Method for ecologically breeding river crabs

An ecological farming and river crab technology, applied in fish farming, application, climate change adaptation and other directions, can solve the problems of imperfect artificial crab farming experience, destruction of the ecological environment of river crabs, low survival rate of river crabs, etc., to prevent crab carapace ulcers, Increase the dissolved oxygen in water and the effect of fresh and tender meat

Inactive Publication Date: 2018-04-13
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 cultivating river crabs, and people's experience in artificially cultivating crabs is still not perfect
Crab breeding requires different bait and growth environment at different stages. Many technicians

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] A method for ecological breeding of river crabs, including the following steps:

[0026] 1) Pond selection: Choose a water area with good water quality and no pollution and a flat bottom, fence and build a pond. The pond is 1m deep and equipped with 0.6mm high escape prevention facilities. The pond has water inlets and outlets, and the water inlets and outlets are set with 40 mesh filters. Nets, dry the water in the pond, remove the natural enemies of river crabs, and expose them to the sun for 3 days to obtain an empty pond;

[0027] 2) Pond environment construction: set up a hose with multiple air outlets at the bottom and wall of the pool, the hose is connected to the aerator, and the pond is filled with oxygen through the aerator and the hose to prevent the crabs from suffocating; Put 0.8m deep water into the pond, put in quicklime at a ratio of 90kg per mu, and plant reeds after disinfection. The reeds cover 50% of the pond area, and slow-release nutri...

Example Embodiment

[0033] Example 2

[0034] A method for ecological breeding of river crabs, including the following steps:

[0035] 1) Pond selection: Choose a water area with good water quality and no pollution and a flat bottom, fence and build a pond. The pond is 1.2m deep and 0.8m high anti-escape facilities are set around. The pond has water inlets and outlets with 50 meshes. Filter the net, drain the water in the pond, remove the natural enemy creatures of river crabs, and get a vacant pond in the sun for 5 days;

[0036] 2) Pond environment construction: set up a hose with multiple air outlets at the bottom and wall of the pool, the hose is connected to the aerator, and the pond is filled with oxygen through the aerator and the hose to prevent the crabs from suffocating; Put 1m of water into the pond, put in quicklime at a rate of 80kg per acre, and plant reeds and Elodea after disinfection, covering an area of ​​55% of the pond area, and adding slow-release nutrients (the slow-release nutrie...

Example Embodiment

[0042] Example 3

[0043] A method for ecological breeding of river crabs, including the following steps:

[0044] 1) Pond selection: choose a water area with good water quality and no pollution and a flat bottom, fence and build a pond. The pond is 1m deep and 0.7m high anti-escape facilities are set around. The pond has water inlets and outlets, and the water inlets and outlets are set with 30 mesh filters. Net, dry the water in the pond, remove the natural enemy creatures of river crabs, and get a vacant pond in the sun for 4 days;

[0045] 2) Pond environment construction: set up a hose with multiple air outlets at the bottom and wall of the pool, the hose is connected to the aerator, and the pond is filled with oxygen through the aerator and the hose to prevent the crabs from suffocating; Put 0.7m deep water into the pond, put in quicklime at a rate of 100kg per mu, and plant water hyacinth and Elodea after disinfection, covering an area of ​​45% of the pond area, adding slow-r...

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PUM

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Abstract

The invention proposes a method for ecologically breeding river crabs. The breeding method includes the following steps of (1) selection of a pond; (2) construction of a pond environment; (3) placingof young river crabs, wherein young river crabs are placed in the pond, an ecological floating bed is arranged on the water surface, desmodium heterocarpum(L.) DC. is planted on the ecological floating bed, and the area of the ecological floating bed accounts for 2/3 to 3/4 of the breeding area; (4) feeding and management, wherein in the process of breeding the river crabs, it is necessary to observe and adjust the breeding conditions frequently, in the first week, a pellet feed of egg yolk is fed 3 to 4 times a day and the daily feed amount is 100% to 120% of the amount of living river crabs,from the second week to the seventh week, an animal feed is fed 2 to 3 times a day and the daily feeding amount is 5% to 8% of the amount of living river crabs, and after that, a mixture of an animalfeed and a traditional Chinese medicine feed is fed 1 to 3 times a day and the daily feeding amount is 2% to 5% of the amount of living river crabs. The breeding method creates a favorable ecologicalenvironment conducive to the growth of the river crabs, promotes rapid growth of the river crabs, enhances anti-virus immunity of the river crabs, and improves the quality of the river crabs.

Description

technical field [0001] The invention belongs to the field of river crab cultivation, and in particular relates to a method for ecological cultivation of river crabs. Background technique [0002] Crabs, also known as river crabs, are freshwater crustaceans that grow up in fresh water. The meat of river crabs is delicious and nutritious. River 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 dema...

Claims

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Application Information

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IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 黄典亮
Owner HEFEI KANGQINGYUAN BREEDING CO LTD
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