SEAFDEC/AQDINSTITUTIONAL REPOSITORY
    • English
    • 日本語
    • ไทย
    • Bahasa Indonesia
  • 日本語 
    • English
    • 日本語
    • ไทย
    • Bahasa Indonesia
  • ログイン
アイテム表示 
  •   ホーム
  • 03 SEAFDEC/AQD External Publications
  • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
  • Journal Articles
  • アイテム表示
  •   ホーム
  • 03 SEAFDEC/AQD External Publications
  • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
  • Journal Articles
  • アイテム表示
JavaScript is disabled for your browser. Some features of this site may not work without it.

Induction of sex inversion in juvenile grouper, Epinephelus suillus, (Valenciennes) by injections of 17α-Methyltestosterone

  • Global styles
  • MLA
  • Vancouver
  • Elsevier - Harvard
  • APA
  • Help
Thumbnail
閲覧/開く
Request a copy
日付
1994
著者
Tan-Fermin, Josefa D.
Garcia, LM ORCID
Castillo Jr., Antonio R.
Page views
3,041
主題
aquaculture ASFA
fish culture ASFA
sexual maturity ASFA
sex determination ASFA
sex hormones ASFA
testosterone ASFA
sex reversal ASFA
hermaphroditism ASFA
females ASFA
spermatogenesis ASFA
age ASFA
weight ASFA
steroid hormones AGROVOC
experimentation AGROVOC
groupers AGROVOC
Taxonomic term
Epinephelus suillus GBIF
Metadata
アイテムの詳細レコードを表示する

Share 
 
抄録
Four groups of two-year old juvenile groupers (Epinephelus suillus), each with 8-9 individuals of mean body weight (BW) 1.2 kg, were treated with 17α-methyltestosterone (MT). MT was injected intramuscularly within the range of 0.5-5.0 mg kg-1 BW every 15 days. Gonadal biopsy and stripping of the abdomen was done every 15 days, the fish being sacrificed after six or twelve injections. Initial controls had immature ovaries containing primary oocytes in lamellae that extended into the central lumen. After six injections, proliferation of stromal and gonial cells were observed in all fish sampled. Regardless of treatment, gonad sections of fish with a minimum BW of 1.2 kg showed degeneration of primary oocytes and the presence of spermatogenic cells. Milt was also present in larger-sized fish (BW: 1.5 kg) given 0, 0.5 and 1.0mg MTkg-1 BW, after such fish had received an accumulated dose of 5 or 12mg MTkg-1 BW. However, gonad sections of smaller-sized fish following these treatments contained only primary oocytes and gonial cells after six (BW: 0.7-1.0kg) or twelve (BW: 0.6-1.3 kg) injections. In contrast, all fish treated with 5 mg MT kg-1 BW had testes in active spermatogenesis after six (BW: 1.2-1.6 kg) or twelve (BW: 0.8 kg) injections. Gonad weight and gonadosomatic index values decreased during consecutive sampling. Induction of female-to-male sex inversion in juvenile E. suillus by MT was probably synergistic with age and size.
URI
http://hdl.handle.net/10862/1465
Suggested Citation
Tan-Fermin, J. D., Garcia, L., & Castillo Jr., A. R. (1994). Induction of sex inversion in juvenile grouper, Epinephelus suillus, (Valenciennes) by injections of 17α-Methyltestosterone. Bulletin of Environmental Contamination and Toxicology, 40(4), 413-420. http://hdl.handle.net/10862/1465
Type
Article
ISSN
0021-5090
Collections
  • Journal Articles [1156]

Related items

Showing items related by title, author, creator and subject.

  • Thumbnail

    How to operate tilapia hatcheries 

    Surtida, Marilyn B. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1998)
  • Thumbnail

    Dietary administration of dehydroepiandrosterone hormone influences sex differentiation of hybrid red tilapia (O. niloticus x O. mossambicus) larvae 

    Mohamed, Asaad H.; Traifalgar, Rex Ferdinand M.; Serrano Jr., Augusto E.; Peralta, Jose P.; Pedroso, Fiona L. (Academic Journals, New York, 2012)
    Effects of a steroid hormone Dehydroepiandrosterone (DHEA) on sex differentiation of hybrid red Tilapia Oreochromis niloticus x O. mossambicus larvae were investigated. Three day-old tilapia larvae were fed diets supplemented ...
  • Thumbnail

    Possible application of mibolerone for induced sex inversion of grouper Epinephelus coioides 

    Quinitio, Gerald F.; Tan-Fermin, Josefa D.; Nagai, Akimasa (Japanese Society of Fisheries Science, 2001)
    Thirty immature juvenile grouper Epinephelus coioides (19-168 g bodyweight, BW) were randomly stocked in four units 6 t tanks to determine if mibolerone can be used to induce sex inversion in groupers. After acclimatization ...

© SEAFDEC/AQD  2022
連絡先 | ご意見をお寄せ下さい
 

 

ブラウズ

リポジトリ全体コミュニティ/コレクション公開日著者タイトル主題このコレクション公開日著者タイトル主題

登録利用者

ログイン登録

統計

View Usage Statistics

© SEAFDEC/AQD  2022
連絡先 | ご意見をお寄せ下さい
 

 

Export citations

Export the current results of the search query as a citation list. Select one of the available citation styles, or add a new one using the "Citations format" option present in the "My account" section.

The list of citations that can be exported is limited to items.

Export citations

Export the current item as a citation. Select one of the available citation styles, or add a new one using the "Citations format" option present in the "My account" section.

Export Citations

DOCUMENT REQUEST NOT AVAILABLE

This publication is still available (in PRINT) and for sale at AQD bookstore. The library is currently restricted to send PDF of publications that are still for sale.

You may contact bookstore@seafdec.org.ph or visit AQD bookstore for orders.

FILE UNDER EMBARGO

This file associated with this publication is currently under embargo. This will be available for download after the embargo date.