Two-way selection for muscle lipid content modifies puberty and gametogenesis in rainbow trout

Weil C., Goupil A.S., Quillet E., Labbé L., Le Gac F.

Date de parution: juillet 2008
Volume: 32
Number: 2 suppl.
Pagination: 198
Editeur: Société Française d'Ichtyologie

The aim of the present work was to compare the reproductive characteristics of males and females from two divergent lines of spring-spawning rainbow trout, selected for high (fat line, FL) or low (lean line, LL ) muscle lipid content. Muscular lipid content influences precocious puberty in 1 year-old males and in 2 year-old females, as well as the kinetics of gametogenesis. The relationship between the different phases of gametogenesis and fat reserves are discussed.

Mots-clés: Gametogenesis - Muscle lipid content - Puberty - Trout
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