Aquatic breeding method for Epinephelus coioides

A technology of oblique-banded grouper and breeding method, which is applied in the field of breeding precious seawater fish, can solve the problems of slow growth of grouper, environmental pollution, and many adult fish diseases, and achieve adult fish food safety and environmental protection. Effect that there are few diseases of pollution, fish

Inactive Publication Date: 2005-08-17
ZHUHAI NANHUA AQUATIC TECHNOLOGICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are following major problems in this culture method: 1, the pollution of environment causes the deterioration of offshore water quality, makes grouper grow slowly, and disease increases, and culture yield is low; Disaster damage caused the escape of the grouper and affected the breeding output; 3. The workers worked in the open sea for a long time, which was labor-intensive and the breeding efficiency was low; 4. The residual bait, fish excrement and drugs produced during the breeding process were polluted The pollutants directly enter the sea area, causing the offshore environment to deteriorate further
Therefore the existing culture method of oblique grouper is inefficient, pollutes the environment and has many adult fish diseases, and is unsafe to eat

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The culturing method of slanted grouper of the present invention comprises the following steps:

[0016] A, set up indoor culture pond and biofilter, described culture pond is connected with described biofilter;

[0017] B, drop the grouper fry of 50 grams of body weight in the described breeding pond, and stocking density is 40 tails / m 3 ;

[0018] C. Use chilled fresh miscellaneous fish meat or fish pieces as bait, feed once a day, and the feeding amount is 5% of the fish's body weight;

[0019] D, driving the water circulation in the culture pond, so that the culture water first flows through the biofilter and then returns to the culture pond, and the daily circulation of the culture water is 6 times of the water body volume of the culture pond;

[0020] E. The light intensity in the control room is 200Lux, the salinity of the breeding water is 20‰, the temperature of the breeding water is 20°C, and the dissolved oxygen concentration is 6mg / L;

[0021] When F, des...

Embodiment 2

[0024] The culturing method of slanted grouper of the present invention comprises the following steps:

[0025] A, set up indoor culture pond and biofilter, described culture pond is connected with described biofilter;

[0026] B, drop the grouper fry of 50 grams of body weight in the described breeding pond, and stocking density is 55 tails / m 3 ;

[0027] C. Use chilled miscellaneous minced fish or fish pieces as bait, feed once a day, and the feeding amount is 8% of the fish's body weight;

[0028] D, driving the water circulation in the culture pond, so that the culture water first flows through the biofilter and then returns to the culture pond, and the daily circulation of the culture water is 10 times of the water body volume of the culture pond;

[0029] E. The light intensity in the control room is 600Lux, the salinity of the breeding water is 33‰, the temperature of the breeding water is 32°C, and the dissolved oxygen concentration is 9mg / L;

[0030] When F, descri...

Embodiment 3

[0033] The culturing method of slanted grouper of the present invention comprises the following steps:

[0034] A, vertical indoor culture pond and biofilter, described culture pond is connected with described biofilter;

[0035] B, put in the 50 grams of grouper fry of body weight in described breeding pond, stocking density is 45 tails / m 3 ;

[0036] C. Use chilled fresh miscellaneous fish meat or fish pieces as bait, feed once a day, and the feeding amount is 6% of the fish's body weight;

[0037] D, driving the water circulation in the culture pond, so that the culture water first flows through the biofilter and then returns to the culture pond, and the daily circulation of the culture water is 7 times the volume of the water body of the culture pond ;

[0038] E. The light intensity in the control room is 300Lux, the salinity of the breeding water is 25‰, the temperature of the breeding water is 26°C, and the dissolved oxygen concentration is 7mg / L;

[0039] When F, d...

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PUM

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Abstract

The present invention discloses one kind of Epinephelus coioide culturing method and aims at provides Epinephelus coioide culturing method with high efficiency, no environmental pollution and adult fish eating safety. The method includes constructing indoor culture pond and biological filtering pond, throwing Epinephelus coioide fry of 50 g weight into the culture pond and raising with bait while controlling the conditions essential for Epinephelus coioide to grow. The indoor raising method has no escape of Epinephelus coioide, fast growth and high raising efficiency. The communicated indoor culture pond and biological filtering pond can ensure high water quality, less fish disease, no environmental pollution and adult fish eating safety. The technology of the present invention is applicable in culture of other fish.

Description

technical field [0001] The invention relates to a method for cultivating precious seawater fish, in particular to a method for cultivating grouper. Background technique [0002] The oblique-banded grouper (Epinephelus coioides) is a rare marine treasure, and it is also an important cultured fish species in the southern coastal provinces of my country. It is generally cultured in shallow sea cages. But there are following major problems in this culture method: 1, the pollution of environment causes the deterioration of offshore water quality, makes grouper grow slowly, and disease increases, and culture yield is low; Disaster damage caused the escape of the grouper and affected the breeding output; 3. The workers worked in the open sea for a long time, which was labor-intensive and the breeding efficiency was low; 4. The residual bait, fish excrement and drugs produced during the breeding process were polluted The pollutants directly enter the sea are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 蒙耀荣陈郁辉
Owner ZHUHAI NANHUA AQUATIC TECHNOLOGICAL
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