Die Entstehung und experimentelle Beeinflussung des extremen Geschlechtsunterschieds im Wachstum der Moschusente, Cairina Moschata Flemm

In a first experiment 30 fertile eggs of Moscovy ducks were dipped in a solution of 40 mg diethylstilbestrol/100 ml ethanol (95 %) at day 13 of incubation. The treatment caused total suppression of penis development but reduced hatchability to 30%. In a second trial 46 fertile eggs were dipped at day 8 of incubation. In this case only subtotal suppression of the penis was induced; hatchability reached 89 %. In both experiments the left gonad of the males developed to an ovotestis but returned slowly to normal testis structure. The total suppression of the penis and of the bulla ossea was irreversible even after the testis had reached again their normal androgen secretion. There was no influence of the treatment on the marked difference in growth of male and female ducklings.

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Zur Analyse des geschlechtsspezifischen Wachstums der Moschusente,Cairina moschata

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1966

J Ornithol

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Die Entstehung und experimentelle Beeinflussung des extremen Geschlechtsunterschieds im Wachstum der Moschusente, Cairina Moschata Flemm

Cited by 3 publications

References 56 publications

Biologische Auswertung der Androgene

Biologische Auswertung der Androgene

Der Einflu� einer Stilboestrolbehandlung des Embryo auf die Entwicklung der Gonaden, des Penis, der Syrinx und des K�rpergewichts der Moschusente,Cairina moschata

Zur Analyse des geschlechtsspezifischen Wachstums der Moschusente,Cairina moschata

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