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Proximátní kontrola pohlavního dimorfismu u živorodky Poecilia wingei / Proximate control of sexual dimorphism in livebearer Poecilia wingei

The effect of 17α-methyltestosterone a 17β-estradiol on sex of livebearer fish Poecilia reticulata and P. wingei was studied. Solution of 2.5 mg testosterone was added in the aquarium the first and fifteenth day after delivery of new fry. Estrogen was administered in food to gravid females (400 mg per 1 kg food). Sex of all individuals was determined in one, two and three months. Administration of neither testosterone nor estrogen caused sex reversal; in the second case reproduction of almost all females was stopped.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:321141
Date January 2013
CreatorsFarkačová, Klára
ContributorsKratochvíl, Lukáš, Slavík, Ondřej
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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