Hormonal manipulation of sex in the common carp, Cyprinus carpio var. communis (Linnaeus)

Attempts were made to manipulate the sex of the common carp, Cyprinus carpio, by dietary administration of 17 α-methyl-testosterone (17 α-MT) (220 ppm) and 17 β-estradiol (17 β-E 2) (200 ppm) for 131 days starting with one-day-old hatchlings. Administration of 17 α-MT and 17 β-E 2, in general, retar...

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Published inAquaculture Vol. 35; no. 1; pp. 83 - 88
Main Authors Sathyanarayana Rao, H.N., Satyanarayana Rao, G.P.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1983
Subjects
carp
carpa
carpe
fish culture
Freshwater
piscicultura
pisciculture
reproduccion
reproduction
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Summary:Attempts were made to manipulate the sex of the common carp, Cyprinus carpio, by dietary administration of 17 α-methyl-testosterone (17 α-MT) (220 ppm) and 17 β-estradiol (17 β-E 2) (200 ppm) for 131 days starting with one-day-old hatchlings. Administration of 17 α-MT and 17 β-E 2, in general, retarded gonadal development and altered the sex ratio significantly. The 17 α-MT treated group had 46% male and 54% sterile forms while the 17 β-E 2 treated group had 15% male, 42% female and 43% sterile forms. The sex ratio of control fish was unaltered and had a more or less normal sex composition of almost 50% males and 50% females.
Bibliography:M10
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ISSN:0044-8486
1873-5622
DOI:10.1016/0044-8486(83)90073-X