Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-25T19:46:37.546Z Has data issue: false hasContentIssue false
  • English
  • Français

Production of all-triploid and all-female brown trout for aquaculture

Published online by Cambridge University Press:  15 January 1991

Edwige Quillet ,
Laure Foisil ,
Bernard Chevassus ,
Daniel Chourrout  and
F. G. Liu
Edwige Quillet
Affiliation:
INRA, Laboratoire de Génétique des Poissons, 78350 Jouy-en-Josas, France
Laure Foisil
Affiliation:
INRA, Laboratoire de Génétique des Poissons, 78350 Jouy-en-Josas, France
Bernard Chevassus
Affiliation:
INRA, Laboratoire de Génétique des Poissons, 78350 Jouy-en-Josas, France
Daniel Chourrout
Affiliation:
INRA, Laboratoire de Génétique des Poissons, 78350 Jouy-en-Josas, France
F. G. Liu
Affiliation:
INRA, Laboratoire de Génétique des Poissons, 78350 Jouy-en-Josas, France Present address: Aquaculture department, Taiwan Fisheries Research Institute, Keelung, Taiwan, R.O.C.
Get access

Abstract

Heat shocks effective for the production of triploid brown trout (Salmo trutta) were optimized: 28 °C shocks lasting 10 to 15 minutes and applied 5 minutes after fertilization induce very high rates of triploidy (close to 100%) without causing much mortality; they can therefore be proposed for mass production of triploid brown trout. Female homogamety in that species is also demonstrated from analysis of gynogenetic progenies and progenies of sex-inverted females. Although the efficiency of masculinizing hormonal treatments requires further improvement, production of all-female sterile populations is now possible in this species promising for European sea-farming.

Keywords

Brown trouttriploidygynogenesisgenetic sex-controlmasculinizationTruite communetriploïdiegynogenèsedéterminisme génétique du sexeinversion sexuelle
Type
Research Article
Information
Aquatic Living Resources , Volume 4 , Issue 1 , January 1991 , pp. 27 - 32
Copyright
© IFREMER-Gauthier-Villars, 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)