Method for improving quality of freshwater fish by using seawater to adjust salinity of circulation water culture system

A technology for recirculating aquaculture and freshwater fish, applied in the field of freshwater fish aquaculture, can solve problems such as change, and achieve the effects of improving quality, increasing breeding density and simple method.

Inactive Publication Date: 2012-04-11
DALIAN HUIXIN TITANIUM EQUIP DEV
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Problems solved by technology

In foreign countries, there is a process of purifying cultured fish with poor water quality before they go on the market. The purified culture is only limited ...

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  • Method for improving quality of freshwater fish by using seawater to adjust salinity of circulation water culture system
  • Method for improving quality of freshwater fish by using seawater to adjust salinity of circulation water culture system

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing embodiment:

[0018] figure 1 Shown is the embodiment that sets up four independent recirculating aquaculture systems, and four independent recirculating aquaculture systems are recirculating aquaculture system I2, recirculating aquaculture system II3, recirculating aquaculture system III4 and recirculating aquaculture system IV5 , wherein the salinity of water in recirculating aquaculture system I2 is 5%, the salinity of water in recirculating aquaculture system II3 is 10%, the salinity of water in recirculating aquaculture system III4 is 15%, and in recirculating aquaculture system IV5 The salinity of the water is 20%. After collecting the carps that are scattered and cultured, they are cultured in the recirculating aquaculture system I2 for 5-8 days, and then the carps that have been cultured in the recirculating aquaculture system I2 for 5-8 days are put into the recircul...

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Abstract

A method for improving quality of freshwater fish by using seawater to adjust salinity of a circulation water culture system, comprising the following steps of farming the freshwater fish through the circulation water culture system; and periodically and orderly farming the freshwater fish which are farmed as goods in dispersed ponds in the circulation water culture system having a certain seawater for a segment of time by stages, wherein the certain quantity of seawater is added to the circulation water culture system so as to adjust the salinity of the water in the circulation water culture system. Compared with the prior art, the invention has the following advantages: the method realizes the living purification of the freshwater fish, improves the quality of the fish meat, improves the culture density and farms 50-70 kg of fish in each cubic of water; multiple batches of fish can be farmed, so the economic efficiency is high; and the cost is low, and the method is simple, so the invention can be easily operated.

Description

technical field [0001] The invention belongs to the field of freshwater fish cultivation, and in particular relates to a technology for improving the quality of commercial freshwater fish. Background technique [0002] Freshwater fish culture has two modes in the prior art, the one is scattered pond culture, and the 2nd is recirculating water culture. The disadvantage of scattered pond culture is that due to the difference in the environment and water quality of the culture area, as well as the difference in bait, the quality of the finished fish is uneven, and some even fail to meet the food hygiene standards. Recirculating aquaculture can realize factory farming, and its quality can reach a certain standard, but the quality of fish is not satisfactory. Therefore, how to improve the quality of cultured freshwater fish is a technical problem to be solved in this field. In foreign countries, there is a process of purifying the cultured fish with poor water quality before th...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 孙建明吴垠吴斌黄磊
Owner DALIAN HUIXIN TITANIUM EQUIP DEV
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