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자료유형
학술저널
저자정보
최선호 (농촌진흥청 축산기술연구소) 양병철 (농촌진흥청 축산기술연구소) 김일화 (농촌진흥청 축산기술연구소) 손동수 (농촌진흥청 축산기술연구소) 이광원 (농촌진흥청 축산기술연구소) 이동원 (농촌진흥청 축산기술연구소)
저널정보
한국동물번식학회 한국수정란이식학회지 한국수정란이식학회지 제11권 제1호
발행연도
1996.1
수록면
7 - 14 (8page)

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The object of this study was to evaluate the effect of uterine epithelial cells on development of Korean native cattle(KNC) oocytes fertilized in vitro. Qocytes were collected from ovaries of slaughtered Korean Native Cows and matured in TCM199 with granulosa cells supplemented with 10% FBS, 5$\mu$g/ml FSH, 10 JU/ml hCG, and 1$\mu$g/ml estradiol-17$\beta$ for 24 hrs. For co-culture of in vitro development of fertilized ova, oviductal epithelial cells (l$\times$l0˚cells /ml) obtained from slaughtered cow and uterine epithelial cells(1$\times$10˚cells /ml) flushed from the superovulated holstein on Day 7 were incubated in 39$^{\circ}C$, 5% $CO_2$, 95% air. Frozen-thawed KNC sperm was capacitated with BO(Brackett & Oliphant, 1975) medium supplemented with 10mM, 5mM-caffein. Matured oocytes were inseminated for 20 hrs. And then fertilized oocytes were washed with culture medium and transferred to oviductal epithelial cells for in vitro development and three days later a portion of embryos were transferred to uterine epithelial cells. Stastical methods of developmental rates on KNC-IVF oocytes was ANOVA-test. Developmental rates of KNC-IVF oocytes was significant higher(P<0.01) when co-cul-tured with uterine epithelial cells(25.2%) than oviductal epithelial cells. Blatocyst cul-tured for 7 to 9 days were frozen by automatic freezer with 1.4M glycerol-PBS. Survival rates of blastocyst was 40.0%. Fourteen frozen-thawed blastocysts were transferred to five holstein heifers on day 7 after natural estrus. Three recipients were observed twin and one recipient was single by ultra-sound systems on days 45 after embryo transfer.

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