Assessment of the impact of pond aquaculture on water resources against the background of the use of biogenic feed additive Akwa-Biot-Norm

Abstract

A biogenic feed additive based on protein components and immunotropic preparations intended for the fulfillment of the bio-resource potential of fish by activating nonspecific and specific factors of organism protection against eco-technological pressing and for prevention of infectious and invasive diseases improving competitiveness and the effective functioning of fish farms was developed and suggested for use on fish farms. It was established that upon the use of Akwa-Biot-Norm biogenic feed additive based on a polysaccharide complex of Saccharomyces cerevisiae (S. cerevisiae) yeast cells; the average weight of carps at the end of the experiment period was 2.19% higher than the control index in comparison with 2.71% for the live weight gain. With the maintenance of the pond aquaculture we observed moderate impact on water resources, but the use of Akwa-Biot-Norm biogenic feed additive in the carp growing technology reduces the degree of impact of the pond aquaculture on water resources. For example, the locality of the experimental group pond in relation to the locality of the control group pond, the quantity ofreadily oxidizable organic matter was 2.52% higher compared to 1.28% in the case of labile organic matter. The amount and biomass of phytoplankton increased on 4.08 and 9.86%, respectively.