Research On Precise Feeding Method Based On Fish Behavior In Circulating Aquaculture

Factory-based circulating aquaculture is an emerging direction of aquaculture fishery.Feeding is a key link in the breeding process.Traditional breeding methods use machines to feed regularly and quantitatively,ignoring the impact of the breeding environment on the bait demand of the fish school,and do not take the feeding behavior of the fish itself as the investment.Reference factors for hello.Feeding too much bait will cause residual bait to cause water pollution,and too little feed will easily reduce the growth and welfare of the fish.In order to solve this problem,this article explores the feeding behavior of fish schools,and studies the precise feeding suitable for circulating aquaculture to reduce the waste of bait and improve the efficiency of fish breeding.This article starts from the perspective of exploring the precise feeding method of circulating aquaculture,by collecting the information in the feeding process of the fish school,studying the method of analyzing and evaluating the feeding behavior of the fish school,and proposes a precise feeding strategy.The main tasks are as follows:(1)Categorize the feeding status of fish schools based on the water flow field information: fish schools will produce more intense group behaviors during the feeding process,resulting in changes in the water flow field information.Industrial pressure sensors can be used to collect the changes in the water pressure caused by the fish school under different feeding intensities,and the time domain characteristics,nonlinear characteristics and complexity characteristics of the signal are extracted through signal analysis,so that the feeding state of the fish school can be monitored.On this feature space,a support vector machine model is trained to distinguish the feeding state of the fish school to realize the classification and recognition of the feeding intensity of the fish school.(2)Establish two evaluation models for the desire to eat in the fish school to quantify the desire to eat in real time: 1)Establish the kinetic energy model of the desire to eat in the fish school,according to the changes in the flow field of the water body caused by the fish in the eating process,Collect the changes in water pressure information,and quantify the overall desire of the fish to eat;2)Process the feeding pictures of the fish,and use the improved K-means algorithm to analyze the convergence and divergence of the fish during the feeding process for the fish Realtime appetite evaluation.The analysis shows that the two evaluation methods proposed in this paper can provide better theoretical guidance for the precise feeding of fish schools in circulating aquaculture.(3)A single-round feeding method of multiple feedings is used to accurately feed the fish,and the amount of bait for each feeding is used for decision-making: analysis of the amount of feeding required for a single feeding Decision-making factor,in the process of designing fuzzy control of feeding,fuzzy decision is made on the amount of feeding of a single feeding through the breeding environment temperature and real-time feeding desire.The software is used to simulate and output the single feeding amount of the fish school.Finally,the feeding decision-making scheme proposed in this paper is experimentally verified.So as to lay the foundation for accurate bait feeding.