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Culture method for rotation of prawns in northern greenhouse

A breeding method and technology of prawns, applied in botany equipment and methods, fish farming, horticulture, etc., can solve the problems affecting the survival rate and growth rate of Penaeus vannamei and the inability to effectively use greenhouses

Pending Publication Date: 2021-06-11
渤海水产股份有限公司 +2
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Penaeus vannamei and Penaeus monodon are favorite shrimps of Chinese citizens. They have a very large domestic breeding area, but these two kinds of shrimps are warm-water shrimps. In the northern regions, there is no such thing in early spring and early winter because the water temperature is too low. The method is to breed these two kinds of shrimps, and it is necessary to build simple greenhouses to prolong the cultivation time of shrimps; at present, in the northern regions, especially in the large water surface salt fields in Shandong, Hebei, and Tianjin, the cultivation of Penaeus vannamei in greenhouses has increased the standard thick link, and the cultivation time will be shortened. However, due to the high water temperature in the greenhouse from July to August, which can reach about 35°C, which affects the survival rate and growth rate of Penaeus vannamei, the greenhouse cannot be effectively used

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0022] According to the above method in Binzhou, Shandong, the implementation of one crop of Penaeus vannamei in the pond greenhouse and one crop of cultured Penaeus vannamei and one crop of Penaeus vannamei have achieved good returns.

[0023] The first crop of Penaeus vannamei in the greenhouse will be from April 3rd to May 1st. The seedling density is 2 million / mu, and the size of the seedlings is 600 / catties. 15 days on the market, production increased by 20%

[0024] The second crop of Greenhouse and the second crop of African giant prawns are cultured from April 25th to August 15th. The second crop is 900 catties / mu, the size is 20 / catties, and the average price is 32 yuan / catties. The profit exceeds 15,000 Yuan / mu

[0025] The third batch of Penaeus vannamei farming, the breeding time period is from August 10th to November 15th, the second crop is 1100 catties / mu, the size is 25 / catties, the average price is 22 yuan / catties, and the profit exceeds 10,000 yuan / mu .

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PUM

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Abstract

The invention relates to a culture method for rotation of prawns in a northern greenhouse. The culture method comprises the following steps of pond greenhouse construction, cleaning and disinfection, small shed culture, three-time fry putting time, feeding, water quality management, combined oxygenation, disease control and three-time fishing. A primary evaporation pond of a seawater salt pan is transformed into a single culture pond, the survival rate of prawns is improved increased, and thus the yield per mu and the total yield are greatly improved.

Description

technical field [0001] The invention relates to aquaculture, in particular to a method for three-crop rotation cultivation of Penaeus vannamei and Penaeus monodon in three crops. Background technique [0002] Penaeus vannamei (Penaeus vannamei), scientific name Litopenaeus vannamei, is a wide-temperature and wide-halt tropical shrimp, which can grow under the condition of 18-32°C. Penaeus vannamei has the advantages of large individual, fast growth, low nutritional requirements, and strong disease resistance. It has a strong adaptability to changes in water environment factors, has low requirements for feed protein content, has a meat yield of over 65%, and survives out of water. It has the advantages of long time and other advantages. It is an excellent variety for intensive high-yield farming. It is currently the shrimp species with the highest single output among the three major cultured prawns in the world. [0003] African monodon is also called King Kong monodon, mono...

Claims

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Application Information

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IPC IPC(8): A01K61/59A01K63/00A01K61/13A01K61/10A01G22/00
CPCA01K61/59A01K63/003A01K61/13A01K61/10A01G22/00Y02A40/81
Inventor 陈锚马士玉王荣星
Owner 渤海水产股份有限公司
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