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.
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This study was undertaken to understand development stage of ovary and changes of hormone concentrations in the Israeli carp, Cyprinus carpio from Ferbruary to May.
The results obtained in these experiments are as follows:
1. Serum LH levels began to increase sharply in March, coinciding with the onset of rapid ovarian development.
2. LH levels were well correlated with changes in gonadosomatic index.
3. Dramatic increase in gonadosomatic index occured during the months of March.
4. Ripe stage(Stage Ⅶ) rapidly increase in March.
5. Early perinucleolus oocyte rapidly develop into late perinucleolus oocytes in March.
6. The vitellogenic phase begins as these late perinucleolus oocytes become transformed into early maturing oocytes through the accumulation of yolk.
7. The cytoplasm completely fills with yolk as oocytes reach the late maturing stage.
8. Changes in the microscopic appearances of the ovaries were well correlated with changes in both gonadosomatic index and macroscopic appearance.
9. It is concluded from these observations that LH plays a major role in sexual maturating of the Israeli carp.
The results obtained in these experiments are as follows:
1. Serum LH levels began to increase sharply in March, coinciding with the onset of rapid ovarian development.
2. LH levels were well correlated with changes in gonadosomatic index.
3. Dramatic increase in gonadosomatic index occured during the months of March.
4. Ripe stage(Stage Ⅶ) rapidly increase in March.
5. Early perinucleolus oocyte rapidly develop into late perinucleolus oocytes in March.
6. The vitellogenic phase begins as these late perinucleolus oocytes become transformed into early maturing oocytes through the accumulation of yolk.
7. The cytoplasm completely fills with yolk as oocytes reach the late maturing stage.
8. Changes in the microscopic appearances of the ovaries were well correlated with changes in both gonadosomatic index and macroscopic appearance.
9. It is concluded from these observations that LH plays a major role in sexual maturating of the Israeli carp.
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ABSTRACT
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材料 및 方法
結果 및 考察
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