Influence de substrat et du génotype sur la croissance et la survie au cours de la résorption vitelline chez la truite commune (Salmo trutta L.)

Abstract

Survival and growth performances during yolk resorption have been studied on a domesti- cated and a wild strains as well as on crossbreds between these two strains. These genotypes were hatched on a flat and an artificial substrates. Positive effects of the artificial substrate and the domesticated strain on survival and growth rates were demonstrated. However, no significant genetic effect was detected. INTRODUCTION