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논문 기본 정보

자료유형
학술저널
저자정보
오하식 (경상대학교 농과대학) 박충생 (경상대학교 농과대학)
저널정보
한국동물번식학회 한국동물번식학회지 한국동물번식학회지 제10권 제1호
발행연도
1986.1
수록면
76 - 82 (7page)

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초록· 키워드

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This experiment was conducted to determine the effects of trophoblastic vesicles (TV) and estradiol-17$\beta$ on the development in vitro of rabbit embryos. Thirty matured female rabbits were treated with PMSG followed by HCG injection and mating. Embryos were recovered with D-PBS (Dulbecco's Phosphate Buffered Saline) after superovulation, and normally developed to two-to four-cell embryos were used in the subsequent in vitro culture. Basal medium was Medium-199 su, pp.emented with 1.5% bovine serum albumin. Embryo on Day 5 after mating (Day 0) was cut into two or three pieces to remove the embryonic disc. Each piece of tissue was cultured for 24 hours at 37$^{\circ}C$ in 0.5 mlMedium-199 in 5% CO2. During culture, peices of trophoblastic tissue changed into spherical vesicles which were used for co-culture. These spheres were called trophoblstic vesicles. Two-to four-cell embryos were cultured for 4 days in Medium-199 in the absence or presence of trophoblastic vesicle, and two-to four-cell embryos cultured with varing concentration (0, 0.1, 1, 10ng/ml) of estradiol-17$\beta$ for 4 dyas. Culture vessels used were watch glass for coculture with trophoblastic vesicles and micortube for estradiol-17$\beta$ infusion. Compared with the Medium-199 alone as basal culture medium, more blastocysts (46.7% vs 15.1%; P<0.01) and morulae (84.4% vs 56.6%; P<0.05) were developed in the co-culture with trophoblastic vesicles. Estradiol-17$\beta$ infused in culture medium was not effective for embryo development to blastocysts (78.3% in control, 50.0% in 0.1ng/ml, 61.5% in 1ng/ml and 64.4% in 10ng/ml) and also to morulae (91.3% in control, 84.2% in 0.1ng/ml, 92.3% in 1ng/ml and 91.1% in 10ng/ml). Compared with the watch glass culture mehotd, more (P<0.01) blastocysts were developed in microtube culture (78.3% vs 56.6%) and more (P<0.01) morulae in microtube culture (91.3% vs 56.6%).

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