Method and device for cage propagation of Portunus trituberculatus Miers in coastal mudflat pond

Abstract

The invention provides a method for the cage propagation of Portunus trituberculatus Miers in a coastal mudflat pond, which is characterized in that: selecting and domesticating parent crabs; selecting egg-carrying crabs and producing juveniles; and breeding juvenile crabs, wherein the whole juvenile crab breeding process is performed in natural ecological environment in the coastal mudflat pond.The invention also provides breeding cages and accessory facilities which are used in the method, which comprise temporary parent crab breeding cages, breeding cages and juvenile attaching bases. In the cage propagation in the coastal mudflat ponds of the invention, the parent crabs are gown in the temporary breeding cages, the juveniles are distributed in the breeding cages and the juveniles arebred in the cages; all facilities are arranged in one pond, so the operation is convenient; being bred in the outdoor coastal mudflat pond, the Portunus trituberculatus Mier juveniles can well adapt to the outside environment; the survival rate is high; the juveniles production is consistent; and the drawback of low adaptability to outside environment of juvenile crabs bred in greenhouses is overcome.

Description

technical field [0001] The invention relates to a net cage breeding method and device for Portunus trituberculatus coastal tidal flat ponds, belonging to the field of aquaculture. Background technique [0002] Portunus trituberculatus belongs to Arthropoda, Crustacea, Decapod, Portunidae, Portunidae, and is a large edible crab widely distributed in the coastal areas of my country. It is a traditional precious seafood, which is loved for its plump fat and delicious meat, and can be transported fresh. It is very popular at home and abroad, and its price remains high. In terms of production, because of its fast growth, the breeding seedlings can grow into commercial specifications in the same year, and the breeding management is relatively easy, and the economic benefits of breeding are relatively high. In recent years, it has developed rapidly in coastal tidal pond breeding and has become the main economic crab in my country. Breeding species. In the past ten years, with the ...

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to provide a kind of seedling cage and auxiliary facilities suitable for Portunus trituberculatus outdoor pond culture, which solves the problem of adapting to the natural environment in the larvae cultivation process, improves its survival rate, and achieves The emergence time is relatively concentrated, which is convenient for the cultivation of larvae

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