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Esbiothrin type pesticide polluted pond repairing and river crab aquaculture method

A pyrethroid, pond technology, applied in chemical instruments and methods, fish farming, water/sludge/sewage treatment, etc., can solve the problems of poor quality, low yield of river crabs, easy to die in large numbers, etc. The effect of increasing production and income obviously and improving the survival rate

Inactive Publication Date: 2017-06-06
FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of low yield, poor quality and easy mass death of river crabs cultured in ponds damaged by pyrethroids, and to invent a method for repairing ponds damaged by pyrethroids and cultivating river crabs, so as to reduce the number of river crabs in the area where the drugs are used. reduce the incidence of disease in the process, restore the benign development of the river crab farming industry, and improve the economic benefits of farmers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for repairing a pond damaged by pyrethroids and cultivating river crabs, the main steps of which are as follows:

[0036] 1. Rotate the bottom mud of the pond, add microbial agents, and dry the bottom of the pond to degrade pyrethrin.

[0037] When the pond is repaired, the water in the pond is drained, and the bottom mud of the pond is plowed at a depth of 40 cm, so that the upper and lower soil layers can be exchanged evenly. After the bottom mud is plowed, the pond is filled with pyrethroid-free exogenous water filtered through at least 80 mesh bags, and the amount of water inflow is enough to keep the bottom of the flat bottom pond and the middle platform of the ring ditch pond moist. And apply the pyrethroid-degrading bacteria preparation or EM bacteria and bacillus preparations to degrade the pyrethroids in the sediment by using microorganisms. After the water is released, the bottom of the pool is dried for more than 90 days.

[0038] 2. Apply quicklim...

Embodiment 2

[0058] A method for repairing a pond damaged by pyrethroids and cultivating river crabs, the main steps of which are as follows:

[0059] 1. Rotate the bottom mud of the pond, add microbial agents, and dry the bottom of the pond to degrade pyrethrin.

[0060] When the pond is repaired, the water in the pond is drained, and the bottom mud of the pond is plowed at a depth of 35 cm to make the upper and lower soil layers exchange evenly. After the bottom mud is plowed, the pond is filled with pyrethroid-free exogenous water filtered through at least 80 mesh bags, and the amount of water inflow is enough to keep the bottom of the flat bottom pond and the middle platform of the ring ditch pond moist. And apply the pyrethroid-degrading bacteria preparation or EM bacteria and bacillus preparations to degrade the pyrethroids in the sediment by using microorganisms. After the water is released, the bottom of the pool is dried for more than 90 days.

[0061] 2. Apply quicklime to prom...

Embodiment 3

[0081] A method for repairing a pond damaged by pyrethroids and cultivating river crabs, the main steps of which are as follows:

[0082] 1. Rotate the bottom mud of the pond, add microbial agents, and dry the bottom of the pond to degrade pyrethrin.

[0083] When the pond is repaired, the water in the pond is drained, and the bottom mud of the pond is plowed at a depth of 45 cm to make the upper and lower soil layers exchange evenly. After the bottom mud is plowed, the pond is filled with pyrethroid-free exogenous water filtered through at least 80 mesh bags, and the amount of water inflow is enough to keep the bottom of the flat bottom pond and the middle platform of the ring ditch pond moist. And apply the pyrethroid-degrading bacteria preparation or EM bacteria and bacillus preparations to degrade the pyrethroids in the sediment by using microorganisms. After the water is released, the bottom of the pool is dried for more than 90 days.

[0084] 2. Apply quicklime to prom...

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Abstract

The invention discloses an esbiothrin type pesticide polluted pond repairing and river crab aquaculture method which is characterized by comprising the following steps: 1, carrying out rotary tillage on bottom sediment of a pond, adding a microbial preparation, and airing the pond bottom to degrade esbiothrin; 2, applying quick lime to promote degrading of the esbiothrin; 3, planting aquatic plants to degrade the esbiothrin; 4, regularly using the microbial preparation to promote the degrading of the esbiothrin; 5, carrying out stocking on high-quality crab seeds; 6, carrying out stocking on freshwater shrimps and spiral shells in the crab pond at the same time to clear away residual baits and improve the water quality, and supplying live baits; 7, installing a micropore aerator in the crab pond; 8, carrying out reasonable maintenance through the aquatic plants; 9, throwing high-quality feeds; 10, controlling the water depth for water quality adjustment. The esbiothrin type pesticide polluted pond repairing and river crab aquaculture method is simple, feasible, small in investment cost and high in benefit, and has extremely large popularization value.

Description

technical field [0001] The invention relates to an aquaculture method, in particular to a method for cultivating river crabs on polluted water, in particular to a method for repairing a pond damaged by pyrethroids and cultivating river crabs. Background technique [0002] In 2015 and 2016, large-scale river crab hepatopancreas necrosis occurred in some breeding areas such as Xinghua, Jiangsu. The main manifestations are whitening and atrophy of the hepatopancreas of sick crabs, accumulation of water in the body, muscle atrophy, soft shell, and weakness of movement, commonly known as "water deflated". Son" disease. According to the survey of the fishery department in the affected area, the disease occurred in a large area of ​​Xinghua in 2015, and the scope, time, and severity of the disease in 2016 exceeded that of 2015. The affected pond area accounted for 32.3% of the surveyed area, and the mortality rate was 14.2%, which seriously affected the breeding. efficiency and pr...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F11/02A01K61/59A01K63/00C02F101/30C02F103/20
CPCA01K63/00C02F1/00C02F3/32C02F3/34C02F9/00C02F11/02C02F2101/306C02F2103/20Y02A40/81
Inventor 葛家春邓燕飞徐宇杨志强钱志强杨鸳劼许志强柏如发潘建林
Owner FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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