A method for culturing prawns in deep-water cages against wind and waves

A technology of deep water net cages and breeding methods, applied in fish farming, application, climate change adaptation, etc., can solve problems such as polluted environment, frequent occurrence of diseases, and serious limitation of shrimp farming resources, so as to achieve less disease occurrence and better meat quality of prawns , The effect of improving the quality of farmed products

Active Publication Date: 2018-03-27
深圳深水网箱科技有限公司 +1
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  • Summary
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for cultivating prawns in deep-water net cages against wind and waves to overcome the current situation of severe limitation of prawn cultivation resources, frequent occurrence of diseases and environmental pollution in the prior art

Method used

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Embodiment 1

[0015] From May 2015 to October 2015, the method of the present invention was used to carry out the prawn culture test in Dapeng Bay, Shenzhen City. One HDPE C43 type anti-wind and wave deep-water net cage was selected, with a circumference of 43 m and a depth of 6 m. The netting is polyethylene mesh.

[0016] Before putting the prawns into the net cages, the prawns with a body length of 0.9-1 cm were placed in the outdoor culture ponds, and put in according to the conventional culture density, and the corresponding prawns were fed at 7:00, 12:00 and 17:00 every day. Compound feed.

[0017] After 20 days of breeding, the average body length of the prawns was 4 cm, and they were transferred to HDPE C43 anti-wind and wave deep-water cages with a net aperture of 0.8 cm for breeding, and the breeding density was 300 fish / m 2 .

[0018] After 30 days of breeding, the average body length of the prawns is 8 cm, and the net cage with a mesh aperture of 2 cm is replaced, and the cult...

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Abstract

The invention discloses a wind and wave-resistant offshore net-cage culturing method of prawns. The method comprises the following steps that 1, intermediate culturing is conducted on young prawns with the body length ranging from 0.9 cm to 1 cm in an outdoor aquaculture pond; 2, when the prawns grow to 4 cm, the prawns are transferred to an HDPE C43 type wind and wave-resistant offshore net cage with the net mesh diameter of 0.8 cm to be cultured; 3, when the prawns grow to 8 cm, the prawns are transferred to an HDPE C43 type wind and wave-resistant offshore net cage with the net mesh diameter of 2 cm to be cultured till the prawns meet commercial specifications. According to the wind and wave-resistant offshore net-cage culturing method of the prawns, sea area resources are fully utilized, water exchange is sufficient, high-density intensive culture is facilitated, oxygen aeration is not needed, and energy is saved; in addition, diseases during culturing are few, the current situation that the death rate of prawn pond culture is high at present can be avoided, the quality of cultured products is improved, the meat quality is better, and the purposes of healthy culture and output of green aquatic products can be achieved.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a method for cultivating prawns in a storm-resistant deep-water cage. Background technique [0002] Shrimp farming is an important economic industry in my country's mariculture, which has made important contributions to promoting economic growth and increasing fishermen's income; however, traditional pond farming is still the mainstay of shrimp farming in my country, largely relying on expanding the scale of farming and improving the degree of intensive farming. Obtain high yield, but its limitations and negative effects are increasingly prominent, mainly in: (1) land, water, energy and human resources are severely limited; (2) the quality of breeding water is declining, and diseases occur frequently; (3) frequent water changes It is easy to cause environmental pollution and resource damage, and aggravate disease outbreaks; therefore, exploring new farming models and expanding developmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/59
CPCY02A40/81
Inventor 段亚飞冯会明张家松林黑着黄忠虞为杨育凯
Owner 深圳深水网箱科技有限公司
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