Features of the disclosure of growth and adaptogenic potency in two- and three-year-olds of herbivorous fish in the conditions of the Kaliningrad region
https://doi.org/10.37663/0131-6184-2022-3-62-72
Abstract
This article reviews the experiment of growing two-year old three-year old carp, grass carp, silver and bighead carp in experimental ponds of EEF KSTU from May to October 2021 in order to determine their growth and adaptagenic potency. According to the results of the evaluation of growth potential disclosure of herbivorous fish, we observed similar dynamics of the rate of mass accumulation at two and three years of age. Maximum values were observed in summer (July-August) and minimum values in autumn (September-October). Close resolution of growth potency was observed for three-year-old silver and bighead carp. According to the results of the assessment of the disclosure of adaptogenic potency, the highest value of the ecological coefficient was observed for bigheaded carp (70% of the influence on growth from ecological factors). In other groups of two-year-olds, the disclosure of this factor was at an average level (39-56 %), and in three-year-olds it was at a low level (33 %). The survival rate of the study groups did not exceed 80-92%. According to the results of the study, the disclosure of growth and adaptogenic potency for two-year old three-year-old fish in ponds of EEF in 2021 was disclosed at the average level of values, the growing season corresponded to IV fish farming zone.
About the Authors
T. M. Kurapova
Kaliningrad State Technical University
Russian Federation
Russian Federation
Candidate of Biological Sciences, Associate Professor
L. V. Savina
Kaliningrad State Technical University
Russian Federation
Russian Federation
Candidate of Biological Sciences, Associate Professor
D. G. Lopukhin
Kaliningrad State Technical University
Russian Federation
Russian Federation
Specialist in educational and methodological work – Institute of Fish Farming and Aquaculture, Department of Aquatic Bioresources and Aquaculture
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Review
For citations:
Kurapova T.M., Savina L.V., Lopukhin D.G. Features of the disclosure of growth and adaptogenic potency in two- and three-year-olds of herbivorous fish in the conditions of the Kaliningrad region. Fisheries. 2022;(3):62-65. (In Russ.) https://doi.org/10.37663/0131-6184-2022-3-62-72
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