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Method for cage culture of bluefin tuna

A technology of bluefin tuna and net cage culture, which is applied in fish farming, application, climate change adaptation, etc., can solve problems such as reasonable breeding density, lack of scientific basis for reasonable feeding, high breeding density, and inhibition of fish growth, etc., to achieve Good water filtration, less washing times, saving investment cost

Active Publication Date: 2016-04-20
SHENZHEN TAIFENG EAST MARINE BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the current artificial breeding of bluefin tuna is still immature, and there is no corresponding scientific basis for its reasonable breeding density and reasonable feeding. Excessive breeding density and excessive feeding will cause water pollution, while too little feeding will cause water pollution Inhibits the growth of the fish itself

Method used

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  • Method for cage culture of bluefin tuna

Examples

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Effect test

Embodiment 1

[0032] A kind of net cage culture method of bluefin tuna of the present invention comprises the following steps:

[0033] (1) Selection of aquaculture sea area: choose an area with smooth tide, the water depth is about 15m when the tide is low, and the water depth is about 45m when the tide is high. The flow velocity is 0.2m / s;

[0034] (2) Setting of net cages and artificial fishing woods: put in artificial fishing woods, which are built of stones, simulating pits and rock crevices, and are used to attract herring, sardines, squid or crustaceans to inhabit. The natural bait of fin tuna; the floating platform type frame is set, the main body of the floating platform type frame is made of steel, the shape is octagonal, and the diameter of its circumscribed circle is 50m, and 8 net cages are hung around the floating platform type frame, The net of the net cage is an open box sewn with metal mesh (made of titanium wire, stainless steel or alloy steel). The net cage is 10m long, ...

Embodiment 2

[0038] A kind of net cage culture method of bluefin tuna of the present invention comprises the following steps:

[0039] (1) Selection of aquaculture sea area: choose an area with smooth tide, the water depth is 35m when the tide is low, and the water depth is 50m when the tide is high. / s;

[0040] (2) Setting of net cages and artificial fishing woods: put in artificial fishing woods, which are built of stones, simulating pits and rock crevices, and are used to attract herring, sardines, squid or crustaceans to inhabit. The natural bait of fin tuna; the floating platform frame is set, the main body of the floating platform frame is made of steel, the shape is octagonal, the diameter of its circumscribed circle is 50m, and 14 net cages are hung around the floating platform frame, The netting of the net cage is an open box sewn with metal mesh (made of titanium wire, stainless steel or alloy steel). The net cage is 18m long, 18m wide, and 20m high. The distance between the ne...

Embodiment 3

[0044] A kind of net cage culture method of bluefin tuna of the present invention comprises the following steps:

[0045] (1) Selection of breeding sea area: choose an area with smooth tide, the water depth is 20m when the tide is low, and the water depth is 35m when the tide is high. / s;

[0046] (2) Setting of net cages and artificial fishing woods: put in artificial fishing woods, which are built of stones, simulating pits and rock crevices, and are used to attract herring, sardines, squid or crustaceans to inhabit. The natural bait of fin tuna; the floating platform frame is set, the main body of the floating platform frame is made of steel, the shape is octagonal, the diameter of its circumscribed circle is 50m, and 10 net cages are hung around the floating platform frame, The net of the net cage is an open box sewn with metal mesh (made of titanium wire, stainless steel or alloy steel). The net cage is 15m long, 15m wide, and 15m high. The distance between the net cage ...

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Abstract

The invention discloses a method for cage culture of bluefin tuna. The method for cage culture is low in investment, and the bluefin tuna obtained by culture is high in oil content and economic value. The method comprises the following steps: (1) selection of a mariculture area; (2) arrangement of cages and artificial fish reefs, to be specific, putting the artificial fish reefs, arranging a floating platform type frame, and hanging 8 to 14 cages around the floating platform type frame; (3) putting of fingerlings, to be specific, putting fingerlings of the bluefin tuna at a stocking density of 0.2 to 0.8 fingerling / m<3>; (4) feeding of a feed, to be specific, carrying out periodical starvation and then feeding, to be specific, carrying out starvation for 2 days, and then refeeding for 2 days at 2 to 5 pm, wherein a mixed feed is used in the feeding process.

Description

technical field [0001] The invention relates to a breeding method, in particular to a method for breeding bluefin tuna in a cage. The invention belongs to the technical field of aquatic animal breeding. Background technique [0002] Bluefin tuna is the largest species of tuna, with a body length of generally 1 to 3 meters, and the larger ones can be as long as more than 3 meters, with an average weight of 200 to 400 kilograms. Bluefin tuna is the slowest growing type of tuna, with a lifespan of 20 years or more. Bluefin tuna in the high-fat period has the best taste and the highest price, and is mainly suitable for high-end sashimi. However, because of its unique commercial value, bluefin tuna is being overfished around the world. The problem of overfishing is serious, and it is difficult to survive only by natural fishing. Whether it is from the demand of delicacy or the continuation of the species, there is an urgent need for a reliable bluefin tuna farming method. [0...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCA01K61/00Y02A40/81
Inventor 黄群好
Owner SHENZHEN TAIFENG EAST MARINE BIOLOGICAL TECH CO LTD
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