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Nutrient salt for promoting rapid high-density growth of sea-chain algae and culture method

A nutrient salt and sea algae technology, applied in microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the conditions that are not suitable for sea algae cultivation in open ponds, complex nutrient salt composition, and complex cultivation methods, etc. problems, to achieve the effect of promoting rapid high-density growth, reducing culture costs, and promoting photosynthesis

Pending Publication Date: 2021-03-09
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the nutrient composition used for the cultivation of thalassira is relatively complex, the cost is high, and the cultivation method in the laboratory is complicated, which is not suitable for the conditions of open pond cultivation of thalassira

Method used

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  • Nutrient salt for promoting rapid high-density growth of sea-chain algae and culture method

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Effect test

Embodiment 1

[0016] A kind of nutrient salt that promotes the rapid and high-density growth of thalassira, the nutrient salt includes the following components in grams per ton of seawater: iron citrate 1.5g / ton, sodium silicate 20g / ton , Potassium dihydrogen phosphate 2g / ton, urea 40g / ton and disodium edetate 20g / ton.

[0017] The method for cultivating Thalassiosira using the above-mentioned nutrient salts that promote the rapid and high-density growth of Thassistras comprises the following steps:

[0018] S1. The seawater is passed through the sedimentation tank to precipitate debris, and the sand filter is filtered. After entering the reservoir, 2g of bleaching powder is added to each ton of seawater to sterilize the original organisms. After aeration for 24 hours, it is ready for use;

[0019] S2, pump the seawater in the reservoir into the culture tank, add 0.8g sodium thiosulfate per ton of seawater to remove chlorine, stir and dissolve sodium thiosulfate with an appropriate amount o...

Embodiment 2

[0023] A kind of nutrient salt that promotes the rapid and high-density growth of Thalassiosira, the nutrient salt includes the following components in g per ton of seawater: 2 g / ton of iron citrate, 30 g / ton of sodium silicate, Potassium dihydrogen phosphate 3g / ton, urea 50g / ton and disodium edetate 30g / ton.

[0024] The method for cultivating Thalassiosira using the above-mentioned nutrient salts that promote the rapid and high-density growth of Thassistras comprises the following steps:

[0025] S1. The seawater is passed through the sedimentation tank to precipitate debris, and the sand filter is filtered, and then after entering the reservoir, 5g of bleaching powder is added to each ton of seawater to sterilize the original organisms, and after aeration for 48h, it is ready for use;

[0026] S2, pump the seawater in the reservoir into the culture tank, add 1.5g of sodium thiosulfate per ton of seawater to remove chlorine, stir and dissolve sodium thiosulfate with an appro...

Embodiment 3

[0030] A kind of nutrient salt that promotes the rapid and high-density growth of thalassira, the nutrient salt includes the following components in grams per ton of seawater: iron citrate 1.8g / ton, sodium silicate 25g / ton , Potassium dihydrogen phosphate 2.5g / ton, urea 45g / ton and disodium edetate 25g / ton.

[0031] The method for cultivating Thalassiosira using the above-mentioned nutrient salts that promote the rapid and high-density growth of Thassistras comprises the following steps:

[0032] S1. The seawater is passed through the sedimentation tank to precipitate debris, and the sand filter is filtered, and then after entering the reservoir, 3.5g of bleaching powder is added to each ton of seawater to sterilize the original organisms, and after aeration for 36h, it is ready for use;

[0033] S2, pump the seawater in the reservoir into the culture tank, add 1.2g of sodium thiosulfate per ton of seawater to remove chlorine, stir and dissolve sodium thiosulfate with an appro...

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Abstract

The invention discloses nutrient salt for promoting rapid high-density growth of sea-chain algae and a culture method, and relates to the technical field of aquaculture. The nutrient salt is preparedfrom the following components: ferric citrate, sodium silicate, monopotassium phosphate, urea and ethylene diamine tetraacetic acid. According to the nutrient salt disclosed by the invention, the ureais added as one part of the nutrient salt, so that the dosage of other components in the nutrient salt can be reduced; the urea is lower in cost, so that the overall cost of the nutrient salt is reduced, and the culture cost of the sea-chain algae is reduced; and meanwhile, the rapid high-density growth of the sea-chain algae is promoted through vitamin C and carbon dioxide in air.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a nutrient salt and a cultivation method for promoting rapid and high-density growth of thalassira. Background technique [0002] Thalassiossirasp. belongs to Bacillariophyta, Centrales, Discoideae, Thalassiosoraceae, Thalassiossira, and more The colloidal filaments are connected to form a chain group (4-12 cells) at the edge of the shell surface. The length of a single cell through the shell axis is 20-40 microns, and the diameter is between 5-15 microns. Because of its high nutritional value, strong adaptability and easy cultivation, it has become an excellent open bait for seawater crustacean seedlings. At present, the nutrient composition used for the cultivation of thalassira is relatively complex, the cost is high, and the cultivation method in the laboratory is complicated, which is not suitable for the conditions of open pond cultivation of thalassira. Contents of ...

Claims

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Application Information

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IPC IPC(8): C12N1/12C12R1/89
CPCC12N1/12
Inventor 郭国才唐江毅胡远威董寒旭
Owner FOSHAN UNIVERSITY
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