EXPERIMENTAL BREEDING THE ONE-YEARS OF HYBRID BETWEEN RUSSIAN STURGEON AND STELLATE IN THE FISH FARMS OF SOUTH KAZAKHSTAN
The paper presents the results of experimental breeding of the one-years of hybrid of Russian sturgeon and stellate ( Acipenser gueldenstaedtii × Acipenser stellatus ) in basins supplied with artesian water. The values of thickness of stocking, water circulation in basins, weight and length growth, according to the results of control fishing, fish-breeding parameters at 2 stages of breeding: from grown up fingerlings to middle weight 5-10 g and from weight 5-10 g to replacement in the wintering ponds of carp fishing farm are presented. Hybrid vigour is demonstrated by the results of feeding - feeding factor of one-year hybrid is rather lower (by 3.41 times) than that of Russian sturgeon fingerling. The dynamics of the values of coefficient of variation, asymmetry of the mass values, the values of coefficient of mass accumulation of Russian sturgeon and stellate hybrid was analyzed. It is shown that the rates of length and mass growth of Russian sturgeon and stellate hybrid fingerling and maternal species grown up in the same conditions are similar. It is also found that the biotechnical technologies for breeding hybrid and its maternal species are similar as well.