Cultivation of Rotifers Brachionus plicatilis

Fish farming is one of the sectors of the national economy that provides the population with high-protein food.The cultivation of valuable fish species allows us to expand the range of products, increase production volumes, and increase the profitability of fish farming organizations.In artificial fish farming, one of the main challenges is to produce viable juveniles.Growing juveniles during the transition to exogenous nutrition is one of the most problematic stages of the technological cycle of commercial fish farming.In order to obtain full-fledged juveniles for the purpose of accelerated rearing of commercial fish.In the conditions of specialized fish farms, fish farming is closely related to its feeding, the purpose of which is to obtain the maximum number of high-quality products in the shortest possible time with minimal feed costs.At the same time, the commercial aspect becomes dominant, where profit is the decisive factor.Therefore, in fish feeding, there is a constant search for ways to reduce the cost of feed and increase its productivity, which is gradually but rather difficult to achieve due to the obvious contradiction between these tasks.The effectiveness of the chosen fish feeding methods directly affects the performance of the fishing industry as a whole.The purpose of the study was to analyze the ecological and physiological aspects of the cultivation of live feed and starter feed for fish larvae.The main problem for fish farming is the production of live feed.Mass cultivation of live food as starter food for fish larvae is a rather complicated technological process based on detailed knowledge of the biological characteristics of the objects being bred and their relationship to environmental factors.With a short digestive tract, the ability of larvae to grow rapidly is due to their adaptation to high-protein, easily digestible animal food, i.e. small zooplankton.The problem of obtaining live feed for rearing juvenile fish in artificial conditions is one of the central issues in industrial fish farming.