Effect of Production In Vitro Embryo using Boar Frozen Semen

돼지 동결 정액을 이용한 체외 수정란 생산 효율

  • Cho, Sang-Rae (Animal Genetic Resources Station, National Institute of Animal Science, RDA) ;
  • Kim, Hyun-Jong (Animal Genetic Resources Station, National Institute of Animal Science, RDA) ;
  • Choe, Chang-Yong (Animal Genetic Resources Station, National Institute of Animal Science, RDA) ;
  • Son, Dong-Soo (Animal Genetic Resources Station, National Institute of Animal Science, RDA) ;
  • Choi, Sun-Ho (Animal Genetic Resources Station, National Institute of Animal Science, RDA) ;
  • Son, Jun-Kyu (Animal Genetic Resources Station, National Institute of Animal Science, RDA) ;
  • Kim, Sung-Jae (Animal Genetic Resources Station, National Institute of Animal Science, RDA) ;
  • Kim, Jae-Bum (Animal Genetic Resources Station, National Institute of Animal Science, RDA) ;
  • Han, Man-Hye (Animal Genetic Resources Station, National Institute of Animal Science, RDA) ;
  • Jin, Hyun-Ju (Animal Genetic Resources Station, National Institute of Animal Science, RDA)
  • 조상래 (농촌진흥청 국립축산과학원 가축유전자원시험장) ;
  • 김현종 (농촌진흥청 국립축산과학원 가축유전자원시험장) ;
  • 최창용 (농촌진흥청 국립축산과학원 가축유전자원시험장) ;
  • 손동수 (농촌진흥청 국립축산과학원 가축유전자원시험장) ;
  • 최선호 (농촌진흥청 국립축산과학원 가축유전자원시험장) ;
  • 손준규 (농촌진흥청 국립축산과학원 가축유전자원시험장) ;
  • 김성재 (농촌진흥청 국립축산과학원 가축유전자원시험장) ;
  • 김재범 (농촌진흥청 국립축산과학원 가축유전자원시험장) ;
  • 한만희 (농촌진흥청 국립축산과학원 가축유전자원시험장) ;
  • 진현주 (농촌진흥청 국립축산과학원 가축유전자원시험장)
  • Published : 2009.09.30

Abstract

This study was carried out to investigate the effective genetic resources preservation system using the frozen boar semen. The porcine oocytes were matured for 44 hours in NCSU-23 medium with or without 10% Porcine Follicle Fluid (PFF), 0.5 ${\mu}g/ml$ porcine FSH, 0.5 ${\mu}g/ml$ equine LH, 1.0 ${\mu}g/ml$ 17 $\beta$-estradiol ($E_2$) and 10 ng/ml Epidermal Growth Factor (EGF) under mineral oil at $38.5^{\circ}C$ in humidified atmosphere of 5% $CO_2$ in air. After 44 h of culture, the oocytes were inseminated with frozen-thawed semen and fresh semen prepared with mTBM medium for 6 h. Later, set of 50 presumptive zygotes were transferred into 4-well dish (500 ${\mu}l$) of IVC medium. for embryos freezing, slow-freezing and vitrification methods were used as a cryopreservation. Differences among treatments were analyzed using General Linear Model Procedure by SAS Package (version 6.12) differences were considered significant when p<0.05. Following IVF and IVC, the rates of cleavage and blastocysts formation were significantly higher (p<0.05) in hormone supplemented group than that of hormone-free group (25.7 vs, 12.1). The development rates to cleavage and blastocysts were significantly higher in PZM-5 group than NCSU-23 group (60.3%, 46.6% vs 27.4%, 11.1%). Further improvement was achieved when PZM-5 was supplemented with FBS. Cleavage rates was significantly higher in fresh semen source group than frozen semen (66.7% vs 43.7%). However in blastocysts rates was similar two groups. Post-thaw survival rates of embryos were 1.2% and 2.2% in slow-frezing and vitrification groups, respectively. The results of our study suggest that it is still possible to improve the culture conditions and boar semen cryopreservation for enhance reproductive technology and animal genetic resources conservation.

Keywords

References

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