Ecological cultivation method and ecological cultivation system of common nostoc

A technology for ecological breeding and aquaculture of water bodies, which is applied in the field of cyanobacteria aquaculture, can solve the problems of difficulty in popularizing the outdoor breeding technology of Ge Xianmi, complicated system operation and complicated operation, and achieves the effects of high quality, water saving and low cost.

Active Publication Date: 2014-09-10
CHANGDE YANDI BIOTECH LTD CO +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The method disclosed in the Chinese patent CN101792716B refers to using the culture wastewater of Pueraria kudzu to raise aquatic animals and plants downstream, and then recycle the culture wastewater of aquatic animals and plants to raise Pueraria japonica. Immortal rice and aquatic animals and plants are cultivated in separate ponds. The operation of the system is complex and cumbersome, and this patent does not describe in detail the specific operation method of this cultivation system
Moreover, at present, the cultivation of Ge Xianmi in China all adopts a single-species breeding model. The outdoor breeding technology of Ge Xianmi is difficult to popularize, and its implementation process is difficult.

Method used

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  • Ecological cultivation method and ecological cultivation system of common nostoc
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Experimental program
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Effect test

Embodiment 1

[0052] The construction of embodiment 1 pool cultivation system

[0053] This embodiment involves a total of 3 pools, which are respectively a closed water storage pool, an open culture pool and an open water body activation pool connected in sequence.

[0054] An open cultivation pool is directly built in the sunlight greenhouse, with a length of 12 meters, a width of 6 meters and a height of 2 meters. Or it can be a square or circular open culture pool. In order to facilitate operation, the pool is embedded 1 meter into the ground and 1 meter above the ground. The entire cultivation pool is poured with waterproof concrete, and thick white plastic sheets are laid on the walls and bottom of the pool, and the plastic sheets are glued and fixed with non-toxic glue to ensure that there is no gap between the plastic sheet and the side walls and bottom of the pool. Perforated aeration pipe 3 is laid at the bottom of the rectangular pool, and many perforated aeration pipes are lai...

Embodiment 2

[0056] The construction of embodiment 2 natural waters net cage enclosure

[0057] The cultivation system for cultivating Ge Xianmi in the cage enclosure of the outdoor natural freshwater waters includes a cage enclosure cultivation system and an aeration system.

[0058] Use a fixed cage. Choose a double-layer polyethylene synthetic fiber screen as the net material, and the screen aperture can be between 50-100 mesh. Moso bamboo is used as the supporting pile to support the net cage. First, 4 corner piles are laid, and the piles are laid at a certain interval on each side. The support piles are reinforced with beams. The rope loops on the net cage can be directly hung on the supporting piles at the corresponding positions. Cages can be located in shallow waters with a water depth of more than 2 meters. The shape of the net cage can be cuboid, cube or cylinder, and the material of the bottom of the net cage is the same as that of the side wall, and they are completely conn...

Embodiment 3

[0064] Embodiment 3 Screening of the Provenance of Ge Xianmi Spheres

[0065] Use a 40-mesh sieve to screen Gexianmi spheres with a diameter ≥ 1 mm in the provenance of Pueraria japonica as the provenance of the open culture pool.

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Abstract

The invention provides an ecological cultivation method of common nostoc. Aquatic animals are poly-cultured in aquatic water of common nostoc, wherein the aquatic animals are filter feeding aquatic animals and/or omnivory aquatic animals. The filter feeding aquatic animals are one or more of filter feeding fishes, filter feeding shellfishes, algae-eating shrimps and algae-eating spiral shells. An ecological cultivation system used by the ecological cultivation method comprises a closed water tank, an opened cultivation pool and an opened water activation tank which are sequentially connected or cage enclosure cultivation is carried out in natural water domains. According to the method provided by the invention, the common nostoc and the aquatic animals are poly-cultured in ecological diversity and are self-organized and self-circulated. By poly-culturing the aquatic animals, the utilization ratio of the cultivation space is increased. No artificial light sources are needed to supplement light, the common nostoc is cultured in a widely-open manner outdoors without changing water, and no nutritional components are added into the aquatic water. The nutritional mode of the common nostoc is photoheterotrophic, so that air introduced by an aerating system needs not to be filtered, the blowing volume needs not to be great and no commercial CO2 gas needs to be consumed.

Description

technical field [0001] The invention relates to a cultivation of cyanobacteria, in particular to a low-cost and environment-friendly ecological cultivation method and an ecological cultivation system of Gexianmi. Background technique [0002] Gexianmi is the common name of Nostocsphaeoides Kützing in Nostoc Vauch, which belongs to Cyanophyta, Cyanophyceae, Nostocales, Nostocaceae ), is a precious freshwater nitrogen-fixing cyanobacteria. [0003] The distribution of Gexianmi in the world is extremely rare. Among the rice fields mainly distributed in mountainous areas in my country, Hefeng, Hubei has the highest yield, and it is reported that there is also a small amount of distribution in Africa and other places. Gexianmi has a long history in my country, and it is not only a nutritious traditional delicacy, but also has high medical and health care effects. However, due to inappropriate farming methods and unreasonable harvesting of wild resources of Gexianmi, the wild ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20A01K61/00C12R1/01
CPCY02A40/81
Inventor 安彦君周丰王卫易思富熊斌杨胜辉王远忠陈牧
Owner CHANGDE YANDI BIOTECH LTD CO
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