Evaluation of the effectiveness of southern reed in fodder for carp grown in recirculating water supply installations

Abstract

Introduction. At the present stage of commercial fish farming, due to rising prices for imported highly productive feed and a shortage of components for the production of domestic feed, pressing issues for the development of aquaculture is the involvement in feed production of inexpensive local non-traditional types of raw materials to intensify the cultivation of the most affordable herbivorous fish species for the population.
Object. The object of the study is feed with different contents of southern reed. Materials and methods. The study was conducted on the basis of the research center “Breeding valuable sturgeon breeds” of the Volgograd State Agrarian University.
Results and conclusions. Based on research, the feasibility of producing feed based on southern reed for herbivorous fish grown in closed water supply systems has been substantiated. Within the framework of this study, a mechanism for a design solution has been proposed for the removal of rapidly renewable biomass of southern reed from water bodies, using it as feed, instead of disposal as waste of class V. There has been successful testing of the production of feed from southern reed at a feed mill at a price of 30 rubles per kilogram. Promising aspects for future research are also identified, which are related to the development of feed production technology with a certain immersion rate and water resistance, the choice of optimal feeding methods and norms depending on the age and type of herbivorous fish, as well as the testing of feed mixtures in various aquaculture conditions.