한국수정란이식학회지 (Journal of Embryo Transfer)

  • 제19권3호
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  • Pages.257-264
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  • 2004
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  • 2508-755X(pISSN)
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  • 2288-0178(eISSN)
한국수정란이식학회 (The Korean Society of Embryo Transfer)
권호 표지

재래돼지에서 수정란의 회수 및 동결보존에 관한 연구

Studies on Recovery and Cryopreservation of Embryos in Korean Native Swine

  • 발행 : 2004.12.01
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⟨ 이전 논문 다음 논문 ⟩

초록

멸종위험이 큰 우리나라 재래돼지를 유전자원으로서 안전하게 보존하고 유전적 다양성을 유지하기 위한 수단으로 수정란을 채취하여 동결보존하기 위해서 미경산 재래돼지에서 과배란 유기를 위한 적정 호르몬의 수준과 수정란의 회수 및 동결보존 방법을 확립하고자 수행한 결과는 다음과 같다. 1. hCG 500IU와 PMSG를 500, 750, 1,000IU 및 hCG 750IU와 PMSG 1,000IU를 각각 투여한 재래돼지의 배란황체와 미배란난포의 수는 각각 12.4, 13.6, 30.0 및 23.3개로 PMSG 1,000IU와 hCG 500IU를 투여한 재래돼지가 다른 용량의 처리돼지보다 난소반응이 양호하였으나 유의적인 차이는 없었으며, 배란황체수에 대한 수정란 회수율은 59.4-79.2％ 수준이었다. 2. 과배란처리된 공란돈에서 수정후 4일에 회수된 수정란의 발육단계는 상실기의 수정란이 수정후 5일보다 유의적으로 많이 회수되었으며(P<0.01), 수정후 5일에 회수된 배 반포기의 수정란을 수정후 4일보다 유의적으로 많이 회수되었다(P<0.05). 3. 확장배반포기 수정란을 1.4M glycerol의 항동 해제를 이용하여 관행의 완만동결법으로 동결한 처리에서 생존율은 25.3％였다.

For safe preservation of Korean Native Pigs (KNP) as an animal genetic resources and a means to maintain the genetic diversity, we performed to investigate the optimal hormone levels for superovulated gilts and establish the cryopresevation methods of embryos. The reults were as follows; 1. The number of ovulated corpus luteums (CL) and follicles were 12.4, 13.6, 30.0 or 23.3 in hCG 500IU and PMSG 500, 750, 1,000IU or hCG 750IU and PMSG 1,000IU respectively. In the case of PMSG 1,000IU와 hCG 500IU, there showed highest number but were no significance among others. The recovery rate of embryos by the ovulated CL were 59.4-79.2％. 2. The morula stage embryos recovered on Day 4 after insemination were significantly higher than Day 5 (P<0.01), but blastocyst stage embryos recovered on Day 5 were sinificantly higher than Day 4 (P<0.05). 3. The survival rate of expanded blastocyst were 23.5％ in conventional freezing with 1.4 M glycerol.

키워드

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