Seedling desalination method for fresh water aquiculture for penaeus monodon

A freshwater aquaculture, penaeus monodon technology, applied in fish farming, climate change adaptation, animal feed and other directions, can solve problems such as unfavorable aquaculture yield and efficiency, low survival rate of shrimp fry, infection, etc., to prevent injury and death, improve Survival rate, effect of reducing usage

Inactive Publication Date: 2008-07-16
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since seawater cultured shrimp seedlings can be stocked directly without desalination technology, the breeding method is relatively simple, but the disadvantage of this farming method is that they are easily infected by pathogens in seawater, and the survival rate of shrimp seedlings is low, which is not conducive to Improvement of breeding yield and benefit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one: the seed desalination method of a kind of freshwater culture of Penaeus monodon of the present invention adopts following process steps: it mainly comprises four major steps of shrimp seedling temporary raising pond preparation, shrimp seedling temporary cultivation, shrimp seedling desalination and shrimp seedling cultivation:

[0029] 1. Preparation of the temporary storage pond for shrimp fry: Excavate a temporary storage pond with a depth of 1.8 meters, a width of 10 meters, and an area of ​​100-500 square meters in the main pond of Penaeus monodon. Build a pool ridge, the pool ridge is 30 cm high and 40 cm wide, and it is compacted. Quicklime is used for disinfection, and the amount used per mu of shrimp ponds is 75 kg; after 6 days of disinfection, shrimp seedlings are stocked, and the stocking density of shrimp seedlings is 600 tails / m 3 . Before stocking the shrimp seedlings, inject 0.6 meters of fresh water into the holding pond, add sea crysta...

Embodiment 2

[0030] Embodiment two: the present invention is a kind of seed desalination method of freshwater culture of Penaeus monodon, adopts following process steps:

[0031] Shrimp nursery pond preparation: Excavate a temporary pond with a depth of 2.0 meters, a width of 20 meters, and an area of ​​100-500 square meters in the main pond of Penaeus monodon. The pool ridge, the pool ridge is 50 cm high and 60 cm wide, and it is compacted. Quicklime is used for disinfection, and the amount used per mu of shrimp ponds is 90 kilograms; 0.7 meters of fresh water is injected into the shrimp seedlings before stocking, and concentrated seawater with a Baume degree of 10 is added, and then fresh water is injected to make the salinity of the pond water reach 30, and air is suspended in the pond. stone for stirring and oxygenation. Apply 4 kilograms of "Gaoyou brand" compound fertilizer in the holding pool per mu to cultivate natural bait organisms for shrimp feeding, and the transparency of the...

Embodiment 3

[0032] Embodiment three: the present invention is a kind of seed desalination method of freshwater culture of Penaeus monodon, adopts following process step:

[0033] 1. Preparation of the temporary storage pond for shrimp seedlings: Excavate a temporary storage pond with a depth of 2.0 meters, a width of 20 meters, and an area of ​​100-500 square meters in the main pond of Penaeus monodon. Build a pool ridge, the pool ridge is 30 cm high and 40 cm wide, and it is compacted. Quicklime is used for disinfection, and the amount used per mu of shrimp ponds is 80 kilograms; shrimp seedlings are stocked after 7 days of disinfection, and the stocking density of shrimp seedlings is 800 tails / m 3 . Before stocking shrimp seedlings, inject 0.7 meters of fresh water into the holding pond, and add 2 parts of magnesium sulfate, 1.44 parts of calcium chloride, 0.96 parts of potassium chloride and 5.6 parts of sodium chloride, fully stir and dissolve, then measure the salinity, and then pas...

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PUM

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Abstract

The invention relates to a fingerling desalination method for the freshwater culture of a tiger prawn, in particular to the culturing of the seawater economic prawn in freshwater, belonging to the aquaculture technical field. The invention is characterized in that the method comprises the following technique steps: preparing a temporary prawn larva breeding pond; cleaning up the temporary prawn larva breeding pond; sterilizing the temporary prawn larva breeding pond; fertilizing; artificial oxygen increasing facility; the pond affusion and salinity regulating; temporary prawn larva breeding; prawn larva stocking and breeding; prawn larva desalting and salinity regulating; prawn larva cultivating; cleaning up a main breeding pond; communicating the main breeding pond and the temporary prawn larva breeding pond; the freshwater breeding of the prawn larva. The invention can prevent the prawn larva from dying resulted from the sudden change of an osmotic pressure after directly entering the freshwater through the desalting process during the temporary breeding period of the prawn larva, leading the tiger prawn to be able to grow from the seawater into the freshwater after artificial desalting and breeding, which is beneficial to reduce the incidence of the tiger prawn, improve the surviving rate of stocking and breeding of the prawn larva and increase the culturing yield.

Description

technical field [0001] The invention relates to a seed desalination method for freshwater cultivation of Penaeus monodon, in particular to raising seawater economical shrimps in freshwater, and belongs to the technical field of aquaculture. Background technique [0002] Penaeus monodon Fabricius is one of the high-grade seafood economic species in my country. In recent years, due to the aggravation of marine pollution, the morbidity rate of marine aquaculture of Penaeus monodon has remained high, and the mortality rate in the peak period of the disease was even as high as 90%, resulting in huge economic losses. Freshwater aquaculture is an effective way to avoid the harm of pathogens in seawater to Penaeus monodon. At the same time, moving seawater species to freshwater aquaculture can not only provide new aquaculture species for freshwater aquaculture, but also help improve breeding efficiency. Therefore, freshwater species of Penaeus monodon The promotion and application of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K1/18
CPCY02A40/81
Inventor 周鑫徐仁义王进波
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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