Growth comparative trial of fingerlings of sterlet (Acipenser ruthenus L.) and that of its hybrid with male Siberian sturgeon (Acipenser baeri B.)

• Main Authors: Ronyai, A., Ruttkay, A., Varadi, L., Peteri, A.
• Other Authors: FISH CULTURE RESEARCH INSTITUTE SZARVAS HUN, UNIVERSITY OF AGRICULTURAL SCIENCES GODOLLO HUN
• Format: Conference Object
• Language: English
• Published: Cemagref Editions 1991
• Subjects: ACIPENSER RUTHENUS; ACIPENSER BAERI; HYBRIDE; CROISSANCE BIOLOGIQUE; ALIMENTATION; HYBRIDS; FEEDING; Siberian sturgeon
• Online Access: https://irsteadoc.irstea.fr/cemoa/PUB00005583

The experimental breeding of the Siberian sturgeon has been started at the beginning of the eighties in Hungary. When the Siberian sturgeon males became sexually matured, an attempt has been made to crossbreed this sturgeon with the native sterlet. The hybrid and the sterlet were propagated in May 1987 during the natural spawning season of the sterlet. After successful propagation, a comparative trial on the growth rate of sterlet and the hybrid was carried out in a water recycling system at a water temperature of 22-23 °C. Natural feed and three different types of formulated feeds have been applied in the experiments. The growth rate of the hybrid was proved to be higher in each experimental group. / L'élevage expérimental de l'esturgeon sibérien a commencé en Hongrie au début des années 1980. Lorsque les esturgeons sibériens mâles ont été pubères, on a cherché à les croiser avec le sterlet, indigène en Hongrie. L'hybride et le sterlet ont été produits en mai 1987 durant la période de reproduction naturelle du sterlet du Danube. Ensuite on a comparé la croissance du sterlet et de son hybride avec l'esturgeon sibérien mâle dans un circuit fermé à une température de 22-23 °C. Quel que soit l'aliment utilisé (naturel et 3 formules différentes d'aliments artificiels), la croissance de l'hybride est meilleure que celle du sterlet.