Method for cultivating crabs

A breeding method and technology of breeding cages, which are applied in the field of crab breeding, can solve the problems of slow growth, low yield, cannibalism, etc., and achieve the effects of easy harvest, high growth speed, and increased individual weight

Inactive Publication Date: 2014-02-19
INST OF AGRI SCI ALONG YANGTZE RIVER IN JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing crab method generally adopts a net to isolate a piece of water for stocking, the yield is low, it is easy to cause cannibalism, and the growth rate is also slow

Method used

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  • Method for cultivating crabs

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Embodiment Construction

[0010] A method for cultivating crabs, which adopts a culture cage 1 for cultivation, and adopts a plurality of culture cages that are strung together through buoyancy rods 2 for cultivation, and the buoyancy rods are anchored to the bottom of a water body through connecting lines; Upper enclosing dense-mesh net; each breeding cage breeds a crab; the upper part of the breeding cage is provided with a feed table 3, and the bottom of the breeding cage is provided with a hidden cave structure 4 that enables crabs to hide; the upper part of the breeding cage is exposed to the water.

[0011] The area of ​​the feed table is 1 / 2 of the cross-sectional area of ​​the breeding cage, and there are protrusions around the feed table to prevent the feed from falling.

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Abstract

The invention discloses a method for cultivating crabs. Cultivation cages are used for cultivating the crabs. The cultivation cages which are strung into a whole through a buoyancy rod are used for cultivating the crabs, the buoyancy rod is fixed to the bottom of a water body through connecting lines in an anchoring mode, a keel framework is adopted in each cultivation cage, dense screens are arranged on the keel frameworks in an enclosure mode, one crab is cultivated in each cultivation cage, a fodder platform is arranged on the upper portion of each cultivation cage, a hiding cave structure is arranged at the bottom of each cultivation cage, each crab can hide in the corresponding hiding cave structure, and the upper portion of each cultivation cage is exposed out of the water surface. According to the method for cultivating the crabs, due to the fact that each crab is cultivated in the corresponding cultivation cage, autotomy is avoided; due to the fact that the upper portion of each cultivation cage is exposed out of the water surface, when the lack of oxygen in the water body happens, the crabs can get close to the water surface to breathe, and high-density cultivation can be carried out; fodder can be sufficiently fed to the crabs, high growth rate is ensured, and the weight of each crab is increased; intensive cultivation can be carried out, and harvesting is easy; compared with a conventional method, the yield is increased by about 20%.

Description

technical field [0001] The invention relates to a method for cultivating crabs. Background technique [0002] Existing crab method generally adopts whole body to separate a piece of water area with net etc. to put in a suitable place to breed, and output is low, easily causes cannibalism, and growth rate is also slower. Contents of the invention [0003] The object of the present invention is to provide a method for cultivating crabs with high yield and fast growth rate. [0004] Technical solution of the present invention is: [0005] A kind of culture method of crab, adopts culture cage to carry out culture, is characterized in that: adopts a plurality of culture cages that are strung together by buoyancy bar to carry out culture, and buoyancy bar is anchored to the bottom of water body through connecting line; The keel frame is surrounded by a dense mesh net; each breeding cage is used to breed one crab; a feed table is provided on the upper part of the breeding cage,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 张学友
Owner INST OF AGRI SCI ALONG YANGTZE RIVER IN JIANGSU
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