활성처리 난자군에 비해 높은 발생율을 나타냈다.


    The study was carried out to investigate the effects of morphology, reproductive cycle, incubation time and activation of oocytes in vitro maturation of canine oocytes and development of canine IVM/IVF embryos. The results were summarized as follows: 1. The developmental rates to 16 cells of fresh, salts and 4 $^{\circ}C$ -stored oocytes with and without cumulus cells were 14.3%, 5.0% and 7.5%, 2.8% and 5.7%, 0.0%, respectively. The rate of oocytes with cumulus cells(5.7%~14.3%) was higher than that of denuded oocytes(0.0%~5.0%). 2. The developmental rate to If cells of in vitro cultured oocytes recovered from ovaries collected at different stages of the reproductive cycle were 0.0%, 10.7%, 1.5%, respectively. 3. The developmental rate to 16 cells of fresh oocytes with cumulus cell cultured for 24, 32 and 48 hrs in $CO_2$ incubator were 0.0%, 5.3%, 11.8%, respectively. The rate of oocytes cultured for 48 hrs was higher than that oocytes cultured for 24 and 32 hrs. 4. The development to If cells treated activation and non-activation oocytes were 15.0%, 6.7%, respectively. The rate of oocytes treated activation was higher than that oocyte treat non-activation.


  • 주제어

    dogs .   morphology .   reproductive cycle .   incubation time .   activation of oocytes .   developmental rate.  

  • 참고문헌 (21)

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  • 이 논문을 인용한 문헌 (1)

    1. Kim, Yong-Jun ; Park, Hoon ; Lee, Hae-Lee ; Shin, Dong-Su ; Jo, Sung-Woo ; Kim, Yong-Su ; Kim, Sue-Hee 2008. "Results of Embryo Transfer with Hanwoo Embryos Produced In-Vivo or In-Vitro to Holstein Cows as Recipients" Journal of embryo transfer = 한국수정란이식학회지, 23(3): 167~175     

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