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Outdoor pond culture method for hybrid grouper of Epinephelus lanceolatu (male) * Epinephelus fuscoguttatus (female)

A technology of pearl gentian and cultivation method, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of low market competitiveness, lower feed coefficient, and incompatibility with high-density aquaculture, etc., so as to improve market competitiveness. , the effect of improving quality and taste, and reducing breeding costs

Inactive Publication Date: 2019-03-22
天津市水产研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can improve the survival rate of grouper and reduce the feed factor, but the seedling density is reduced, only 8-10 catties / m 3 , not suitable for high-density farming
Patent application number 201010164806.6 discloses a method for cultivating grouper with low salinity. This method gradually desalinates and domesticates artificially to realize grouper cultivation in water bodies with a salinity lower than 8‰ but not lower than 4‰ fish, but its stocking density is relatively low, only 480g / m 3 about
The cost of these factory farming is high and the market competitiveness is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of outdoor pond culture method of pearl gentian grouper, comprises the steps:

[0023] (1) Design of the culture pond: the culture pond has an inverted trapezoidal structure, the bottom of the culture pond is mud bottom, the rest of the slope is cement surface, and the bottom area of ​​the culture pond is 1100m 2 , pool depth 4m, water depth 3m;

[0024] (2) Pre-emergence treatment in the culture pond: for newly repaired culture ponds, drain the pool water and fully dry the silt before entering the seedlings, and then disinfect with quicklime. The dosage of quicklime is 50kg / mu; if the culture pond has been used for a long time before , you need to sprinkle quicklime to adjust the pH to 8.2; before planting, install an impeller aerator at the bottom of the pool, aerate the water at least 15 days in advance, and then disinfect;

[0025] (3) Selection and transportation of fish fry: choose fish fry with strong vitality, normal body shape, uniform size, no virus in...

Embodiment 2

[0029] A kind of outdoor pond culture method of pearl gentian grouper, comprises the steps:

[0030](1) Design of the culture pond: the culture pond has an inverted trapezoidal structure, the bottom of the culture pond is mud bottom, the rest of the slope is cement surface, and the bottom area of ​​the culture pond is 1100m 2 , pool depth 4m, water depth 3.5m;

[0031] (2) Pre-emergence treatment in the breeding pond: for newly repaired breeding ponds, drain the pool water and fully dry the silt before entering the seedlings, and then disinfect with quicklime. The dosage of quicklime is 80kg / mu; if the breeding pond has been used for a long time before , you need to sprinkle quicklime to adjust the pH to 8; install an impeller aerator at the bottom of the pool before seedlings, and aerate the water at least 15 days in advance, and then disinfect;

[0032] (3) Selection and transportation of fish fry: choose fish fry with strong vitality, normal body shape, uniform size, no vi...

Embodiment 3

[0036] A kind of outdoor pond culture method of pearl gentian grouper, comprises the steps:

[0037] (1) Design of the culture pond: the culture pond has an inverted trapezoidal structure, the bottom of the culture pond is mud bottom, the rest of the slope is cement surface, and the bottom area of ​​the culture pond is 1100m 2 , pool depth 4m, water depth 3.2m;

[0038] (2) Pre-emergence treatment in the breeding pond: for newly repaired breeding ponds, drain the pool water and fully dry the silt before entering the seedlings, and then disinfect with quicklime. The dosage of quicklime is 100kg / mu; if the breeding pond has been used for a long time before , you need to sprinkle quicklime to adjust the pH to 7.8; before planting, install an impeller aerator at the bottom of the pool, aerate the water 10 days in advance, and then disinfect;

[0039] (3) Selection and transportation of fish fry: choose fish fry with strong vitality, normal body shape, uniform size, no virus infec...

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PUM

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Abstract

The invention provides an outdoor pond culture method for a hybrid grouper of Epinephelus lanceolatu (male) * Epinephelus fuscoguttatus (female). The method comprises the following steps: designing ofa culture pond into an inverted trapezoidal structure; complete discharging of water in the pond, full drying of the pond in the sun, dredging, disinfection with quicklime, and inlet water aeration and disinfection at least 10 days before larva entrance; selection of grouper larvae, and transportation of the grouper larvae by using a live fish transporter; stocking of the grouper larvae in the culture pond, and addition of an anti-stress medicament into the culture pond in advance; controlling of the pH value to be 7.8-8.6, the dissolved oxygen content to be greater than 5 mg / L, the ammonia nitrogen content to be less than 0.2 mg / L, the nitrite content to be less than 0.1 mg / L and the salinity to be 25-35 in the stocking process; regular feeding at a fixed point 1-2 times every day, wherein the daily feeding amount is 1-5% of the weight of the grouper larvae and regular water changing, wherein sewage within an area with an edge having a distance of 0.5-1 m to the bottom of the pond ischanged every day. The method adopts the outdoor pond to imitate wild culture, and shrimps and other types of fish are simultaneously cultured in the pond, so the culturing cost is reduced by at least 50%, and the market competitiveness is greatly improved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an outdoor pond culture method for pearl gentian grouper. Background technique [0002] Pearl gentian grouper, also known as dragon tiger grouper or pearl grouper, is a new hybrid species of grouper bred from gentian grouper (♂) and tiger grouper (♀). Its parent has the advantages of fast growth, delicate meat, and strong disease resistance. It can be sold as a commercial fish or cultivated as an ornamental fish, and has a broad market prospect. At present, grouper aquaculture mainly adopts industrial recirculating aquaculture mode. For example, patent application number 201210289727.7 discloses a method for industrialized culture of grouper, which includes the following steps: (1) the design of the cement pool: the bottom of the pool is a small slope type, and a drain is established at the bottom of the pool to facilitate the bottom of the pond. Sewage discharge; in additi...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K63/00A01K63/04
CPCA01K63/003A01K63/04A01K61/10Y02A40/81
Inventor 尤宏争黄亚冬耿绪云孙学亮马林梁健孟繁盛
Owner 天津市水产研究所
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