Ecological breeding method for intercropping river crabs and freshwater shrimps and channel catfishes

Abstract

An ecological breeding method for intercropping river crabs and freshwater shrimps and channel catfishes comprises the following specific steps of pond preparation, pond cleaning and sterilization, grass planting and conch putting, fry putting, feeding putting, water quality management, disease and pest prevention and control and capture. The ecological breeding method provides a mode for ecologicmixed breeding of river crabs, freshwater shrimps and channel catfishes, so that the crabs, the shrimps and fish are mutually benefited and coexist in a pond. The channel catfishes can eat small trash and diseased shrimps and can also clear residual bait and algae in the pond, the surfaces of fish can secrete one or more substances and can inhibit crab and shrimp viruses. The shit excreted by theriver crabs and the channel catfishes is high in protein content, protein likely accommodates at the bottom of the pond to destroy a water environment and cause the increase of the disease and pest risk, and the freshwater shrimps can eat the shit of the river crabs and the channel catfishes, so that water is purified, the pollution caused by breeding itself is reduced, a good breeding environment is kept, and the high-yield efficient and ecological technical effect is achieved on the basis of no feed or little feed putting.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an ecological breeding method for raising freshwater shrimp and channel catfish in nests with river crabs. Background technique [0002] The scientific name of freshwater shrimp is Japanese river prawn ( Macrobrachium nipponense ), commonly known as river shrimp, grass shrimp, lake shrimp, belongs to Crustacea (Crustacea), Macrobrachium ( Macrobrachium ), widely distributed in freshwater waters in my country. It has the advantages of high fecundity, strong adaptability, rich nutrition, delicious meat, and can be listed all year round. It is a famous and precious aquatic product loved by the masses, and it is also an important freshwater cultured shrimp in my country. At present, freshwater shrimps, especially large-sized freshwater shrimps, are in short supply. The market demand is strong, and the price is at a relatively high level among freshwater products. [0003] cha...

AI Technical Summary

Problems solved by technology

[0004] The scientific name of river crab is Chinese mitten crab ( Eriocheir sinensis ) belongs to Decapodidae, Crabidae, and Eriocheir genus. It is the most distinctive special aquaculture species in Jiangsu Province. In recent years, due to the expansion of river crab breeding area, the increase of production costs and the failure to effectively expand the commercial crab consumption market Influenced by unfavorable factors such as the

At present, river crab farming is basically a high-density intensive farming method. The pond has a large load, the water environment is relatively poor, and the growth of moss is serious, which is not good for the feeding and growth of river crabs, and the incidence of river crabs is high.

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