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Polyculture method of Scylla serrata and perches

A technology for blue crabs and perch, which is applied in botany equipment and methods, fish farming, climate change adaptation, etc., can solve the problem of difficult food, fattening and growth of these fish, many diseases of blue crabs in artificial monoculture, and the supply of blue crabs Rare number and other problems, to achieve the effect of improving survival rate and appearance, reducing mass reproduction, and reducing breeding costs

Inactive Publication Date: 2018-06-01
钦州市钦州港国鸿水产养殖专业合作社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent decades, industrial toxic sewage, pesticides, and chemical fertilizers have seriously polluted rivers and estuaries near the sea, making it difficult for this fish to enter rivers and lakes for food, fattening, and growth; See
[0004] Scylla is one of the important seawater crab species in my country, but due to too many diseases in artificial monoculture of Scylla, the survival rate is low
The supply of blue crabs is scarce, which is far from meeting the market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for polyculture of blue crabs and sea bass, comprising the following steps:

[0022] (1) In July 2016, in Qinzhou Port, Guangxi, a pond with a water depth of 2 meters and an area of ​​3 mu was selected. Thoroughly disinfect the whole pond after clearing the internal silt, strengthening the pond embankment to prevent leakage, and drying the pond.

[0023] (2) Plant algae at the bottom of the pond one month in advance, with a planting density of 20 algae / square meter. At the same time, 5 layers of barbed wire are set in the pond, and there are supporting pillars between each layer of barbed wire. The distance from the bottom of the pond is 10cm, and each layer of barbed wire is provided with a drop opening.

[0024] (3) Through the delivery openings arranged on the barbed wire, start to put in healthy and disease-free blue crabs in each layer of barbed wire. The size of the blue crabs put in is 3cm in shell length; Put in perch fry, and the stocking density is ...

Embodiment 2

[0034] A method for polyculture of blue crabs and sea bass, comprising the following steps:

[0035] (1) In August 2016, in Qinzhou Port, Guangxi, a pond with a water depth of 2.5 meters and an area of ​​10 mu was selected. Thoroughly disinfect the whole pond after clearing the internal silt, strengthening the pond embankment to prevent leakage, and drying the pond.

[0036] (2) Plant algae at the bottom of the pond 2 months in advance, with a planting density of 30 algae / square meter. At the same time, 10 layers of barbed wire are set in the pond, and there are supporting pillars between each layer of barbed wire. The distance from the bottom of the pond is 15cm, and each layer of barbed wire is provided with a drop opening.

[0037] (3) Through the openings set on the barbed wire, start to put in healthy and disease-free blue crabs in each layer of barbed wire. The size of the blue crabs put in is 5cm in length of the shell; finally above the barbed wire on the top layer, s...

Embodiment 3

[0047] A method for polyculture of blue crabs and sea bass, comprising the following steps:

[0048] (1) In September 2016, in Qinzhou Port, Guangxi, a pond with a water depth of 2.2 meters and an area of ​​5 mu was selected. Thoroughly disinfect the whole pond after clearing the internal silt, strengthening the pond embankment to prevent leakage, and drying the pond.

[0049] (2) Plant algae at the bottom of the pond one month in advance, the planting density is 25 strains of algae / square meter, and at the same time set up 8 layers of barbed wire in the pond, and there are supporting pillars between each layer of barbed wire, wherein the bottom barbed wire is separated from the The distance from the bottom of the pond is 12cm, and each layer of barbed wire is provided with a drop opening.

[0050] (3) Start to put healthy and disease-free blue crabs into each layer of barbed wire through the openings provided on the wire netting. The size of the blue crabs put in is 4cm in s...

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Abstract

The invention discloses a polyculture method of Scylla serrata and perches, comprising cleaning mud in a pond that uses mixed silt as a base, has smooth water access ditches and has water exchange equipment and aerating equipment, subjecting a pond dike to leak-proof reinforcement, disinfecting, planting algae at the bottom of the pond, setting layers of wire mesh at the bottom, stocking Scylla serrata in the wire mesh, stocking perches above the wire mesh, feeding the upper perches with common perch feed while the lower crabs of Scylla serrata are not specially fed with feed, disinfecting thepond with quick lime at intervals of 15-20 days during culturing, discharging lime water, and re-injecting filtered sea water. The polyculture method of Scylla serrata and perches makes use of livinghabits and preying features of perches and Scylla serrata, the bottom environment is effectively improved, and disease attack chances are decreased; culturing cost is lowered, and Scylla serrata is provided with higher survival rate and better condition.

Description

technical field [0001] The invention belongs to the field of marine product cultivation, and in particular relates to a mixed culture method of mud crabs and perch. Background technique [0002] Commonly known as Scylla serrata and red sturgeon, blue crabs are distributed in harbors and coastal mangrove swamps in southern China, Japan, India, Africa and other tropical and subtropical waters. In my country, they are mainly produced in Zhejiang, Fujian, Taiwan, south of the Yangtze River estuary. Along the coast of Guangdong and Guangxi, blue crabs have delicious meat, unique flavor, rich nutrition, and can also be used as medicine. They are famous edible crabs with high economic value. [0003] Perch used to be a very common edible fish along the coasts of the Bohai Sea, the Yellow Sea and the East my country Sea. In recent decades, industrial toxic sewage, pesticides, and chemical fertilizers have seriously polluted rivers and estuaries near the sea, making it difficult for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G33/00A01K61/10A01K61/59
CPCA01G33/00A01K61/10A01K61/59Y02A40/80Y02A40/81
Inventor 李全
Owner 钦州市钦州港国鸿水产养殖专业合作社
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