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논문 기본 정보

자료유형
학술저널
저자정보
서태광 (경북대학교 농과대학) 박항균 (경북대학교 농과대학)
저널정보
한국동물번식학회 한국동물번식학회지 한국동물번식학회지 제14권 제4호
발행연도
1990.1
수록면
253 - 261 (9page)

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This study was carried out to investigate the factors affecting development in vitro of follicular oocytes fertilized in vitro in Korean Native Cattle. The bovine ovaries were obtained at a slaughter house and the follicular oocytes were recovered by aspirating the follicular fluid from the visible follciles of 3~6mm. The bovine oocytes were matured in vitro for 20~24 hours in TCM0-199 containing 10% FCS and hormones (0.02AU/ml FSH, 10$\mu\textrm{g}$/ml LH, 1$\mu\textrm{g}$/ml estradiol-17$\beta$). The matured oocytes were fertilized in vitro using Percoll-separated frozen-thawed spermatozoa in BO solution containing caffeine(5mM) and heparin(10$\mu\textrm{g}$/ml). Twenty-four hours after insemination, the oocytes were cultured in vitro and then the effects of cumulus cell layer, co-culture with cumulus cells, bovine oviduct epithelial cells from ampulla or isthmus on development of ova, were studied. The results obtained are summarized as follows : 1. The in vitro development degree of oocytes attached with compact and dense layered cumulus cells was higher than that with 3~4 layered cumulus cells to be 9~16cells(P<0.01). 2. When the in vitro fertilized oocytes were co-cultured with bovine oviduct epithelial cells or cumulus cells, the development rate to be morula was 20.2% and 12.7%, respectively and the rates were higher than that of control, 2.1%(P<0.05). 3. The development rate to be morula was 15.8% and 23.8%, respectively when the in vitro fertilized oocytes were co-cultured with bovine oviduct epithelial cells from ampulla or isthmus, and the rates were higher than that of control, 0%(P<0.05%).

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