PVA, PVP 및 pFF를 첨가한 체외성숙 한정배지가 미성숙 돼지 난포란의 성숙과 배발달에 미치는 영향 = Effects of Development and Viability of Pig Oocytes Matured in Defined Medium Containing PVA, PVP and pFF

국문 초록 (Abstract)

본 연구는 체외 성숙액인 TCM-199 배지를 기초로 무혈청첨가물인 PVA, PVP 및 pFF의 한정배지를 이용하여 돼지 미성숙난자의 체외성숙, 수정 및 배양 후 난자의 수정율과 배발달에 미치는 영향과 나아가 BSA 대체물로서의 이용 가능성을 알아보았다. 1. 무혈청 첨가물을 이용하여 난포란의 체외 성숙을 유기한 결과 PVA, PVP, pFF, BSA의 전체 분할율은 각각 82.4%, 78.6%, 89.4%, 90.0%로 나타났으며, GV, MI-MII

다국어 초록 (Multilingual Abstract)

This study was conducted to develop a serum-free, defined medium of IVM of pig oocytes. The TCM-199 with supplemented with polyvinylalcohol(PVA), polyvinylpyrrollidone(PVP) and porcine follicular fluid(pFF) were used as basal medium. The effects of the these additives on the rates of maturity and development under in-vitro fertilization and in vitro culture were examined and subsequently considered on the possibilities be sustituted for the bovine serum albumin(BSA). Maturation rate of pig oocytes in IVM media containing PVA(82.4％), pFF(89.4％) and BSA(90.0％) were significantly higher(P<0.05) than that of PVP(78.6％). Cleavage rate after IVF of PVP(64％) was significantly lower(P<0.05) than these of PVA(73％), pFF(77％) and BSA(73％) supplements. in vitro development rates to morulae and blastocyst on PVP(54％) were also significantly lower(P<0.05) than these of the supplements of PVA(63％), pFF(69％) and BSA(65％). In comparison of maturation and fertilization rates of pig oocytes in each supplements, the maturity rates of PVA(82.4％), pFF(89.4％) and BSA(90.0％) were significantly lower(P<0.05) than that of PVP(72.4％) and while, the fertilization rates of pFF(87.1％) and BSA(89.1％) were significantly higher(P<0.05) than these of PVA(78.0％) and PVP(70.6％). It may be concluded that PVA and pFF can be substituted far BSA in medium for culturing pig oocytes; however, it may be considered that PVP were limited to for BSA in the in vitro culture of the embryos.

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