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 پایگاه استنادی علوم جهان اسلام (ISC)

پایگاه اطلاعات جهاد دانشگاهی (SID) 

بانک نشریات کشور (مگیران)




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:: Volume 22, Issue 3 (2023) ::
IJFS 2023, 22 Back to browse issues page
Research Article: Effect of 17α-methyl testosterone, tamoxifen, and letrozole on growth performance and sex reversal of rainbow trout (Oncorhynchus mykiss)
A. Irani * , F. Noori
Urmia University , a.irani@urmia.ac.ir
Abstract:   (560 Views)
Sex reversal and producing a monosex population is one of the most preferred growth promotion techniques of rainbow trout culture. Thus, the effects of 17α-methyltestosterone (2 mg/kg), tamoxifen (2, 20, and 100 mg/kg), letrozole (2, 20, and 100 mg/kg), and a combination of tamoxifen (100 mg/kg) and letrozole (100 mg/kg) on growth, masculinization and serum steroid content of rainbow trout were investigated in this research. Ethanol-dissolved chemicals were sprayed on commercial trout diet, and ethanol was evaporated overnight. The fish were fed the treated diet for two months and afterward, they were fed a commercial diet for six months. Results showed that 17α-methyltestosterone reversed the sex of rainbow trout effectively. The proportion of males, intersex, and females in this group were 76.67%, 10%, and 13.33%, respectively. In contrast with 17α-methyltestosterone, using tamoxifen and letrozole showed no effect on sex reversal of rainbow trout. Growth performance was adversely affected by all chemical-treated diets. However, compensatory growth occurred during first month after ending treatment period.
Keywords: Masculinization, Rainbow trout, Sex reversal
Full-Text [PDF 381 kb]   (171 Downloads)    
Type of Study: Orginal research papers | Subject: aquaculture
Received: 2021/05/19 | Accepted: 2023/04/26 | Published: 2023/08/15
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Irani A, Noori F. Research Article: Effect of 17α-methyl testosterone, tamoxifen, and letrozole on growth performance and sex reversal of rainbow trout (Oncorhynchus mykiss). IJFS 2023; 22 (3) :701-712
URL: http://jifro.ir/article-1-4721-en.html

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Volume 22, Issue 3 (2023) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
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