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논문 기본 정보

자료유형
학술저널
저자정보
Yoon J. T. (Department of Animal Life and Resources, Hankyong Genometek Co., Department of Animal Life and Resourcesm Hankyong National University) Choi E. J. (Hankyong Genometek Co.) Lee H. J. (Hankyong Genometek Co.) Kim C. H. (Graduate School of Bio- & Information Technology) Min K. S. (Graduate School of Bio- & Information Technology) Hwang S. S. (Institute of Genetic Engineering, Hankyong National University)
저널정보
한국동물번식학회 한국동물번식학회지 한국동물번식학회지 제29권 제2호
발행연도
2005.1
수록면
121 - 125 (5page)

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초록· 키워드

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The present study was performed to determine the ability of canine oocytes to achieve nuclear maturation according to oocyte diameter and different culture environments. All of the collected oocytes were classified by grade 1 to 3 and by their diameters such as $<100{\mu}m,\;<100{\mu}m\;to\;<110{\mu}m,\;<110{\mu}m,\;to\;<120{\mu}m,\;>120{\mu}m,$. Oocytes were cultured in culture medium supplemented with $10\%\;FBS,\;0.4\%\;BSA,\;10\%$ porcine follicular fluid (pFF), $10\%$ canine serum (CS), or $10\%$ canine estrus serum (CES). The mean number of oocytes recovered from estrus status ovaries was significantly higher than that of anestrus status ovaries (p<0.01). The maturation rate of grade 1 oocytes $(>120{\mu}m)$ was significantly higher than that of the other groups (p<0.05). Nuclear maturation to MI to MII in diameter of $>110{\mu}m$ groups was significantly higher than that in $<100{\mu}m$ group (p<0.05). The oocytes cultured in $10\%$ FBS­supplemented group were significantly higher rate of GVBD compared to the other supplemented groups (p<0.05), and oocytes maturation to MI to MII in $10\%$ FBS-, $0.4\%$ BSA-, and $10\%$ pFF-supplemented groups were significantly higher than those in $10\%$ CS-supplemented group (p<0.05). Based on these results, the estrus status and the size of oocyte affect positively to improve nuclear maturation of canine immature oocytes in vitro. Among several protein sources, porcine follicular fluid was the most effective supplementation to culture medium to achieve higher in vitro maturation rate.

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