Culturing method for chlorophyta scenedesmus phytoplankton

A technology for phytoplankton and a cultivation method, which is applied in the field of phytoplankton cultivation of the Chlorophyta phytoplankton, can solve the problems of farmers, adverse effects of new energy development and utilization, inability to cultivate on a large scale, low purity of phytoplankton, etc. The effect of short cycle, high culture density and purity, and easy availability of raw materials

Inactive Publication Date: 2015-02-18
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the cultivation method of the phytoplankton of the genus Scenedesmus in the prior art, zooplankton is prone to appear, and the zooplankton eats part of the phytoplankton, resulting in low purity and low density of the cultivated phytoplankton, which is not conducive to subsequent utilizati

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  • Culturing method for chlorophyta scenedesmus phytoplankton
  • Culturing method for chlorophyta scenedesmus phytoplankton

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Take an open glass container with a height of 1m, wrap the surrounding and bottom with aluminum foil for shading, and do not need shading at the opening. Place tap water in the open glass container. Mix the commercially available crude protein 30% freshwater fish compound feed with air-dried and crushed pond bottom mud powder with a particle size of 50-200 mesh in a weight ratio of 2:1, and wrap it with a 120-mesh nylon filter to form a feed Add the bag to an open glass container, and after securing it with a water-insoluble weight (such as a glass bottle cap), sink it to the bottom of the water together. The feeding ratio of tap water and freshwater fish compound feed and pond bottom mud powder is 1L:2g:1g.

[0023] Move the open glass container with the feed package into the glass greenhouse for decay. The temperature of the glass greenhouse is 20-35°C. After 2 weeks of decay, when the total nitrogen content of the water body reaches 22mg / L, remove the feed package f...

Embodiment 2

[0026] Take an open glass container with a height of 1m, wrap the surrounding and bottom with aluminum foil for shading, and do not need shading at the opening. Place tap water in the open glass container. Mix the commercially available crude protein in 30% freshwater fish compound feed with air-dried and crushed pond bottom mud powder with a particle size of 50-200 mesh according to the weight ratio of 1.5:1, and wrap it with a 120-mesh nylon filter to form the feed Add the bag to an open glass container, and after securing it with a water-insoluble weight (such as a glass bottle cap), sink it to the bottom of the water together. The feeding ratio of tap water and freshwater fish compound feed and pond bottom mud powder is 1.5L:1.5g:1g.

[0027] Move the open glass container with the feed package into the glass greenhouse for decay. The temperature of the glass greenhouse is 20-32°C. After 2 weeks of decay, when the total nitrogen content of the water body reaches 16mg / L, re...

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Abstract

The invention relates to a culturing method for phytoplankton, in particular to a culturing method for chlorophyta scenedesmus phytoplankton. The method comprises the following steps of performing shading treatment on the periphery and bottom of an open container by virtue of a shade, injecting water into the container, wrapping freshwater fish compound feeds and dry clay powder with a nylon filter screen to form a feed bag, and sinking the feed bag to the bottom of the container, wherein the proportion of water, the freshwater fish compound feeds to the clay powder is (0.5-4L):(1-4g):1g; rotting the feed bag under an airtight condition of 18 to 35 DEG C, and removing the feed bag when the total nitrogen content of a water body reaches 15 to 25mg/L; removing the shade from the open container, performing aeration treatment on the water body for 8 to 20 days to obtain high-density and high-purity chlorophyta scenedesmus phytoplankton. The culturing method provided by the invention is simple, convenient to implement and low in culturing cost, the raw materials are readily available, and can be continuously used for many times, and great economic benefits are created.

Description

technical field [0001] The invention relates to a method for cultivating phytoplankton, in particular to a method for cultivating phytoplankton of the genus Scenedesmus. Background technique [0002] Rotifers, Cladocerans and other zooplankton, as high-quality bait for fish and shrimp larvae, play an important role in the seed cultivation of aquaculture industry, and one of the important feeding objects of rotifers, Cladocerans and other zooplankton is green The phytoplankton of the genus Scenedesmus, so the high-density and high-purity culture of the phytoplankton of the genus Scenedesmus is conducive to providing high-quality food for zooplankton. At the same time, the phytoplankton of the genus Scenedesmus is also used to treat domestic or aquaculture sewage, thereby repairing water bodies, and can also be used for biodiesel production, etc., with multiple functions. [0003] In the cultivation method of the phytoplankton of the genus Scenedesmus in the prior art, zoopla...

Claims

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Application Information

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IPC IPC(8): C12N1/12A23K1/16C12R1/89
CPCC12N1/12
Inventor 王小冬吴宗凡刘兴国顾兆俊程果锋车轩时旭徐皓陈军
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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