High-survival-rate cultivation method of freshwater crayfish

A freshwater crayfish and culture method technology, applied in the field of high survival rate culture of freshwater crayfish, can solve the problems of poor daily management methods, poor quality of crayfish, and high mortality, so as to ensure quality and nutritional value, reduce morbidity, and reduce morbidity. Growth-promoting effect

Inactive Publication Date: 2016-03-23
袁生咬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Freshwater crayfish, also known as crayfish, scientific name Procambarus clarkii, originated in the United States, and spread to Nanjing in my country in the 1920s and 1930s. Because of its delicious meat, it is more and more popular among people and has a broad Therefore, many people now start to raise crayfish artificially, but the current breeding method of freshwater crayfish is basically extensive cultivation, which is completely bred by natural bait, and the daily management method is not good, resulting in poor quality and mortality of the cultured crayfish High, low output

Method used

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Experimental program
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Effect test

Embodiment 1

[0021] A method for cultivating freshwater crayfish with a high survival rate, comprising the steps of:

[0022] (1) Breeding pond preparation: choose a breeding pond with an area of ​​3 mu, the depth of the pond is 1.8m, the slope of the pond wall is 55~60°, the width of the pond is 1.5m, and the height is 0.8m around the pond, and the inner wall is smooth An anti-escape board, the center of the pool is provided with a cross-shaped mud ridge, and the width of the mud ridge is 1.2m. A water inlet and a water outlet are respectively provided at both ends of the culture pond, and an anti-escape net is provided at the water inlet and the water outlet;

[0023] (2) Pre-cultivation treatment: remove the sludge at the bottom of the breeding pond, and spray quicklime for disinfection. At the same time, after exposing the breeding pond to the sun for 3 days, apply decomposed farm manure at an amount of 250 kg per mu, and finally put pebbles at the bottom of the pond. The thickness of t...

Embodiment 2

[0036] A method for cultivating freshwater crayfish with a high survival rate, comprising the steps of:

[0037] (1) Breeding pond preparation: choose a breeding pond with an area of ​​3 mu, the depth of the pond is 1.5m, the slope of the pond wall is 60~65°, the width of the pond is 2m, and the height is 0.6m around the pond and the inner wall is smooth. Anti-escape board, a well-shaped mud ridge is set in the center of the pond, the width of the mud ridge is 1.2m, and a water inlet and a water outlet are respectively provided at both ends of the culture pond, and an escape net is provided at the water inlet and the water outlet;

[0038] (2) Pre-cultivation treatment: remove the sludge at the bottom of the breeding pond, and spray quicklime for disinfection. At the same time, after exposing the breeding pond to the sun for 3 days, apply decomposed farm manure at an amount of 300 kg per mu, and finally put pebbles at the bottom of the pond and place around the pond. into tree...

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Abstract

The invention discloses a high-survival-rate cultivation method of freshwater crayfish. The cultivation method includes the steps of firstly, preparing a cultivation pond; secondly, processing before cultivation; thirdly, culturing water; fourthly, planting aquatic plants; fifthly, stocking crayfish fries; sixthly, performing daily management. The cultivation method has the advantages that the cultivation pond is elaborately designed and processed in advance, the morbidity of the crayfish is lowered from the source, the designed mud ridges, cobbles and tree roots conform to the physiological habits and needs of the crayfish, the growth of the crayfish at different time periods can be promoted, daily management such as scientific feeding and water quality adjusting is performed, the nutrition requirements of the crayfish is guaranteed, a good ecological environment is built, the survival rate of the crayfish is increased greatly, no chemical reagents and hormones are used, and the quality and nutritional value of the crayfish are guaranteed.

Description

technical field [0001] The invention belongs to the field of cultivation, and in particular relates to a method for cultivating freshwater crayfish with a high survival rate. Background technique [0002] Freshwater crayfish, also known as crayfish, scientific name Procambarus clarkii, originated in the United States, and spread to Nanjing in my country in the 1920s and 1930s. Because of its delicious meat, it is more and more popular among people and has a broad Therefore, many people now start to raise crayfish artificially, but the current breeding method of freshwater crayfish is basically extensive cultivation, which is completely bred by natural bait, and the daily management method is not good, resulting in poor quality and mortality of the cultured crayfish High, low yield. Contents of the invention [0003] In order to solve the above problems, the present invention aims to provide a method for cultivating freshwater crayfish with a high survival rate. The crayfish...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 袁生咬
Owner 袁生咬
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