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Wind and wave-resistant offshore net-cage culturing method of prawns

A deep-water cage and culture method technology, applied in fish farming, application, climate change adaptation and other directions, can solve problems such as pollution of the environment, severe limitation of shrimp farming resources, frequent diseases, etc., to achieve less disease occurrence and improve farming products Quality, prawn meat quality is good

Active Publication Date: 2016-04-06
深圳深水网箱科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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Examples

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Effect test

Embodiment 1

[0015] From May, 2015 to October, 2015, adopt the method described in the present invention to carry out prawn breeding test in Dapeng Bay, Shenzhen City, select 1 HDPEC43 type anti-wind and wave deep-water net cage, circumference 43m, depth 6m, net clothing used is Polyethylene mesh.

[0016] Before the prawns are put into the net cage, the prawns with a body length of 0.9 ~ 1cm are placed in the outdoor culture pond to make a standard, and they are put in according to the conventional culture density, and the corresponding prawns are fed at 7:00, 12:00 and 17:00 every day. feed.

[0017] After 20 days of breeding, the average body length of prawns is 4cm, and they are transferred to HDPEC43 anti-wind and wave deep-water net cages with a net aperture of 0.8cm for breeding, and the breeding density is 300 fish / m 2 .

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

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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 Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 冯会明
Owner 深圳深水网箱科技有限公司
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