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Hormonal sex manipulation and evidence for female homogamety in channel catfish.

Abstract:

The mechanism of sex determination in channel catfish Ictalurus punctatus was evaluated by hormonal and genetic methods. Aromatizable and nonaromatizable androgens, as well as an estrogen, caused feminization in fish fed steroids for 21 days after yolk-sac absorption. The effectiveness of 60 micrograms of ethynyltestosterone/g food decreased markedly when the experimental feeding period was shortened and was ineffective when the treatment lasted less than 12 days. Females from all-female popu...

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Authors


Goudie, CA More by this author
Parker, NC More by this author
Cauldwell, W More by this author
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Journal:
General and comparative endocrinology
Volume:
78
Issue:
2
Pages:
218-223
Publication date:
1990-05-05
DOI:
EISSN:
1095-6840
ISSN:
0016-6480
URN:
uuid:3a6d79ba-b4be-4f45-b765-80d0a81e7425
Source identifiers:
340952
Local pid:
pubs:340952

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