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Mixed ecological culture method of high-sea swimming crabs and Chinese prawns

A technology of sea swimming crab and Chinese prawn, which is applied in the field of swimming crab breeding, can solve the problems of short growth cycle and low economic benefit of the sea swimming crab, and achieve the effects of improving the breeding output and breeding efficiency, improving the survival rate and prolonging the growth cycle.

Inactive Publication Date: 2020-12-22
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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Problems solved by technology

However, there have been no reports of breeding in northern my country. The main reason for the blame is that the growth cycle of Portunus pelagics in northern my country is short and the economic benefits are low.

Method used

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Embodiment Construction

[0017] Describe technical method of the present invention in detail below by embodiment:

[0018] (1) Seed selection: In this embodiment, the artificially cultivated Portunus pelagicus stage II young crabs and Chinese prawn larvae (about 1 cm in body length) with complete appendages, smooth body surface, and strong health and vitality are selected; Virus (WSSV) should be detected to avoid the above-mentioned specific pathogens in juvenile crabs and larvae as much as possible.

[0019] (2) Construction of outdoor plastic greenhouse ponds: the aquaculture ponds were drained, sun-dried, and disinfected at the end of March. In early April, plastic greenhouses were built in the outdoor aquaculture ponds near the slope. The ratio of the area of ​​the aquaculture ponds to the area of ​​the plastic greenhouses was 50:1. , The bottom of the plastic greenhouse pond is sandy and muddy, and the depth of the pond is 1.6m. Taking the bottom of the culture pond as the plane, 1.0m below the p...

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Abstract

The invention relates to a mixed ecological culture method of high-sea swimming crabs and Chinese prawns, and belongs to the technical field of swimming crab breeding. The mixed ecological culture method comprises the following steps of selecting high-sea swimming crab II-stage young crabs with complete appendages, smooth body surfaces and strong healthy vitality and young Chinese prawns with thebody length of 0.9-1.1 cm for mixed ecological breeding; building an outdoor plastic greenhouse pool to temporarily culture the young high-sea swimming crabs, so that the growth period is prolonged, and the marketing specification is improved; and placing scallop cages and arranging shields, so that self-mutilation of the high-sea swimming crabs in the high sea is reduced, and the culture survivalrate is increased. The problems of small marketing specification, low culture survival rate and low comprehensive benefit of the high-sea swimming crabs are solved, the marketing specification of thehigh-sea swimming crabs reaches 100 g or above, the culture survival rate reaches 35% or above, and the comprehensive benefit reaches 9000 yuan / mu.

Description

technical field [0001] The invention belongs to the technical field of swimming crabs, and in particular relates to a method for mixed ecological breeding of swimming crabs and Chinese prawns. Background technique [0002] Portunus pelagicus (Portunus pelagicus), also known as swimming crab, commonly known as flower crab, belongs to the phylum Arthropoda, the class Cmstacea, the family Portunidae, and the genus Portunus. It is a warm-water crab and is mainly used in my country. Distributed in coastal areas such as Zhejiang, Fujian, Taiwan, Guangdong, Guangxi and Hainan Island. Portunus pelagics are large in size, high in edible value, delicious in meat and rich in nutrition. They are one of the main seawater economic crabs in Hainan, Guangdong and Guangxi. In recent years, due to overfishing, the resources of Portunus pelagics are declining day by day. Portunus pelagics has the advantages of fast growth, less disease and high economic value. It is a new species of marine cul...

Claims

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Application Information

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IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 高保全任宪云刘萍李健
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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