Fish pond captivity system and application thereof

Abstract

The invention belongs to the technical field of aquiculture, and particularly relates to a fish pond captivity system and application thereof. The system is characterized by being a recyclable captivity system, the system at least comprises a captivity device (100), a sewer collecting and discharging system (200), an aeration system (300), a water circulating system (400) and a waste treatment system (500). Detailed configurations and functions of all the systems are disclosed and can be mutually matched and achieve overall running. The invention further discloses a specific application methodand steps. The fish pond captivity system is an organic and friendly fish culture system. The experiments show that the daily discharge efficiency of the captivity system is about 95%.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a fish pond captive breeding system and its application. Background technique [0002] The pond fish farming model that has lasted for thousands of years in our country is actually a free-range model, that is, fish can move freely in the entire aquaculture water body. This mode is an ecological breeding mode when the stocking density is low and the fish carrying capacity of the water body is less than the self-purification capacity of the water body. At this time, fish residues such as bait and feces can be fully converted into inorganic nutrients through the decomposition of microorganisms, and then flow to filter-feeding and omnivorous fish through the food chain (net), thus reflecting the high efficiency and circulation of nutrients. Utilization has thus become a typical Chinese-style ecological polyculture mode that is admired by the world. [0003] However,...

AI Technical Summary

Problems solved by technology

[0003] However, if the stocking density is too high and the number of fish carried by the water body exceeds its self-purification capacity, organic matter such as residual bait and feces cannot be mineralized and decomposed by microorganisms in time, resulting in excessive accumulation of organic matter; The pond environment has strong toxic and side effects on fish, rapidly reducing fish physique and resistance, and diseases follow one after another; in order to maintain the survival rate of aquaculture, fishermen have to use large and frequent fish medicines to resist diseases, which not only increases the growth rate risk, and the quality of aquatic products has been greatly reduced, and safety hazards such as drug residues are particularly prominent

Therefore, at the moment when the breeding density is generally high (the yield per unit area is generally 900-2000kg / mu, and the breeding output of individual species in a few areas is even as high as 8000kg / mu), the traditional "free-range breeding" mode is no longer suitable for breeding needs. The innovation of healthy farming model is imminent

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