Culture method for improving quality of euryhaline sea fish

A culture method and quality technology, applied in fish farming, application, climate change adaptation and other directions, can solve the problems of the use of fish medicines not reaching the prescribed withdrawal period, high risk, low cost, etc., and avoid poor quality of pond culture. , Avoid frequent prevention and control, and improve the effect of product quality

Inactive Publication Date: 2010-07-21
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cage culture areas are relatively concentrated, with many diseases, difficult to prevent and control, greatly affected by weather and environment, high mortality rate, high risk and high cost, but the product appearance and meat quality of the commercial fish produced are better; pond culture diseases are more prone to Controlled, relatively less affected by weather and environment, high survival rate, low risk and low cost, but the appearance and taste of commercial fish produced are poor
Although some enterprises and individuals have transformed into intensive farming, there are also some farmers who use unbalanced feed for a long time or blindly pursue growth speed in the breeding process, and overfeed them, resulting in color difference, loose meat, and fat accumulation of commercial fish. Too much and lose the taste that high-end fish should have
During fish disease epidemic seasons, farmers often use drugs for treatment while fishing for the market. The use of fish drugs has not reached the prescribed drug withdrawal period. The quality of aquaculture products lacks effective supervision methods, and there are hidden dangers in the quality and safety of products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The culture to improve the quality of the grouper includes the following steps:

[0016] A. Select 5-6cm healthy seedlings with neat specifications to desalinate step by step in the cement pool. The proportion of water for cultivation is desalinated step by step according to the gradient of 1.020, 1.015, 1.010, 1.005, and 1.002. The duration of each gradient is 2 sky;

[0017] B, the desalinated fish fingerlings are put into the low-salinity pond whose specific gravity is 1.002, the pond area is 8 mu, the water depth is 1.7m, equipped with 4 sets of 1.1kw aerators, and the breeding density is 2000 tails / mu;

[0018] C. Add a small amount of eel powder with chilled miscellaneous fish meat, feed 1-2 times a day, and the daily feeding amount is 5-8% of the fish's body weight, and adjust appropriately according to the different growth stages, water temperature, water quality conditions and health status of the fish The frequency and amount of feeding;

[0019] D. Maintain...

Embodiment 2

[0026] The breeding method for improving the quality of ovoid pomfret comprises the following steps:

[0027] A. Select 3-5cm healthy seedlings with neat specifications to desalinate step by step in the cement pool. The proportion of water for cultivation is desalinated step by step according to the gradient of 1.020, 1.015, 1.010, 1.005, and 1.003. The duration of each gradient is 1 sky;

[0028] B, the desalinated fish fingerlings are put into the low-salinity pond whose specific gravity is 1.003, the pond area is 5 mu, the water depth is 1.4m, equipped with 3 sets of 1.1kw aerators, and the breeding density is 2000 tails / mu;

[0029] C. Use full-price compound feed, feed twice a day, and the daily feeding amount is 4-6% of the fish's body weight. Adjust the feeding frequency and feeding amount according to the different growth stages, water temperature, water quality conditions and health status of the fish. ;

[0030] D. Maintain the green water color of the pond, keep t...

Embodiment 3

[0037] The culture method to improve the quality of barramundi includes the following steps:

[0038] A. Select 2-3cm healthy seedlings with neat specifications to desalinate step by step in the cement pool. The proportion of water for cultivation is desalinated step by step according to the gradient of 1.020, 1.015, 1.010, 1.005, 1.001, and the duration of each gradient is 1 sky;

[0039] B, the desalinated fish fingerlings are put into the low-salinity pond whose specific gravity is 1.001, the pond area is 10 mu, the water depth is 1.7m, equipped with 6 sets of 1.1kw aerators, and the breeding density is 3000 fish / mu;

[0040] C. Use full-price compound feed or chilled small miscellaneous fish, feed twice a day, and the daily feeding amount is 4-8% of the fish's body weight. Adjust the feeding according to the different growth stages, water temperature, water quality conditions and health status of the fish. Feeding frequency and feeding amount;

[0041] D. Maintain the gr...

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PUM

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Abstract

The invention relates to a culture method for improving the quality of euryhaline sea fish, which comprises the following steps that: the high-quality health offspring seed is selected to be arranged inside a low-salinity pond to culture after being desalted; the semi-finished product fish 1 to 2 months before reaching the commodity specification is arranged into a sea net cage after being salted to undertake the purification culture; and the feed nutrition is improved, and the environment-friendly additives are added into the feed to prevent the disease and to promote the healthy growth of the cultured fish. All drugs are stopped, so the commodity fish can reach the best color and taste, and the harmful substance and residual drugs inside the fish body can be metabolized to the safe range. The color and the taste of the cultured sea fish are close to that of the natural sea fish, the quality is high, the fish is safe to eat, and the culture method can be used for culturing different euryhaline sea fishes.

Description

technical field [0001] The invention relates to a breeding method for improving the quality of euryhaline seawater fish. Background technique [0002] At present, marine fish culture is mainly based on sea cage culture and pond culture. Cage culture areas are relatively concentrated, with many diseases, difficult to prevent and control, greatly affected by weather and environment, high mortality rate, high risk and high cost, but the product appearance and meat quality of the commercial fish produced are better; pond culture diseases are more prone to Controlling, relatively low impact by weather and environment, high survival rate, low risk and low cost, but the product quality and taste of commercial fish are poor. Although some enterprises and individuals have transformed into intensive farming, there are also some farmers who use unbalanced feed for a long time or blindly pursue growth speed in the breeding process, and overfeed them, resulting in color difference, loos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 杜涛黄洋黄海立宋长江
Owner GUANGDONG OCEAN UNIVERSITY
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