A method for cultivating cocoonoid algae to regulate water quality in prawn elevated pond culture

A technique for regulating the water quality of the cocoon-shaped algae, which is applied in the fields of botanical equipment and methods, cultivation, fish farming, etc., to achieve the effects of reducing the cost of farming, simple and convenient operation, and significant economic benefits.

Active Publication Date: 2016-09-28
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Effect test

Embodiment 1

[0020] Adopt the method for regulating water quality in the prawn high-level pond culture of the present invention by utilizing Pterococoons, cultivate Pterococoons to regulate water quality according to the following steps:

[0021] (1) Cement pond cultivation of Pteropycodonoid algae: The area of ​​the cement pond for cultivating Pteropterosa cocoonoid algae is 20m 2 , the pool is 1.2m deep. After the cement pool is cleaned, add 1.0m of filtered seawater, then disinfect the pool water with 200g of strong chlorine, and then neutralize it with 80g of sodium thiosulfate after 24 hours and continue to aerate for 8 hours. After all the residual chlorine in the water disappears, add NaNO 3 640g, NaH 2 PO 4 100g, Na 2 SiO 3 240g and FeCl 3 9g, 240mL of boiled fish sauce. Then inoculate the cement pond with the algae grown indoors.

[0022] (2) Cultivation of cocoon-shaped algae high level pool: the area of ​​high level pool is 2000m 2 , the depth of the pond is 1.85m, and ...

Embodiment 2

[0025] Adopt the method for regulating water quality in the prawn high-level pond culture of the present invention by utilizing Pterococoons, cultivate Pterococoons to regulate water quality according to the following steps:

[0026] (1) Cement pond cultivation of Pteropycodonoid algae: The area of ​​the cement pond for cultivating Pteropterosa cocoonoid algae is 20m 2 , the pool is 1.2m deep. After the cement pool is cleaned, add 0.8m of filtered seawater, then disinfect the pool water with 160g of strong chlorine, and then neutralize it with 64g of sodium thiosulfate after 24 hours and continue to aerate for 7.5 hours. After all the residual chlorine in the water disappears, add NaNO 3 512g, NaH 2 PO 4 80g, Na 2 SiO 3 192g and FeCl 3 7.2g, 192mL of boiled fish sauce. Then inoculate the cement pond with the algae grown indoors.

[0027] (2) Cultivation of high-level ponds for cocoon pterygium: the area of ​​high-level ponds is 2350m 2 , the depth of the pond is 2m, and...

Embodiment 3

[0030] Adopt the method for regulating water quality in the prawn high-level pond culture of the present invention by utilizing Pterococoons, cultivate Pterococoons to regulate water quality according to the following steps:

[0031] (1) Cement pond cultivation of Pteropycodonoid algae: The area of ​​the cement pond for cultivating Pteropterosa cocoonoid algae is 20m 2 , the pool is 1.2m deep. After the cement pool is cleaned, add 0.85m of filtered seawater, then disinfect the pool water with 170g of strong chlorine, and then neutralize it with 68g of sodium thiosulfate after 24 hours and continue to aerate for 7 hours. After all the residual chlorine in the water disappears, add NaNO 3 544g, NaH 2 PO 4 85g, Na 2 SiO 3 204g and FeCl 3 8g, 204mL of boiled fish sauce. Then inoculate the cement pond with the algae grown indoors.

[0032] (2) Cultivation of cocoon algae high level pool: area of ​​high level pool is 3400m 2 , the depth of the pond is 2m, and a waterwheel t...

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Abstract

The invention relates to a method for cultivating cocoon-shaped algae to regulate water quality in high-level pond culture of prawns, which belongs to the technical field of aquaculture; according to the characteristics that the cocoon-shaped algae can grow for a long time and stabilize the water quality of the culture environment, before feeding shrimp seedlings, the The high-level tank first directional cultures the cocoon, the specific steps are to first culture the cocoon in the laboratory, then expand it to the indoor cement tank for cultivation, and finally inoculate it into the high-level tank for cultivation; the high-level tank cultures the cocoon 7 After ~8 days, it becomes the dominant species, and the shrimp seedlings can be released; the operation of the present invention is simple and convenient, and the technology is easy to master, which avoids the practice of maintaining the ecological balance of the cultured water body by using large rows and large irrigations in the traditional high-level pond culture of prawns; the water in the culture pond is yellowish brown, The transparency is moderate, the ecosystem can remain stable for a long time, the dosage of medicines and diseases are significantly reduced, the success rate of cultivation is improved, the cost of cultivation is reduced, and the economic benefits are remarkable. At the same time, the body color of the harvested prawns is good.

Description

technical field [0001] The present invention relates to a method for adjusting the culture environment by cultivating microalgae with wide salinity, stable population and strong adaptability in the high-level pond culture of prawns, and specifically relates to a method for cultivating cocoon-shaped algae in the high-level pond culture of prawns to regulate water quality , belongs to the field of aquaculture technology. Background technique [0002] Intensive culture of prawns is a culture mode that uses modern engineering, chemistry, biology, electromechanical, automation and the use of environmentally friendly feed and other latest technological means to carry out high-density culture of prawns under artificial control conditions. In recent years, in order to pursue high yield in the process of shrimp farming, a large amount of artificial feed has been put in while increasing the breeding density, causing a large amount of residual bait, shrimp feces and dead biological deb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G33/00A01K61/00
CPCY02A40/80Y02A40/81
Inventor 黄翔鹄李长玲罗杰
Owner GUANGDONG OCEAN UNIVERSITY
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