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Ecological yield-increasing breeding method for white-leg shrimps

A breeding method and technology of white prawns, which are applied in botany equipment and methods, fish farming, horticulture, etc., can solve the problems of water purification ability decline, failure to decompose in time, poor water quality and bottom quality, so as to improve water quality and prevent Escape, increase the effect of silt thickness

Inactive Publication Date: 2017-01-04
刘清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the phosphorus content is deficient, as long as the nitrogen cycle is not hindered, the nitrogen source of the water body will inevitably be excessive, and the algae cannot use so much nitrogen source, and it will inevitably produce ammonia nitrogen, nitrite, etc.; Unbalanced and not suitable for the reproduction and growth of existing algae, the aging of algae is inevitable, the purification ability of the water body will inevitably decrease, the organic matter in the water may not be decomposed in time and the water will appear thick, the water quality is poor and the bottom quality is not good

Method used

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  • Ecological yield-increasing breeding method for white-leg shrimps

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Embodiment 1

[0030] The invention provides a method for cultivating Penaeus vannamei with an ecological increase in production, comprising the steps of:

[0031] 1) Select a circular non-polluting aquaculture water area, the depth of the aquaculture water area is 2-2.5m, drain the water therein;

[0032] 2) Select a piece in the middle of the culture waters as a culture pond for Penaeus vannamei, and the surrounding area is used as a rice stem planting pond. The area ratio of the Penaeus vannamei culture pond to the rice stem planting pond is 3-5:1, and the silt in the culture pond of Penaeus vannamei is completely removed and debris, and collect the cleared silt to prevent the feed, shrimp excrement, biological debris, etc. that were fed during the breeding process from being fermented and decomposed into a variety of harmful substances together with the silt, resulting in a series of chemical reactions that deteriorate the water quality. As a result of frequent occurrence of prawn diseas...

Embodiment 2

[0042] On the basis of Example 1, at least two aerators are set in the culture pond of Penaeus vannamei to increase the dissolved oxygen in the water body and improve the survival rate and output of Penaeus vannamei.

Embodiment 3

[0044] On the basis of embodiment 2, a drainage pipe is provided at the bottom of the breeding water, which can remove the sewage at the bottom of the water in time, and prevent the fermentation of bait and prawn excrement and then destroy the overall water quality.

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Abstract

The invention discloses an ecological yield-increasing breeding method for white-leg shrimps. The method comprises the steps that an aquaculture water area is selected, and water is drained; a bock of the aquaculture water area is selected to serve as a breeding pond for the white-leg shrimps, sludge in the breeding pond is removed out, and the breeding pond is dried in the sun; organic manure containing sludge is prepared through fermentation; quick lime is thrown into the breeding pond for disinfection and soaking; the periphery of the breeding pond for the white-leg shrimps is surrounded by a fence, and cane shoots are planted in a cane shoot planting pond; water is introduced, the pH value of the water is regulated, and fertilization is carried out; a net cage is selected; young shrimps are put in the net cage, and the net cage is moved regularly in the water; at middle and later breeding stages, the white-leg shrimps are put in different net cages, breeding is over, the white-leg shrimps are scooped out, and the cane shoots are dug out. The white-leg shrimps and the cane shoots are ecologically bred together, the cane shoots like fertilizer, redundant nitrogen in the breeding water is absorbed by the cane shoots, it is avoided that ammonia nitrogen, nitrite and the like are generated due to high nitrogen content, and symbiotic and complementary ecological breeding capable of increasing breeding benefits is realized.

Description

technical field [0001] The invention relates to the field of aquaculture. More specifically, the present invention relates to a culture method of Penaeus vannamei with ecologically increased production. Background technique [0002] The meat of Penaeus vannamei is delicious and nutritious. Its meat is soft and easy to digest. It has always been a popular delicacy. The meat rate of Penaeus vannamei can be as high as 67%. It grows fast, has strong disease resistance and a wide temperature range. An excellent desalination cultured species, as such, it has been widely cultured. [0003] During the culture of Penaeus vannamei, with the continuous increase of feeding feed, because the protein content of the feeding feed is about 40%, it is easy to cause high nitrogen content in the water body and lack of phosphorus, potassium and other trace elements. When the phosphorus content is deficient, as long as the nitrogen cycle is not hindered, the nitrogen source of the water body wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01G1/00
Inventor 刘清
Owner 刘清