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Autumn freshwater shrimp breeding control method

A technology for green shrimp and shrimp fry is applied in the field of controlling the autumn propagation of green shrimp, which can solve the problems of low income, lack of oxygen in the green shrimp breeding pond, small size of green shrimp, etc., and achieve the effects of reducing costs, improving commodity rate and economic benefits.

Inactive Publication Date: 2015-07-22
镇江山水湾生态农业开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive autumn breeding of shrimp seedlings needs to consume a lot of oxygen in the pond, which leads to the lack of oxygen in the freshwater shrimp breeding pond and affects the cultivation of adult shrimp
A large number of shrimp seedlings that reproduce in autumn compete with the original freshwater shrimp in the pond for food and space, interacting and restricting each other, resulting in the final raised freshwater shrimp being small in size, poor in quality, low in commodity rate, and low in market price
Lead to high production costs and low returns

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] The pond covers an area of ​​3 mu, and the average water depth is 0.8 meters. Some freshwater shrimps are caught. After inspection, it is found that most of the freshwater shrimps have eggs and the eggs have developed to the eye point stage. After 7 days, use an 80-mesh net to check the water body and find a large number of larvae. Dissolve 54 grams of 10% abamectin in 100 kg of water, then splash the whole pond on the pond, and re-check the water body the next day , no larvae were found.

example 2

[0018] The pond covers an area of ​​5 mu, and the average water depth is 0.8 meters. Some freshwater shrimps were caught. After inspection, it was found that most of the freshwater shrimps had eggs and the eggs had developed to the eye point stage. After 8 days, check the water body with an 80-mesh net, and find a large number of larvae. Dissolve 100 grams of 10% abamectin in 120 kg of water, then splash the whole pond on the pond, and re-check the water body the next day , no larvae were found.

example 3

[0020] The pond covers an area of ​​8 mu, and the average water depth is 0.8 meters. Some freshwater shrimps are caught. After inspection, it is found that most of the freshwater shrimps have eggs and the eggs have developed to the eye point stage. After 7 days, use an 80-mesh net to check the water body and find a large number of larvae. Dissolve 176 grams of 10% abamectin in 150 kg of water, then splash the whole pond on the pond, and re-check the water body the next day , no larvae were found.

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Abstract

The invention belongs to the technical field of aquaculture and relates to an autumn freshwater shrimp breeding control method. The method comprises the following steps that 1, shrimp bodies are checked, during 20 days after shrimp larvae are thrown, some freshwater shrimps are caught, whether the freshwater shrimps breed eggs is carefully checked, and the development degree is observed; 2, zoaea are checked, and whether a large number of the zoaea exist in a pond is checked 7-10 days when it is found that the shrimp eggs are developed into the eyespot stage; 3, splashing is carried out, and an abamectin solution is dissolved into water and splashed into the pond. Abamectin is agricultural or veterinary-used pesticide widely used, and has an effective effect of killing the zoaea of the freshwater shrimps without influencing the freshwater shrimps, the problem of excessive autumn breeding in the freshwater shrimp cultivation process is effectively solved, the freshwater shrimp cultivation cost is reduced, and the commodity rate and economic benefits of freshwater shrimp cultivation are increased.

Description

technical field [0001] The invention belongs to the technical field of aquaculture and relates to a method for controlling autumn multiplication of freshwater shrimp. Background technique [0002] Green shrimp (Macrobrachium nipponense), scientific name Macrobrachium nipponense, is an important freshwater economic shrimp in my country. Green shrimp has the advantages of rich nutrition, tender meat and delicious taste. Due to the increase of people's demand for freshwater shrimp, and the advantages of low cost, fast income and high profit of freshwater shrimp farming, the development of freshwater shrimp farming industry has been promoted. There are also more and more problems faced in the process of freshwater shrimp farming, among which excessive autumn multiplication is a relatively serious problem. [0003] Freshwater shrimps have strong reproductive ability. The 1.5-2.0cm shrimp seedlings stocked in July will grow for a month, and the female shrimp will be able to repr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 蒋速飞傅洪拓熊贻伟管建洪程兴华吴姗姗
Owner 镇江山水湾生态农业开发有限公司
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