[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 2, Issue 2 (5-2022) ::
injoere 2022, 2(2): 11-15 Back to browse issues page
Investigation of sexual maturity and change in gonadosomatic index of sex riversed rainbow trout (Oncorhynchus mykiss) treated by oral 17 alpha methyl testosterone
A. Rastiannasab *, E. Kazemi
Abstract:   (1256 Views)
The study was carried out in the genetics and breeding resaerch canter of yasouj. All eye-stage eggs were used for the experiment using vertical hatching units to complete hatching. A standard commercial granule feed was used in all experimental groups. The experiment consisted of control treatment and one dose of hormone  17α-Methyltestosterone added to the diet at the rate of 3 mg per kg food by dissolving in 200 ml of 95% ethanol per kg feed.The use of oral administration of 17α-methyltestosterone (17MT) at 3 mg 17MT/kg of feed for 70 days following the onset of feeding to sex reverse rainbow trout (Oncorhynchus mykiss) to produce XX males is well established. Examination of the results showed that 17α- methyltestosterone was effective in sex riversed of rainbow trout. The results  has shown in nearly 100% of the treated animals being males. The GSI index in female and male fish of control group were  0.04±0.1   and 0.07±0.01, respectively (Fig.3) and significantly different (p≤5%). But  GSI index  of 100% sex riversed male fish of MT treated was 0.06±0.01 and hadn,t significantly differene (p≥5%) with treated group ( genetically male and female).
 
Keywords: Onchorynchus mykiss, 17α-Methyltestosteron, Sex reversal, GSI index, XX male
Full-Text [PDF 269 kb]   (204 Downloads)    
Type of Study: Research | Subject: General
Received: 2022/05/8 | Accepted: 2022/04/30 | Published: 2022/04/30
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA



XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Rastiannasab A, Kazemi E. Investigation of sexual maturity and change in gonadosomatic index of sex riversed rainbow trout (Oncorhynchus mykiss) treated by oral 17 alpha methyl testosterone. injoere. 2022; 2 (2) :11-15
URL: http://injoere.com/article-1-52-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 2, Issue 2 (5-2022) Back to browse issues page
International Journal of Environmental Research and Education
Persian site map - English site map - Created in 0.04 seconds with 29 queries by YEKTAWEB 4463