Method for carrying out integrated aquaculture of ictalurus punctatus in pond industrial system

Abstract

The invention discloses a method for carrying out integrated aquaculture of ictalurus punctatus in a pond industrial aquaculture system. The method is scientific and feasible in principle, easy to operate and implement in production, and capable of being adopted and applied by farmers easily in economic benefit. The method comprises the steps of preparation before planting and aquaculture, fry stocking, purification zone floating bed rice planting, planting and aquaculture management, aquatic species capturing and rice harvesting. Accordingly, by means of the proper stocking density of ictalurus punctatus fingerlings in an aquaculture water tank, the stocking size is improved, and by means of the annual aquaculture, commercial longsnout catfish with the best-selling size being about 1.5 kg / fish are sold at a high price at different times; by properly stocking a proportion of silver carp, bighead carp, myxocyprinus asiaticus, penaeus monodon and snails and planting 5-8% of floating bedrice in an ecological purification zone simultaneously, and by means of the integrated planting and aquaculture measure, the in-situ remediation effect on aquaculture water is better exerted, the ecological benefit, comprehensive output and economical benefit of the whole breeding system are significantly increased, and the method has strong practical application and popularization value.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for cultivating channel catfish in a pond industrialization system. Background technique [0002] In the prior art, the pond industrialized breeding system refers to using the water surface of part of the pond to build a series of water tanks (the tank body can be a brick-concrete structure or a stainless steel structure, etc.) with air lift, push water, aeration and sewage collection equipment as a breeding area ( Including pushing water area, aquaculture tank, sewage collection and discharge area), and the rest of the pond water surface will be properly transformed as an ecological purification area. In the breeding area, high-density farming similar to "factory" is carried out, and other aquatic species are stocked in the ecological purification area. Through sewage collection and regular sewage suction measures to purify the tail water of aquaculture...

AI Technical Summary

Problems solved by technology

As far as the channel catfish is cultured in the pond industrialization system, 1) limited by the existing sewage collection and discharge technology level of the system, the removal rate of residual bait and fish feces is often less than 20%, and the residual bait, Nutrients such as fish feces can easily cause eutrophication of the water body, resulting in a lot of organic suspended matter, rich algae, low transparency, and deterioration of water quality in the water body; 2 ) to stock channel catfish. When the cultured individuals flock to eat the feed, their hard dorsal fins, pectoral fins, and anal fins are likely to cause mutual abrasions, and are prone to saprolegniasis, hemorrhagic disease, intussusception and other diseases; 3 ) Channel catfish are gluttonous, do not know how hungry or full they are, the feed utilization rate is not high, and the detected values ​​of physical and chemical indicators of water quality often exceed the values ​​suitable for the growth of channel catfish; Preparations are used to regulate water quality, the effect is poor, and the comprehensive output is low

Images