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Reproduction control in fish. II. Delayed reproduction and sterility

Authors: Chevassus, B.; Blanc, J.M.; Chourrout, Daniel;

Reproduction control in fish. II. Delayed reproduction and sterility

Abstract

Lorsque la maturation sexuelle s'accompagne d'une baisse de la rentabilité économique, l'application de méthodes visant à retarder ou à inhiber définitivement la gamétogenèse peut constituer une solution intéressante : — La production d'animaux à maturation tardive peut être attendue de techniques modifiant les facteurs environnementaux (photopériodes artificielles) ou la structure génétique (sélection). — Trois méthodes conduisant à la stérilité sont actuellement à l'étude : dans certains cas, les hybrides interspécifiques sont stériles, mais leurs performances commerciales doivent être satisfaisantes ; la destruction des cellules germinales par les rayons ionisants et la polyploïdie induite auraient sans doute une portée plus générale si toutefois leur efficacité était démontrée.

When sexual maturation provokes a decrease in profitability, the applying of methods, that delay or definitely inhibit gametogenesis, may constitute an interesting solution : — Production of late maturing animals may be attempted from technics that modify environmental factors (artificial photoperiod) or genetical structure (selection). — Three methods leading to sterility are studied for the moment : in some cases interspecific hybrids are sterile but their commercial performances must be proved satisfying ; the destroying of germinal cells by ionizing radiations or the induced polyploidy could be efficient in more general situations.

Country
France
Keywords

fish, [SDV] Life Sciences [q-bio], sexual reproduction, sterility, polyploid, interspecific hybridization, ionizing radiation, hybridization, sexual maturity, polyploidy, fish culture, photoperiodicity, gametogenesis

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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