Preparation method of composite green algae and method for cultivating river crabs by using same

A compound type, green algae technology, applied in the direction of microorganism-based methods, biochemical equipment and methods, applications, etc., can solve the problems of oxygen consumption in ponds, difficult control, high market prices, etc., to improve the comprehensive benefits of breeding and increase production and quality, and the effect of reducing the cost of breeding

Pending Publication Date: 2019-05-31
常州市金坛区皓立农业科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic fertilizers have high temperature requirements, but if the temperature is too high, it will easily overwater and fertilize, and consume a lot of oxygen in the pond, which is difficult to control
In recent years, many farmers have used chlorella to fertilize water quality, but the finished product purchased on the market is dark green in color, sticky, and has no sedimentation. The naked eye cannot distinguish whether it is good or bad, and the market price is expensive.
And a single chlorella has a single function, and the effect of fertilizer and water is far inferior to that of compound green algae

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of compound type green algae, comprises the steps:

[0025] Step 1: Aerate 100kg of tap water for more than 24 hours to fully remove chlorine;

[0026] Step 2: Prepare a white transparent plastic bucket with a capacity of 250kg, and spray the inner wall of the bucket with 75% medical alcohol to remove bacteria;

[0027] Step 3: Disinfect the air pump and inflatable head with 75% medical alcohol;

[0028] Step 4: After the alcohol in the barrel wall has evaporated, add 100kg of tap water that has been aerated and dechlorinated, pour 5kg of mixed concentrated algae seed solution containing Chlorella, Scenedesmus, Haematococcus, and oocysts, and then add dry medium powder 0.2kg, the medium dry powder adopts the medium dry powder suitable for algae;

[0029] Step 5: Put the barrel in a sunny place outside, put it into a sterilized air pump with an inflatable head installed, fully aerate, open the mouth of the barrel completely, and adapt to the outdoo...

Embodiment 2

[0035] A kind of method that uses described compound type green algae to carry out river crab culture, comprises the steps:

[0036] When river crab culture is in the early 3-6 months, use the compound green algae of the present invention, according to the water depth of 1.2m per mu of crab pond, the dosage is 2kg-5kg, and the whole pond is splashed. 1 time every 15 days;

[0037] When river crab culture is in the middle and late period of July to September, use the compound green algae of the present invention, according to the water depth of 1.2m per mu of crab pond, the dosage is 4kg-10kg. The frequency is 1 every 7 days.

[0038] In the early stage of breeding, the compound green algae of the present invention is used, supplemented with amino acid fertilizer water paste and glucose, which not only provides nutrition for the rapid reproduction of zooplankton and cladocera animals, but also builds a stable plankton community and improves water body fertility. Aquatic produ...

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PUM

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Abstract

The invention discloses a preparation method of composite green algae and a method for cultivating river crabs by using the same, wherein the preparation method comprises the following steps of: aerating 100 parts by weight of tap water for more than 24 hours; spraying and sterilizing the inner wall of a container with medical alcohol to remove foreign bacteria; adding 100 parts by weight of tap water subjected to aeration and chlorine removalafter medical alcohol on the inner wall of the container is volatilized completely, pouring 5 parts by weight of mixed concentrated algae seed liquid containing chlorella, physalis, haematococcus and oocystis, and then adding 0.2 part by weight of culture medium dry powder; placing the container in an outdoor sunny place, placing a sterilized aeration-head-filled air pump for fully aeration;obtaining first generation of algal fluid when the overall water body is dark green after 4-5 days with bubbles hanging on the inner wall of the container; Composite green algaecontains high astaxanthin content of chlorella, which is beneficial to improving the yield and quality of freshwater shrimps in a freshwater shrimp pond for river crab interculture,and the comprehensive benefit of culture is greatly improved.

Description

technical field [0001] The invention relates to the technical field of preparation of composite green algae, in particular to a preparation method of composite green algae and a method for using the composite green algae for river crab cultivation. Background technique [0002] River crab industry is the pillar industry of agriculture in Jiangsu Province. The benefits of river crab farming are not only related to the increase of fishery income and the prosperity of farmers. However, the level of river crab breeding technology in the province is uneven. A small number of farmers have an average output of 200kg of river crab per mu, while many farmers' output barely reaches 80kg. This is mainly related to whether we can keep the grass, adjust the water and improve the bottom in the process of crab breeding, so as to provide a good environment for the growth of river crabs. Whether the vitality of aquatic plants is vigorous or not, the quality of pond water quality and bottom ...

Claims

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Application Information

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IPC IPC(8): C12N1/12A01K61/59C12R1/89
CPCY02A40/81
Inventor 刘伟杰冯爱忠张金彪王若玉
Owner 常州市金坛区皓立农业科技有限公司
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