Morphological sex change upon treatment by endocrine modulators in meiogynogenetic tench (Tinca tinca L.)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F10%3A00011389" target="_blank" >RIV/60076658:12520/10:00011389 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Morphological sex change upon treatment by endocrine modulators in meiogynogenetic tench (Tinca tinca L.)

Popis výsledku v původním jazyce

Exogenous steroids alter sex differentiation in fish substantially. In the present study we have evaluated the effects of 17 alpha-methyltestosterone (MT) and oestrogen receptor antagonist Tamoxifen (TA) on gonadal development and skewness of the sex ratio in all-female tench juveniles. In the first two experiments, sexually undifferentiated juveniles were orally treated with three doses of MT and TA (50, 100 and 150 mg kg(-1)). Both the treatments resulted in a moderate dose-dependent masculinization,with neomale production ranging from 17% (50 mg kg(-1)) to 26% (150 mg kg(-1)) for the MT only treatment, and from 0% (50 mg kg(-1)) to 27% (100 mg kg(-1)) only for the TA treatment respectively. In the third experiment treatment of sexually differentiated tench females with single steroid treatments or combinations of the two resulted in populations composed of females and intersex individuals. The significantly highest occurrence of intersex individuals (45.5%) was found in the group s

Název v anglickém jazyce

Morphological sex change upon treatment by endocrine modulators in meiogynogenetic tench (Tinca tinca L.)

Popis výsledku anglicky

Exogenous steroids alter sex differentiation in fish substantially. In the present study we have evaluated the effects of 17 alpha-methyltestosterone (MT) and oestrogen receptor antagonist Tamoxifen (TA) on gonadal development and skewness of the sex ratio in all-female tench juveniles. In the first two experiments, sexually undifferentiated juveniles were orally treated with three doses of MT and TA (50, 100 and 150 mg kg(-1)). Both the treatments resulted in a moderate dose-dependent masculinization,with neomale production ranging from 17% (50 mg kg(-1)) to 26% (150 mg kg(-1)) for the MT only treatment, and from 0% (50 mg kg(-1)) to 27% (100 mg kg(-1)) only for the TA treatment respectively. In the third experiment treatment of sexually differentiated tench females with single steroid treatments or combinations of the two resulted in populations composed of females and intersex individuals. The significantly highest occurrence of intersex individuals (45.5%) was found in the group s

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GL - Rybářství

OECD FORD obor

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Projekt

<a href="/cs/project/LC06073" target="_blank" >LC06073: Centrum pro výzkum biodiverzity</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Aquaculture Research

ISSN

1355-557X

e-ISSN

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Svazek periodika

41

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

000273546500008

EID výsledku v databázi Scopus

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