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Method of culturing finless eel using floating bed net cage for shading vegetable

A technology for cage culture and rice field eel, applied in botany equipment and methods, applications, fish farming, etc., can solve problems such as deep root entanglement, small water peanut leaves, consumption of dissolved oxygen, etc., to achieve reasonable water surface coverage and growth Reasonable speed to avoid overgrowth effect

Inactive Publication Date: 2017-06-13
NANCHANG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, water hyacinth (commonly known as water floating lotus, scientific name water hyacinth) and water peanut (hollow lotus) have been used in domestic and foreign production to play the role of shading, cooling and water purification for the cage culture of rice field eels. Gourds are prone to root rot in winter, which can easily lead to secondary pollution of water quality; in addition, the occurrence of insect pests is serious, and the use of pesticides to kill insects in production will affect the quality and safety of rice field eels; in addition, water hyacinth, as an alien species, has no natural enemies in my country, and it is flooded In some cases, species invasion has been caused, and a large amount of water coverage will consume a large amount of dissolved oxygen in the water, so regular cleaning is required
However, the water peanut leaves are narrow and the shading effect is limited; excessive growth leads to deep entanglement of the root system, which is not conducive to the eel having enough space to breathe and feed in the shallow water layer

Method used

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  • Method of culturing finless eel using floating bed net cage for shading vegetable

Examples

Experimental program
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Embodiment 1

[0017] 1) Pond selection: The pond area is 8-10 mu, the water depth is 1-1.5m, and the bottom of the pond is flat.

[0018] 2) Net cage production: the size of the net cage is 2.0×2.0×1.5m 3 , The mesh specification is 20-30 mesh.

[0019] 3) Water surface cultivation and management technology of water spinach: a floating bed is placed on the water surface of the cage at the beginning of May every year, and the growth cycle of water spinach is consistent with the breeding cycle of rice field eel. The size of the floating bed is 1.9×1.9m 2 Slightly smaller than the net cage, the floating bed is made of PVC pipes (mainly composed of polyvinyl chloride) and NBR anti-collision strips (mainly composed of nitrile rubber), on which holes are punched in an inverted triangle frame, adjacent holes The spacing is 8-10cm, and water spinach seedlings are planted inside. In order to prevent the rice field eels from being disturbed when picking water spinach, a nest is built for rice field...

example example 2

[0031]In the cultivation of rice field eels in net cages, water hyacinth is planted on the water surface of the breeding water body. After the water hyacinth seedlings grow for 10-15 days and the leaves can cover the water surface, the eel species can be transferred into the cages. After regular testing of the physical and chemical indicators of the water quality in the cages, The research results are shown in Table 1.

[0032] In the cultivation of rice field eels in net cages, water peanuts are planted on the water surface of the breeding water body. After the water peanut seedlings grow for 10-15 days and the leaves can cover the water surface, the eel species can be transferred into the cages. After regular testing of the physical and chemical indicators of the water quality in the cages, The research results are shown in Table 1.

[0033] In the cultivation of rice field eels in net cages, water spinach is planted on the water surface of the breeding water body. After the...

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Abstract

The invention provides a method of culturing finless eel using a floating bed net cage for shading vegetables. The method comprises the steps of 1, pond selection; 2, cage fabrication; 3, cultivation and management technology of the floating bed in the net cage; 4, eel species injection; 5, bait feeding and culturing management. The method of culturing finless eel cage has the effects of shading from the sun and screening from the sun, lowering the temperature, and increasing the survival rate of eel and purifying water for eels cultured in net cages.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a method for cultivating rice field eels in floating bed net cages using water spinach as shade vegetables. Background technique [0002] Yellow eel (Monopterus albus), also known as eel and snake fish, belongs to Cypriniformes Loachidae, with tender meat and rich nutritional value, rich in polyunsaturated fatty acids such as docosahexaenoic acid and lecithin. The unique eel element in eel has the effects of clearing heat and detoxifying, cooling blood and relieving pain, dispelling wind and swelling, nourishing blood and nourishing qi, etc., and can reduce and regulate blood sugar. Low fat and high protein are ideal food for diabetic patients. Therefore, rice field eel has extremely High economic value, medicinal value and social value. The annual demand for rice field eels in my country is more than 4 million tons, and the number of rice field eels imported from my country by Japan,...

Claims

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Application Information

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IPC IPC(8): A01G31/00A01K61/10A01K61/13
CPCA01G31/00A01K61/00Y02A40/81Y02P60/60
Inventor 王玉兰侯玉洁徐宝庆邹新建张东萍黄芳桂卫星邹桂花刘昌林蓝岚俞莉
Owner NANCHANG ACADEMY OF AGRI SCI
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