한국수정란이식학회지 (Journal of Embryo Transfer)

  • 제23권1호
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  • Pages.43-49
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  • 2008
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  • 2508-755X(pISSN)
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  • 2288-0178(eISSN)
한국수정란이식학회 (The Korean Society of Embryo Transfer)
권호 표지

한우 체외 수정란 및 성 감별 수정란 이식에 의한 송아지 생산

Production of Calves Following Transfer of Sexed Hanwoo Embryos and Hanwoo Embryos Cultured In Vitro

  • 민찬식 (경상남도 농업기술원) ;
  • 송상현 (경상대학교 농업생명과학연구원) ;
  • 손귀동 (경상대학교 응용생명과학부) ;
  • 정우재 (경상대학교 응용생명과학부) ;
  • 노치원 (경상남도 농업기술원) ;
  • 강양수 (경상남도 농업기술원) ;
  • 박충생 (경상대학교 응용생명과학부) ;
  • 공일근 (경상대학교 농업생명과학연구원)
  • Min, Chan-Sik (Gyengsangnamdo Agriculture Research & Extension Services) ;
  • Song, Sang-Hyun (Institute of Agriculture & Life Sciences, Gyeongsang National University) ;
  • Song, Gwi-Dong (Division of Applied Life Science (BK21), Graduate School of Gyeongsang National University) ;
  • Chung, Woo-Jae (Division of Applied Life Science (BK21), Graduate School of Gyeongsang National University) ;
  • Rho, Chi-Won (Gyengsangnamdo Agriculture Research & Extension Services) ;
  • Kang, Yang-Soo (Gyengsangnamdo Agriculture Research & Extension Services) ;
  • Park, Choong-Saeng (Division of Applied Life Science (BK21), Graduate School of Gyeongsang National University) ;
  • Kong, Il-Keun (Institute of Agriculture & Life Sciences, Gyeongsang National University)
  • 발행 : 2008.03.31
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초록

본 연구는 한우 체외 수정란의 성 감별과 신선란, 동결란 및 성 감별 수정란을 이식한 후 수태율, 분만율과 유산율, 생시 체중, 임신 기간을 조사하기 위하여 수행하였다 Aspiration과 punching법으로 biopsied한 수정을 24시간 배양 후 생존율은 각각 80.0%와 90.0%로 유의적인(p>0.05) 차이는 없었다. 수정란을 성 감별한 결과, 웅성 수정란과 자성 수정란의 비율은 각각 42.1%와 52.6%였으며, 5.3%는 수정란의 성을 판정하지 못하였다. hCG를 처리한 수란우의 수태율은 46.4%로서 무처리구(38.5%)에 비하여 높은 경향이었으나, 처리구간의 유의적인 차이는 없었다. 신선란과 동결란을 수정란 이식 후 수태율은 각각 41.3와 35.0%로서 유의적인 차이는 없었다. 성 감별된 수정란과 성 감별하지 않은 체외 수정란 이식 후 수태율은 각각 27.5와 42.1%로 유의적인 차이는 나타나지 않았다. 성 감별 된 수정란과 성 감별하지 않은 체외 수정란 유래 송아지의 분만율은 각각 85.0와 87.0%이었으며, 유산율은 각각 15.2와 13.3%로서 분만율과 유산율은 유의적인 차이는 없었다. 성 감별된 수정란과 성 감별하지 않은 체외 수정란 유래 송아지의 임신 기간은 각각 281.3일(female), 283.0일(male)과 288.2일(female), 282.3일(male)이었으며, 생시 체중은 각각 23.6(female), 24.6(남)과 25.0(female), 23.8 kg(male)로 유의적인 차이는 없었다. hCG 처리한 수란우는 한우 수정란 이식 후 수태율 개선 효과는 있는 것으로 판단된다. 성 감별 수정란 이식에 의해 송아지는 생산되었으나, 수정란의 biopsy 방법, 수정란 이식 후 수태율 개선과 같은 송아지 생산 효율을 개선해야 할 것으로 사료된다. 수정란 이식의 산업화가 정착하기 위해서는 동결란과 신선란 이식 후 수태율의 개선에 대한 노력이 필요할 것으로 사료된다.

This study was carried out to examine the efficiency of biopsy methods, and the pregnancy rate, calving and abortion rates, gestation length and birth weight of Hanwoo calves following transfer of fresh, frozen and sexed Hanwoo embryos produced in vitro. The survivability of biopsied embryos was 80.0 and 90.0% using aspiration and punching methods at 24 h after culturing, respectively. The ratios of male and female embryos were 42.1 and 52.6%, respectively, and the percentage of sex unidentified was 5.3%. Pregnancy rates was not significantly different between hCG and control group (46.4 vs. 38.5%), fresh and frozen embryos (41.3 vs. 35.0%), and sexed and IVP embryos (27.5 vs. 41.2%) (p>0.05). Calving and abortion rates of IVP and sexed embryos were not significantly different in calving (85.0 vs. 87.0%) and in abortion (15.2 vs. 13.3%) (p<0.05). Gestation length of IVP and sexed calves were 281.3 and 288.2 days in female and 283.0 and 282.3 days in male, and the birth weight of IVP and sexed calves were 23.6 and 25.0 kg in female and 24.6 and 23.8 kg in male, respectively. There were no difference in gestation length and birth weight between IVP embryos and sexed embryos (p>0.05). Administration of hCG to recipients did not improve the pregnancy rate following transfer of Hanwoo embryos produced in vitro and sexed embryos. Although the production of calves derived from sexed Hanweoo embryos cultured in vitro can be obtained, the efficiency of sexed calves production need to be improved in biopsy methods and pregnancy rate. Further study should be focused on the improvement of pregnancy rates for commercial application of embryo transfer.

키워드

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