Technological elements vodraschivaniya Lena sturgeon fingerlings in Belarus

Abstract

The results of the studies helped to identify technological parameters for rearing Lena sturgeon larvae to weight of 3.2 g in conditions of Belarus. It was determined that the most cost-effective are the stocking density of 6 thousand ind./m²at standing and a 2.0 ind./m² at switching Lena sturgeon larvae to artificial feed. In this case survival is high and the number of production areas is greatly reduced. Stocking density of 0.7 thousand ind./m² when rearing young Lena sturgeon to a viable stage can be taken as a pre-regulatory baseline. Deterioration of temperature, oxygen and active modes of reaction pH medium In addition to reducing the rate of growth and survival, can cause a variety of diseases and mass mortality of fish.