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Method of high-yield breeding of crawfish in rice field

A rice field and lobster technology, applied in the field of lobster farming, can solve the problems of easy death and low yield of juvenile shrimp, and achieve the effect of promoting organic combination, increasing yield, and ensuring living space

Inactive Publication Date: 2018-04-24
湖北省小龙虾产业技术研究院有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The yield of crayfish cultured in paddy fields in the prior art is generally low, and juvenile shrimps are extremely prone to death in paddy fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The present invention proposes a method for high-yield paddy field culture crayfish, comprising the steps of:

[0021] S1: Choose paddy fields with sufficient water sources, convenient irrigation and fertile soil, and ensure that the surrounding paddy fields have a good ecological environment and no pollution sources;

[0022] S2: Dig a rice ditch in the rice field in S1, and the size of the rice ditch is 3.5 meters wide and 1.3 meters deep. When the rice field needs to be drained and transplanted, the unsold juvenile shrimp will have a spacious and sufficient growth The water area effectively guarantees its growth environment, and an isolation net is set at both ends of the rice ditch, and the isolation net needs to penetrate 40cm into the soil to prevent crayfish from escaping;

[0023] S3: After the paddy field is treated in S2, weeds and bait are added to the rice ditch again, and the mass ratio of weeds to bait is 2:1. The number of juvenile shrimps placed is 3000...

Embodiment 2

[0034] The present invention proposes a method for high-yield paddy field culture crayfish, comprising the steps of:

[0035] S1: Choose paddy fields with sufficient water sources, convenient irrigation and fertile soil, and ensure that the surrounding paddy fields have a good ecological environment and no pollution sources;

[0036] S2: Dig a rice ditch in the rice field in S1, and the size of the rice ditch is 3.8 meters wide and 1.4 meters deep. When the paddy field needs to be drained and transplanted, the unsold juvenile shrimp will have a spacious and sufficient growth The water area effectively guarantees its growth environment, and an isolation net is set at both ends of the rice ditch, and the isolation net needs to penetrate 44cm into the soil to prevent crayfish from escaping;

[0037] S3: After the paddy field is treated in S2, weeds and bait are added to the rice ditch again, and the mass ratio of weeds to bait is 2:1. The number of juvenile shrimps placed is 350...

Embodiment 3

[0048] The present invention proposes a method for high-yield paddy field culture crayfish, comprising the steps of:

[0049] S1: Choose paddy fields with sufficient water sources, convenient irrigation and fertile soil, and ensure that the surrounding paddy fields have a good ecological environment and no pollution sources;

[0050] S2: Dig a rice ditch in the rice field in S1, and the size of the rice ditch is 4.2 meters wide and 1.5 meters deep. When the paddy field needs to be drained and transplanted, the unsold juvenile shrimp will have a spacious and sufficient growth The water area effectively guarantees its growth environment, and an isolation net is set at both ends of the rice ditch, and the isolation net needs to penetrate 47cm into the soil to prevent crayfish from escaping;

[0051] S3: After the paddy field is treated in S2, weeds and bait are added to the rice ditch again, and the mass ratio of weeds to bait is 2:1. The number of juvenile shrimps placed is 450...

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Abstract

The invention discloses a method of high-yield breeding of crawfish in a rice field. The method comprises the following steps: digging rice furrows in the rice field; setting separation nets at the two ends of the rice furrows, wherein the depth of the separation nets into soil is 40-50cm; after the rice field is treated, adding weeds and baits into the rice furrows again; putting juvenile shrimpsinto the rice field at divided periods; after stocking, uniformly spreading lobster feed in the rice field fast and then putting the lobster feed in the rice field every two days on time; changing water in the rice field every six days and ensuring that the depth of the water in the rice field is not less than 6cm; performing sampling inspection on the crawfish; fishing the crawfish after the juvenile shrimps are put into the rice field for 2-3 months and are mature. According to the method, the organic combination of the planting industry and the breeding industry is promoted, so that an ecological coexist chain with a virtuous circle is formed for rice and shrimps, so that resources are effectively saved, the utilization rate of the resources is improved, and the yield of lobsters is greatly improved.

Description

technical field [0001] The invention relates to the technical field of lobster cultivation, in particular to a method for high-yield cultivation of crayfish in paddy fields. Background technique [0002] The scientific name of freshwater crayfish is Procambarus clarkii. The shrimp originated in the United States and was introduced to Nanjing from Japan in the 1930s. After more than 80 years of reproduction and expansion, my country has become the country with the fastest development of freshwater crayfish farming. my country's crayfish farming started in the middle of the last century, mainly concentrated in Hubei, Jiangsu, Anhui and other provinces in the middle and lower reaches of the Yangtze River. In the early stage of crayfish farming, various farming models such as rice fields, ponds, rivers and grass lakes were adopted. Practice has proved that rice fields are the best growth habitats for freshwater crayfish. In the middle and lower reaches of the Yangtze River in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A23K10/20A23K10/22A23K10/26A23K10/30A23K10/37A23K50/80A01G22/22
CPCA01K61/59A23K10/20A23K10/22A23K10/26A23K10/30A23K10/37A23K50/80Y02A40/81Y02A40/818Y02P60/87
Inventor 邹圣碧郑玉林杨岭张雪莹
Owner 湖北省小龙虾产业技术研究院有限公司
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