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Crab cultivation method

A breeding method and crab technology, applied in fish farming, climate change adaptation, animal feed, etc., can solve problems such as incomplete experience in artificial crab breeding, damage to the ecological environment of crabs, and low survival rate of crabs, so as to improve the anti-disease effect , promote the transformation into crab meat, promote the effect of quality and yield

Inactive Publication Date: 2018-03-27
HEFEI KANGQINGYUAN BREEDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are still many deficiencies in the technology of artificially raising crabs, and people's experience in artificially raising crabs is not yet perfect.
Breeding crabs require different baits at different stages, and require different growth environments. Many technicians ignore the scientific setting of the ecological environment for crab farming when breeding crabs, use industrial compound feed, and use drugs blindly, causing damage to the ecological environment of crabs. Crab survival rate is low, quality declines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of crab culture method, comprises the following steps:

[0023] 1) Pond selection: Choose a water area with good water quality, no pollution, and a flat bottom, surround it with a fence, and build a pond. The depth of the pond is 1m, and 0.6mm high anti-escape facilities are installed around it. net, drain the water in the pond, remove the natural enemies of crabs, expose to the sun for 3 days, and obtain an empty pond;

[0024] 2) Pond environment construction: install hoses with multiple air outlets at the bottom and wall of the pool, the hoses are connected to the aerator, and the oxygen is filled into the pond through the aerator and hoses to avoid suffocation of the crabs; then Put into the deep water of 0.8m in the pond, put in the ratio of 90kg per mu and plant reed after quicklime disinfection, the coverage area of ​​reed accounts for 50% of the pond area, throw in the nutrient substance of slow release (the nutrient substance of slow release is kaolin, h...

Embodiment 2

[0030] A kind of crab culture method, comprises the following steps:

[0031] 1) Pond selection: Choose a water area with good water quality, no pollution, and a flat bottom, surround it with a fence, and build a pond. The depth of the pond is 1.2m, and 0.8m high anti-escape facilities are installed around it. filter screen, drain the water in the pond, remove the natural enemies of crabs, expose to the sun for 5 days, and obtain an empty pond;

[0032] 2) Pond environment construction: install hoses with multiple air outlets at the bottom and wall of the pool, the hoses are connected to the aerator, and the oxygen is filled into the pond through the aerator and hoses to avoid suffocation of the crabs; then Put 1m deep water into the pond, put quicklime in the proportion of 80kg per mu for disinfection, and then plant reed and Elodea. , the mixture of hydroxyapatite and decomposed farmyard manure, the weight ratio is 7:3:2), place shelters, adjust the water temperature, disso...

Embodiment 3

[0038] A kind of crab culture method, comprises the following steps:

[0039] 1) Pond selection: Choose a water area with good water quality, no pollution, and a flat bottom, surround it with a fence, and build a pond. The pond is 1m deep, and 0.7m high anti-escape facilities are installed around it. net, drain the water in the pond, remove the natural enemies of crabs, expose to the sun for 4 days, and obtain an empty pond;

[0040] 2) Pond environment construction: install hoses with multiple air outlets at the bottom and wall of the pool, the hoses are connected to the aerator, and the oxygen is filled into the pond through the aerator and hoses to avoid suffocation of the crabs; then Put into the deep water of 0.7m in the pond, plant water hyacinth and Elodea after putting in quicklime disinfection in the ratio of 100kg per mu, its coverage area accounts for 45% of the pond area, and throw in slow-release nutrients (slow-release nutrients It is a mixture of kaolin, hydrox...

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Abstract

The invention provides a crab cultivation method. The method includes the steps of firstly, selecting a water area which is good in water quality, free of pollution and flat in bottom, and fencing tobuild a pond; secondly, building a pond environment; thirdly, feeding, to be more specific, placing juvenile crabs into the pond, wherein water temperature during the juvenile crab placing is 10-20 DEG C, and density of the juvenile crabs is 600-700 / mu; feeding the juvenile crabs with animal-source feed once in the morning and once in the evening from the first week to the sixth week, wherein thefeed quantity is 6-8% of the body weight of the crab; after the seventh week, feeding the crabs with traditional Chinese medicine feed, and the feed quantity is 10-12% of the body weight of the crab.By the method, the crabs are healthy and pollution-free and can grow fast, the virus resistance of the crabs can be enhanced, and the quality of the crabs can be increased.

Description

technical field [0001] The invention belongs to the field of crab cultivation, and in particular relates to a crab cultivation method. Background technique [0002] Crabs, also known as river crabs, are freshwater crustaceans that grow up in freshwater. The crab meat is delicious and nutritious. Crab has been generally recognized as a delicacy by Chinese and overseas people. In the production of river crabs, it has also realized the transformation from quantity speed type to quality benefit type, from "big crab farming" to "big crab farming", especially paying more attention to ecology, safety, environmental protection, health, and pollution-free The cultivation of aquatic products has higher and higher requirements on the quality of aquatic products. [0003] For now, the simple pursuit of the high-density, high-yield small-scale commercial crabs in the past no longer has a competitive advantage and does not meet market demand. It is difficult to sell, the market price is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A23K50/80
CPCA01K61/59A23K50/80Y02A40/81Y02A40/818
Inventor 黄典亮
Owner HEFEI KANGQINGYUAN BREEDING CO LTD
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