Technique for two-stage controlled ecological fresh water aquiculturing Penaeus vannamei Boone

A technology of desalination and white shrimp, applied in fish farming, climate change adaptation, application, etc., can solve problems such as unfavorable yield, slow growth rate, and low yield

Inactive Publication Date: 2007-08-15
FUJIAN NORMAL UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

Although Penaeus vannamei can grow in fresh water, the growth rate is slow, the yield is low, and the economic benefits of farmers are poor
At the same time, because the suitable water temperature for the culture of Penaeus vannamei is 23-34°C, the optimum growth water temperature is 28-32°C, feeding stops below 19°C, and death occurs below 9°C, and the water temperature above 35°C has a great impact on its metabolism. Therefore, the time suitable for growing with Penaeus vannamei in the whole year is short, which is not conducive to the improvement of yield.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The first stage

[0038] Shrimp seedlings: Xiamen Wutong Seawater Nursery Farm. The body length is 0.5-0.7 cm.

[0039] Selection of intensive breeding ponds: with a total area of ​​6 mu, it is divided into 36 cement ponds with an area of ​​100 square meters. Car-type aerator, every four pools are equipped with a 1.5KW air compressor to inflate the sand head.

[0040] Cultivation of aquaculture water: before seedlings, clean the pond, fill it with fresh water, and disinfect it with 20mg / L bleaching powder for 3 days to drain and rinse. Use the river fresh water filtered through a 40-mesh sieve and underground brine to prepare brackish water with a salinity of 8‰. 50 cm. Every day at 10 o'clock in the morning, turn on the aerator for 1 hour and 3 days, and then sprinkle 100 grams of eel feed powder and 50 grams of photosynthetic bacteria in each pond to cultivate water quality. After 5 days, the seedlings were put down, and the air compressor was turned on to inflate ...

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Abstract

The invention relates to an aquaculture technology, which in detail relates to a two- stage controllable ecological and high effective technology for cultivating South America prawn in fresh water. It is characterized in that it comprises: in the first stage culturing young shrimps in temperature controllable shrimp culture pool for 28- 35 days until the prawn grows to 3- 6 cm; moving prawn to brackish water with low salt concentration for 100 days. The invention is suitable for prawn cultivation in north center, realizes cultivation effect in normal field the same to that in high- level pool with membrane in the bottom; the survival rate is high, fertilizer coefficient is only 0.92, and the cultivation quantity and economical benefit for prawn are increased.

Description

technical field [0001] The invention relates to aquaculture technology, in particular to a technology for efficiently cultivating Penaeus vannamei by adopting two-stage controllable ecological desalination. technical background [0002] Due to the delicious taste, rich nutrition, and strong health effects of aquatic products, it has been found in recent years that it is rich in n-3 unsaturated fatty acids and other active substances that are effective for cardiovascular diseases, and has become more and more popular among people. The nutritional value and unique flavor of aquatic products have been gradually understood, recognized and favored by consumers, which has gradually expanded the market group, especially in recent years, affected by mad cow disease and bird flu in the world, consumers have fear of livestock and poultry products , Turning our attention to aquatic products, the demand for aquatic products has increased significantly, and has been on the rise, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 陈由强林岗张彦定吴钦缘叶冰莹陈民坚张华陈如凯
Owner FUJIAN NORMAL UNIV
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