Features of growth and development of sturgeons and their hybrid forms in industrial conditions

The article presents the results of assessing exterior indicators sturgeon hybrids when grown under certain conditions. Experimental studies were carried out at LLC "Mulinsky fish farm" Nizhny Novgorod region in 2019-2022. object study was sturgeons different genotypes (Russian - group 1, Siberian 2, Russian with 3 and species 4). In a comparative aspect, growth rates various genotypic groups determined recirculating water supply installation. Based on data morphometric parameters, it found that difference studied characteristics is not significant. As result comparison external features, all had physique typical sturgeons. analysis conducted studies, can be concluded 3rd hybrid leader terms total commercial length age periods, surpassing other genotypes. It also important to note outperformed purebred forms, proved effect heterosis appeared. body weight their heterogeneity noted, so 3.6 9 months, largest mass among observed where are superior by 12 months situation changes 18, 24 begin exceed parental is, force manifested. Changes length, height girth attributed breed.