River crab and cray polyculture method

A lobster and river crab technology, applied in fish farming, climate change adaptation, animal feed, etc., can solve the problems of small number of crayfish, unscientific management, low survival rate, etc., to reduce mutual killing, improve survival rate, and survive. high rate effect

Inactive Publication Date: 2017-07-14
铜仁市凯盛水产养殖有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This year, Jiangnan and other places have begun to interbreed river crabs and lobsters, and achieved good results. However, there are still problems such as low survival rate, relatively small number of intercultured crayfish, low yield and unscientific management.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Cleaning of ponds: 1 pond mouth with an area of ​​100 mu. It is a pond transformed by using low-lying land. Each pond is excavated around an 8-meter-wide circular ditch with a depth of 0.8 meters and a pond table with a depth of 1.2 meters. Rice, the bottom is loam, the water source is mountain spring water, the water volume is sufficient, the water quality is pollution-free, and the water intake and drainage are convenient. A special anti-escape plastic film is used around the pond to build an anti-escape wall. Pond microporous oxygenation facilities and online dissolved oxygen monitors. In winter, the pond has been remodeled to remove excess silt to ensure that the bottom of the pond is flat and the silt is 10 cm. Freezing and exposure methods are used to kill bacteria and viruses at the bottom of the pond, improving For the physical and chemical properties of the soil, in mid-February, 125 kg per mu of quickliming water was poured into the whole pool for disinfect...

Embodiment 2

[0036] (1) Cleaning of ponds: 1 pond mouth with an area of ​​100 mu. It is a pond transformed by using low-lying land. Each pond is excavated around an 8-meter-wide circular ditch with a depth of 0.8 meters and a pond table with a depth of 1.2 meters. Rice, the bottom is loam, the water source is mountain spring water, the water volume is sufficient, the water quality is pollution-free, and the water intake and drainage are convenient. A special anti-escape plastic film is used around the pond to build an anti-escape wall. Pond microporous oxygenation facilities and online dissolved oxygen monitors. In winter, the pond has been remodeled to remove excess silt to ensure that the bottom of the pond is flat and the silt is 10 cm. Freezing and exposure methods are used to kill bacteria and viruses at the bottom of the pond, improving For the physical and chemical properties of the soil, in mid-February, 125 kg per mu of quickliming water was poured into the whole pool for disinfect...

Embodiment 3

[0047](1) Cleaning of ponds: 1 pond mouth with an area of ​​100 mu. It is a pond transformed by using low-lying land. Each pond is excavated around an 8-meter-wide circular ditch with a depth of 0.8 meters and a pond table with a depth of 1.2 meters. Rice, the bottom is loam, the water source is mountain spring water, the water volume is sufficient, the water quality is pollution-free, and the water intake and drainage are convenient. A special anti-escape plastic film is used around the pond to build an anti-escape wall. Pond microporous oxygenation facilities and online dissolved oxygen monitors. In winter, the pond has been remodeled to remove excess silt to ensure that the bottom of the pond is flat and the silt is 10 cm. Freezing and exposure methods are used to kill bacteria and viruses at the bottom of the pond, improving For the physical and chemical properties of the soil, in mid-February, 125 kg per mu of quickliming water was poured into the whole pool for disinfecti...

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PUM

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Abstract

The invention discloses a river crab and cray polyculture method. The river crab and cray polyculture method comprises the following steps: cleaning up of a pond, planting of water plants, throwing in of snails, stocking of seeds, throwing in of feeds and final-period management. Scientific management is adopted to reduce the morbidity, so that the survival rate and the yield are improved; and the river crab and cray polyculture method has favorable economical benefits.

Description

technical field [0001] The invention belongs to the field of freshwater aquaculture, and in particular relates to a method for polyculture of river crabs and crayfish. Background technique [0002] River crab is a kind of economic crab, also known as hairy crab, hairy crab, clear water crab or crab, which is a well-known delicacy in China. Its chelicerae are used for feeding and fighting against enemies, and the inner and outer edges of the palm are densely covered with hairs, hence the name mitten crab. Hairy crab is a delicacy that people love. It is not only delicious but also has high nutritional value. [0003] Crayfish are also called Procambarus clarkii, red crayfish and freshwater crayfish. It is shaped like a shrimp and has a hard shell. The adult is about 5.6-11.9 cm long, dark red, the carapace part is nearly black, and there is a wedge-shaped stripe on the back of the abdomen. Juvenile shrimps are uniform gray, sometimes with black ripples, long and narrow cl...

Claims

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Application Information

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IPC IPC(8): A01K61/59A23K50/80A23K10/30A23K10/22
CPCY02A40/81Y02A40/818
Inventor 王万明冯碧凤雷波
Owner 铜仁市凯盛水产养殖有限公司
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