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Seedling collecting facility and method of industrialized rapana venosa seedling culture

A technology of pulse red snail and industrialization, which is applied in the field of seedling collection facilities of pulse red snail factory nursery, can solve the problems of water quality deterioration, larvae death, and seedling failure, and achieves the improvement of the survival rate, the improvement of the survival rate, and the full use of space. Effect

Active Publication Date: 2011-03-23
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Using bivalve mollusk meat paste as animal bait can easily cause water quality to deteriorate, resulting in mass death of larvae and failure of seedling cultivation

Method used

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  • Seedling collecting facility and method of industrialized rapana venosa seedling culture
  • Seedling collecting facility and method of industrialized rapana venosa seedling culture
  • Seedling collecting facility and method of industrialized rapana venosa seedling culture

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Embodiment Construction

[0027] The method for picking seedlings of red snail industrialized seedling cultivation of the present invention, concrete process is as follows:

[0028] The seedling picking facilities are made of rough plastic corrugated boards and brackets that fix the corrugated boards. Before the seedling picking facilities are released, oyster spat are attached to the plastic corrugated boards as animal bait during the feeding habits conversion and metamorphosis of the snail larvae. , the density of oyster spat on the plastic corrugated board is 5-20 / cm 2 , The size of oyster spat is 0.5-2.0mm in shell length. When more than 50% of the red snail larvae develop to the late stage of the third helix to the early stage of the fourth helix, put the seedling collection facilities in a multi-plane and three-dimensional layered manner with plastic corrugated plates in the seedling pond, so as to make full use of the water body and make the red snail The larvae attach to the plastic corrugated...

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Abstract

The invention relates to industrialized seedling culture production of aquiculture, in particular a seedling collecting facility and method of industrialized rapana venosa seedling culture. The seedling collecting facility comprises plastic corrugated sheets with rough surfaces and a bracket fixing the corrugated sheets. The plastic corrugated sheets are fixed in clamping troughs on the bracket in parallel, and ropes in parallel to clamping trough connecting rods are enlaced at the side face opposite to the clamping trough connecting rods. In the method, juvenile oyster mollusks, used as animal baits in the eating pattern transformation and metamorphosis process of rapana venosa larvae, are adhered to the plastic corrugated sheets firstly before the seedling collecting facility is put into use; when more than 50% of the rapana venosa larvae grows to the later stage of three spiral whorls to the initial stage of four spiral whorls, the seedling collecting facility is put into use as the plastic corrugated sheets are in multi-plane three-dimensional layered mode in a seedling culture pond, and the rapana venosa larvae are adhered to the plastic corrugated sheets adhered with the juvenile oyster mollusks to complete the eating pattern transformation and metamorphosis process and carry out juvenile rapana venosa intermediate culture. By adopting the invention, the eating pattern transformation and metamorphosis process ofthe rapana venosa larvae can be completed successfully in industrialized seedling culture.

Description

technical field [0001] The invention relates to industrialized seedling production of aquaculture, in particular to a seedling picking facility and method for industrialized seedling raising of red snails. Background technique [0002] Rapana venosa, commonly known as "tile snail" and "conch snail", belongs to the phylum Molluscs, Gastropoda, Murexidae, and the genus Rupana venosa. The adult shell height can reach 11-12cm. It is distributed in the Bohai Sea and the Yellow Sea of ​​my country. Its feet are particularly fat, delicious and nutritious, and it is very popular among people with high economic value. In recent years, with the decline of offshore resources and the popularity of this variety in domestic and foreign markets, its economic value has continued to increase. The current live price is 20-40 yuan / kg. [0003] At present, there is a great market demand for red snails in my country's Bohai Sea and the Yellow Sea coast. Since the 1990s, some scientific research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K1/18A23K50/80
CPCY02A40/81
Inventor 张涛潘洋杨红生邱天龙张立斌班绍君周毅刘鹰
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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