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Method for fresh-water cage culture of penaeus vannamei

A technology for cage culture and white shrimp, applied in the field of shrimp culture, can solve the problems of high breeding cost, environmental pollution, occupation of farmland, etc., and achieve the effects of increasing economic benefits, improving quality and output, and reducing input

Inactive Publication Date: 2019-03-01
水富金沙江生物科技有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for a long time, farmers have been cultivating Penaeus vannamei in ponds. This pond cultivation method not only takes up a lot of farmland, but also requires pond bottom improvement after two consecutive uses (two rounds of cultivation), which requires huge investment and high cultivation costs. , high risk and serious environmental pollution

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  • Method for fresh-water cage culture of penaeus vannamei
  • Method for fresh-water cage culture of penaeus vannamei

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Embodiment Construction

[0014] A method for cultivating Penaeus vannamei in a freshwater cage, the cultivating method is as follows:

[0015] (1) Breeding conditions: Choose a freshwater open area with a water depth of more than 20m and a suitable water flow rate to erect a culture cage, and use a three-layer nylon cage cage to breed Penaeus vannamei. The mesh of the innermost layer of the cage is 0.1cm, and the depth of the net 2m, the mesh of the second layer of cages is 0.5cm, the mesh depth is 3m, the mesh of the outermost cage is 1cm, the mesh depth is 5m, and the area of ​​each cage is 25-100m 2 ;

[0016] (2) Water quality control: Determine the location of the cage according to the flow rate of the water in the water area, keep the dissolved oxygen in the cage water after the fish is put in at 7mg / liter or more, the water body is a second-class fishery water, and the natural water temperature is controlled at 23~31℃;

[0017] (3) Throwing in shrimp seedlings: Put in desalinated Penaeus vann...

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Abstract

The invention relates to a method for fresh-water cage culture of penaeus vannamei. The method comprises the steps: selecting a fresh-water open area, of which the water depth is 20m or more and wateris flowing, culturing the penaeus vannamei by adopting three-layer nylon cages, and keeping that the dissolved oxygen of culture water is 7mg / l or more and the water temperature is 23 DEG C to 31 DEGC; stocking desalted juvenile penaeus vannamei into the cages, wherein at a primary stage of stocking of the juvenile penaeus vannamei in the cages, the juvenile penaeus vannamei is cultured for 3 days with a conditioning pond firstly so as to enable the juvenile penaeus vannamei to adapt to water temperature of a water area, and in first 10 days after the juvenile penaeus vannamei is stocked into the cages, drugs for shrimps are fed by adopting punching bags so as to prevent diseases; inter-culturing omnivore fishes in second-layer cages and third-layer cages, so as to clear algae attachments and shrimp shells from inner meshes; in first 30 days of culture, feeding liver protecting feed, and then, feeding running water earthworms; and carrying out fishing after 3 to 4 months of culture.The method disclosed by the invention is scientific and reasonable, the survival rate of fishes and shrimps is high, the cost of culture is low, the economic benefit is remarkable, and the environmental pollution is low, so that the method is particularly adaptable to large-scale culture.

Description

technical field [0001] The invention belongs to the technical field of shrimp breeding methods. Background technique [0002] my country has a vast freshwater area. In recent years, the freshwater aquaculture industry of Penaeus vannamei has developed rapidly, and the aquaculture output has continued to rise to meet the continuous needs of consumers. However, for a long time, farmers have been cultivating Penaeus vannamei in ponds. This pond cultivation method not only takes up a lot of farmland, but also requires pond bottom improvement after two consecutive uses (two rounds of cultivation), which requires huge investment and high cultivation costs. , high risk and serious environmental pollution. Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings of the existing pond culture technology and provide a freshwater cage culture method for Penaeus vannamei that does not occupy farmland, can reduce environmental pollution, has ...

Claims

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Application Information

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IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 李星辰
Owner 水富金沙江生物科技有限责任公司
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