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Tilapia saline water culture method

A breeding method and technology of tilapia, applied in fish farming, application, climate change adaptation, etc., can solve problems such as fish production is difficult to meet market demand, water quality environmental pollution, poor flavor, etc.

Active Publication Date: 2021-06-25
HAINAN ACADEMY OF OCEAN & FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]Freshwater aquaculture has problems such as limited water area and water resources, and water quality that is easily polluted by the environment. The annual fish production is difficult to meet the market demand
Moreover, freshwater cultured tilapia often has an earthy smell and poor flavor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Disinfect the domestication pool with quicklime, put into the salt water with a salinity of 2‰, until the water depth is 0.5 meters, control the temperature in the domestication pool to be 22°C, and the dissolved oxygen amount to be 5mg / L;

[0055] (2) select the tilapia fry whose length is 3cm, according to 150 tails / m 2 density in the acclimatization pond, and carry out salt-tolerant domestication in the acclimation pond for 12 days. After putting tilapia fry, the salinity in the acclimation pond is increased by 1.5‰ every day until the salinity in the acclimation pond reaches 20‰. No feeding for 4 days, the feeding amount in the middle 4 days is 40% of the normal feeding amount, and finally the normal feeding amount is restored;

[0056] (3) Drain the water in the culture pond, disinfect it with quicklime, and expose it to the sun for 7 days;

[0057] (4) 5 days before domestication ends, apply organic fertilizer according to the application rate of 120kg / mu in ...

Embodiment 2

[0061] (1) Disinfect the domestication pond with quicklime, put into salt water with a salinity of 5‰ until the water depth is 0.7 meters, control the temperature in the domestication pond to be 25°C, and the dissolved oxygen amount to be 7mg / L;

[0062] (2) select the tilapia fry whose length is 5cm, according to 125 tails / m 2 density in the acclimatization pond, and carried out salt-tolerant acclimation in the acclimatization pond for 10 days. After putting tilapia fry, the salinity in the acclimation pond was increased by 1‰ every day until the salinity in the acclimation pond reached 15‰. No feeding for 3 days, the feeding amount in the middle 3 days is 50% of the normal feeding amount, and finally the normal feeding amount is restored;

[0063] (3) Drain the water from the culture pond, disinfect it with quicklime, and expose it to the sun for 8 days;

[0064] (4) 6 days before domestication ends, apply organic fertilizer according to the application rate of 160kg / mu in ...

Embodiment 3

[0068] (1) Disinfect the domestication pond with quicklime, put into salt water with a salinity of 6‰, until the water depth is 0.8 meters, control the temperature in the domestication pond to be 28°C, and the dissolved oxygen amount to be 9mg / L;

[0069] (2) select the tilapia fry whose length is 6cm, according to 100 tails / m 2 density in the acclimatization pool, and carried out salt-tolerant acclimatization in the acclimatization pool for 9 days. After putting tilapia fry, the salinity in the acclimation pool was increased by 1.2‰ every day until the salinity in the acclimation pool reached 16.8‰. No feeding for 3 days, the feeding amount in the middle 3 days was 60% of the normal feeding amount, and finally the normal feeding amount was restored;

[0070] (3) Drain the water in the culture pond, disinfect it with quicklime, and expose it to the sun for 10 days;

[0071] (4) 7 days before domestication ends, apply organic fertilizer according to the application rate of 180...

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Abstract

The invention relates to the technical field of aquaculture, and provides a tilapia saline water culture method. The tilapia saline water culture method comprises the following steps that (1), tilapia fries with the length of 3-6cm are selected, and salt-tolerant domestication is carried out in a domestication pool for 9-12 days; (2), 5-7 days before domestication is finished, organic fertilizer is applied into a culture pond, and the salinity in the culture pond is controlled to be 1.5%-2%; (3), after domestication is finished, the tilapia fries are transferred into the culture pond, and feeding is started after 3-7 days; and (4), water is changed once every 3-5 days after the fries start to be fed, and the fries can be caught 120-150 days later. According to the tilapia saline water culture method, the survival rate of the tilapia in saline water culture can be effectively increased, and industrial culture is achieved; and meanwhile, the yield of the tilapia is increased, remarkable economic benefits are achieved, the earthy smell of fish meat is reduced, and the quality is improved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a tilapia saltwater culture method. Background technique [0002] Tilapia is native to Africa and is a tropical fish. There are more than 100 species of Tilapia including subspecies. Tilapia has the characteristics of fast growth, high output, miscellaneous food habits, less diseases, and strong fecundity. [0003] Tilapia is the main aquaculture product in my country. Its meat is delicious, with few thorns, high protein content, and rich in 8 kinds of essential amino acids needed by the human body, among which the content of glutamic acid and glycine is particularly high. Tilapia is deeply loved by people because of the above characteristics. It is known as "white meat salmon" and "fish of the 21st century". In recent years, it has become one of the hot spots for breeding, processing and exporting. [0004] Freshwater aquaculture has problems such as limited water area an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K63/04
CPCA01K61/10A01K63/04Y02A40/81
Inventor 李芳远
Owner HAINAN ACADEMY OF OCEAN & FISHERIES SCI
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