Comparative breeding and biological analysis of siberian sturgeon (acipenserbaerii brandt) fries of different domestication generations
A comparative breeding and biological assessment of fries' quality produced from Siberian sturgeon breeders of the Lena population (the 1st and 5th generations reared under conditions of an industrial farm) is carried out. It is shown that fries produced from breeders of the 5th domestication generation are more resistant to mixobacteriosis. Statistically significant differences between average morphometrical indices in these two generations are not found. Experimental studies on fries' adaptation capacity, reared in tanks of an industrial farm, in relation to conditions of a natural water body are carried out in ponds. It is shown, that there are no differences in feeding spectrum and consumption intensity by the Siberian sturgeon fries. An advisability of fries use, produced by breeders being kept under artificial conditions for a long time, to reacclimatize in natural water bodies is assessed.