지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
In order to determine the ovarian cycle of Asian Toad, Bufo gargarizans, the developmental stage based on the gonadosomatic index (GSI), size of follicle oocytes in ovary and vitellogenesis for adult females were investigated all around the year. The weight of ovary and GSI were the lowest from April, and all follicle oocytes exist in the pre-vitellogenic form, indicating that the vitellogenesis was suspended. The follicle oocytes in early-vitellogenic stage appeared in ovary during may when the weight of ovary and GSI start to increased, and the follicle oocytes in midvitellogenic and pre-vitellogenic stages existed during June and the weight of ovary and GSI also increased. This indicates that vitellogenesis has been carried out actively during this period. The follicle oocytes in mid-vitellogenic stage and late-vitellogenic stage when the vitellogenesis was also completed existed on September. Post-vitellogenic follicle oocytes after vitellogenesis started to appear from October and rapidly increased from December in hibernation. The full grown follicle oocytes existed during February, indicating the ovarian cycle that all follicle oocytes in ovary are developed separately, not synchronized, during the growing period of follicle oocytes and the postvitellogenic follicle oocytes are maintained the ovulation period.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Bentley PJ. / 1982 / Comparative Vertebrate Endocrinology, 2nd Ed / Cambridge University Press : 338 ~ 365
Bush FM. / 1963 / Effects of light and temperature on the gross composition of the toad Bufo fowleri / J. Exp. Zool 153 : 1 ~ 13
Degani G. / 1997 / Ovarian Steroid Levels in Salamadra salamadra infraimmaculata during the Reproductive Cycle / Gen. Comp. Endocrinol 106 : 356 ~ 360
Delgado MJ. / 1989 / Seasonal cycles in testicular activity in the frog / Rana perezi. Gen. Comp. Endocrinol 73 : 1 ~ 11
Dumont JN. / 1972 / Oogenesis in Xenopus laevis (Daudin), 1. Stages of the oocyte development in laboratory maintained animals / J. Morph 136 : 153 ~ 180
Bush FM. / 1963 / Effects of light and temperature on the gross composition of the toad Bufo fowleri / J. Exp. Zool 153 : 1 ~ 13
Degani G. / 1997 / Ovarian Steroid Levels in Salamadra salamadra infraimmaculata during the Reproductive Cycle / Gen. Comp. Endocrinol 106 : 356 ~ 360
Delgado MJ. / 1989 / Seasonal cycles in testicular activity in the frog / Rana perezi. Gen. Comp. Endocrinol 73 : 1 ~ 11
Dumont JN. / 1972 / Oogenesis in Xenopus laevis (Daudin), 1. Stages of the oocyte development in laboratory maintained animals / J. Morph 136 : 153 ~ 180
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