Controlled reproduction of farmed Siberian sturgeon acipenser baerii brandt

The present chapter is a synthesis of the available data related to the management of the reproduction of the Siberian sturgeon under farmed conditions. Some reproduction-related biological characteristics are briefly quoted. Preselection of potential brood fish is related in detail as well as pre-spawning holding regime with a focus on water temperature. Definite selection of reputed ready-to-spawn brood fish is described. As for preselection, the usefulness for the definite selection of the rate of migration of the germinal vesicle towards the animal pole (the polarization index, PI) is presented. The two tools for males (echography and texture of testis) are evoked. With regard to females, plasmatic indicators and observations of ovarian follicles are described with a focus on the powerful of the in vitro maturation competence (IVMC). The different alternatives for hormonal stimulation, including some unusual practices when management somewhat failed, are described in conjunction with time scale working agenda. Collection, observations, stocking and management of gametes are successively presented. The many possibilities for the so-called de-adhesive treatment are described as post-fertilization treatment. Some data on yields and perspectives are discussed. In general, we provide practical comments and a lot of illustration both with photos and graphs.