各種ホルモン投与法により誘起された養成トラフグの成熟，排卵過程
書誌事項
- タイトル別名
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- Induction of Ovarian Maturation and Ovulation in Cultured Tiger Puffer Takifugu rubripes by Different Hormonal Treatments.
- カクシュ ホルモン トウヨホウ ニ ヨリ ユウキサレタ ヨウセイ トラフグ ノ
この論文をさがす
抄録
The changes in ovarian development during final oocyte maturation and ovulation induced by different hormonal treatments in cultured tiger puffer Takifugu rubripes were monitored by ovarian biopsy. Single implantation of LHRH-a (des-G1y10 [D-Ala6] -LHRH ethylamide) cholesterol pellet (LHRH-a 400, μg/kg) or osmotic pump (LHRH-a 50 μg/day/fish for 2 weeks) successfully induced ovarian maturation and ovulation in three-year-old cultured tiger puffer with yolk-laden oocytes. Repeated injections of HCG (500 IU/kg) combined with chum salmon pituitary (SP) homogenate (7 mg/kg) every 5 days also induced ovarian maturation and ovulation. Overall, the mean time span from the beginning of hormonal treatment of fish with initial oocyte size between 800 and 900 μm in diameter to ovulation was 18.8 days. In contrast, the mean time span in fish with initial oocyte size over 900μm in diameter was 10.6 days. Oocytes in the control fish receiving no hormones did not develop and became atretic. The results obtained indicate that a single implantation of LHRH-a cholesterol pellet is efficient for inducing maturation and ovulation of cultured tiger puffer. Also, the monitoring of initial oocyte diameter by ovarian biopsy was found to be important for achieving synchronous spawning of several fish.
収録刊行物
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- 水産増殖
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水産増殖 45 (1), 67-73, 1997
日本水産増殖学会
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詳細情報 詳細情報について
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- CRID
- 1390001204715223424
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- NII論文ID
- 10004771643
- 10016514058
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- NII書誌ID
- AN00124667
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- COI
- 1:CAS:528:DyaK2sXisFCnur4%3D
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- ISSN
- 21850194
- 03714217
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- NDL書誌ID
- 4161530
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可