Ecological breeding method of scylla serrata

A technology for ecological farming and blue crabs, which is applied in fish farming, application, climate change adaptation, etc., can solve problems affecting the growth of blue crabs and discounting the freshness of blue crab meat, so as to save breeding costs, increase survival rate, and improve benefit effect

Inactive Publication Date: 2013-04-24
潘少波
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  • Abstract
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  • Application Information

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Problems solved by technology

The above-mentioned three breeding methods adopt the feed feeding method, which changes the living habits of the blue crabs, and the food they prey on changes accordingly, which naturally affects the growth of the blue cra...

Method used

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  • Ecological breeding method of scylla serrata
  • Ecological breeding method of scylla serrata

Examples

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Embodiment 1

[0015] (1) Selection of breeding cages: such as figure 1 As shown, the culture net cage is made up of inner box 5 and outer box 2, and outer box 5 is fence type hollow, and plastic foam 6 is fixed on two ends, and plastic foam 6 has buoyancy, rises or falls with the rise and fall of seawater, thereby drives The outer box 2 moves up or down; the two ends of the outer box 2 are also fixed with a movable ring 3, and the movable ring 3 is sleeved on the fixed rod 1, and the outer case 2 moves up and down in the fixed rod 1 with the movable ring 3, and the fixed rod 1 The bottom end of the bottom is pointed and can be directly inserted into the tidal flat. A limit block 7 is also arranged on the fixed rod 1. When the outer box 2 moves upwards, it is limited by the limit block 7 and cannot move upwards; There are inner boxes 5, and one outer box 2 is equipped with 1-10 inner boxes 5. The inner boxes 5 are arranged in a single layer in the outer box 2 and fixed with the bottom of th...

Embodiment 2

[0020] (1) Selection of breeding cages: such as figure 2 In the shown embodiment, the four corners of the outer box 2 are respectively fixed with movable rings 3, and the four movable rings 3 are respectively sleeved on the four fixed rods 1, and the outer case 2 moves up and down in the fixed rods 1 along with the movable rings 3. Move, the bottom end of fixed rod 1 is pointed shape, can be directly inserted in the tidal flat, fixed rod 1 is also provided with limit block 7, when outer box 2 moves upwards, it is limited by limit block 7 and can no longer move upwards; All the other implementations are the same as in Example 1;

[0021] (2) Fixed net cage: in an outer box 2, five inner boxes 5 are set, and the inner box 5 is arranged in a single layer. The inner box 5 is put into the outer box 2 and fixed on the bottom of the outer box, and the outer box 2 is placed in the sea On the beach, the fixed rod 1 is inserted into the beach to fix the outer box 2, and the outer box ...

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Abstract

The invention discloses an ecological breeding method of scylla serrata. At present, main scylla serrata breeding modes include a pond type, an enclosure type and a net cage type, and in the breeding modes, scylla serrata growing together can fight and scramble for food with pincers to lead to mutual killing and injuries, so that breeding survival rate is affected. The method adopts the mode that inner cages are sleeved by an outer cage and one scylla serrata is bred in each inner cage, and includes the technical steps of (1) breeding net cage selection; (2) net cage fixing; (3) scylla serrata breeding; and (4) scylla serrata catching. Since only one scylla serrata is bred in single inner cage, mutual pincers fight of the scylla serrata is avoided, the survival rate is increased, and the scylla serrata growing in the inner cages can eat submarine plankton and small animals on mud flats along with seawater tide rising and falling, and further nutritional requirements of the scylla serrata are guaranteed. The ecological breeding method is capable of increasing breeding density, 1000-1500 scylla serrata can be bred on per mu of mud flat, 400-500 kilograms of scylla serrata/per mu are gained, and accordingly mud flat resources are utilized to the greatest extent.

Description

technical field [0001] The invention relates to an ecological breeding method for blue crabs, which belongs to the technical field of marine culture. Background technique [0002] Scylla serrata ( Scylla serrata) Commonly known as blue crabs and red sturgeons, they are distributed in southern China, Japan, India, Africa and other tropical and subtropical harbors and coastal mangrove swamps. In my country, they are mainly produced in Zhejiang, Fujian, Taiwan, Guangdong and Guangxi coasts south of the Yangtze River estuary. Scylla serrata has delicious meat, unique flavor, rich nutrition, and can also be used as medicine. It is a famous edible crab with high economic value and great demand in domestic and foreign markets. The main cultured species of coastal culture. With the maturation of breeding technology, the income from breeding mud crabs has become the main source of income for the coastal farming industry. At present, there are mainly several ways to breed mud crabs, ...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 潘少波
Owner 潘少波
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