Indoor water segmented marine fish fry breeding method

A segmented, water-based technology, applied in the field of marine fish farming, can solve problems such as weak disease resistance, strong drug dependence of fry, increased breeding costs and management difficulties, so as to improve adaptability and disease resistance, and promote rapid synchronization Growth and the effect of improving the survival rate of fry

Inactive Publication Date: 2015-03-04
吴敬民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the use of drugs can improve the survival rate of fry, the cultivated fry are highly dependent on drugs, have weak disease resistance, and poor adaptability, which increases the cost of rearing and management difficulties in the later stage, and is prone to slow growth of fry and easy infection o...

Method used

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  • Indoor water segmented marine fish fry breeding method
  • Indoor water segmented marine fish fry breeding method
  • Indoor water segmented marine fish fry breeding method

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A method for breeding sea fish fry in indoor water bodies, comprising the following steps:

[0026] (1) Hatching of fish eggs

[0027] The water body of the hatching pond was naturally precipitated for 3 days. During the precipitation process, nano-light irradiation was used for disinfection. After precipitation, the upper water body was filtered through a 200-mesh sieve to remove impurities in the water body before use. Add 300mL of aircraft grass root water extract per cubic meter of water body. Maintain a pH value of 8.2, soak fish eggs in chlorine dioxide with a mass concentration of 0.15 mg / L for 3 minutes to disinfect the shell, and then put them into the hatching water to hatch the larvae. During the hatching process, keep the temperature at 25°C, dissolved oxygen at 5-6 mg / L, Degree 28‰;

[0028] (2) Feeding of larvae

[0029] Three days after the fry are hatched, use light or food smell to introduce the larvae from the hatchery to the nursery pond for rearing...

Embodiment 2

[0031] A method for breeding sea fish fry in indoor water bodies, comprising the following steps:

[0032] (1) Hatching of fish eggs

[0033] The water body in the hatching pool has undergone natural precipitation for 4 days. During the precipitation process, nano-light irradiation is used for disinfection. After precipitation, the upper water body is filtered through a 230-mesh sieve to remove impurities in the water body. Maintain a pH value of 8.4, soak fish eggs in chlorine dioxide with a mass concentration of 0.17mg / L for 4 minutes to disinfect the shell, and then put them into the hatching water to hatch the larvae. During the hatching process, keep the temperature at 27°C, dissolved oxygen at 5-6mg / L, salt Degree 29‰;

[0034] (2) Feeding of larvae

[0035] Three days after the fry hatch, use light or food smell to introduce the larvae from the hatchery pond to the nursery pond for rearing; the water body in the nursery pond is pre-cultivated for 10 days, and sufficie...

Embodiment 3

[0037] A method for breeding sea fish fry in indoor water bodies, comprising the following steps:

[0038] (1) Hatching of fish eggs

[0039] The water body in the hatching pool has been naturally precipitated for 5 days. During the precipitation process, it is sterilized by nano-light irradiation. After precipitation, the upper water body is filtered through a 250-mesh sieve to remove impurities in the water body. Add 500mL of aircraft grass root water extract per cubic meter of water body. Maintain a pH value of 8.5, soak fish eggs in chlorine dioxide with a mass concentration of 0.2mg / L for 5 minutes to disinfect the shell, and then put them into the hatching water to hatch the larvae. During the hatching process, keep the temperature at 28°C, dissolved oxygen 5-6mg / L, salt Degree 30‰;

[0040] (2) Feeding of larvae

[0041]Three days after the fry are hatched, use light or food smell to introduce the larvae from the hatchery pond to the nursery pond for rearing; the wate...

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Abstract

The invention relates to the field of marine fish culturing, and discloses an indoor water segmented marine fish fry breeding method. The method comprises the following steps: (1) fish eggs are hatched; (2) fish fries are cultured. According to the invention, a hatching pool and a nursery pool are separately arranged. Water is purified in advance, and various biological feeds are cultured in advance, such that living conditions in the hatching pool and the nursery pool are regulated, and a relatively stable circulation water condition is provided. No drug such as hormone or antibiotic is needed to be added during the hatching and fish fry breeding processes. Physical and chemical factors such as the temperature, pH value, dissolved oxygen, salinity, and the like of the water in the hatching pool and the nursery pool can remain relatively stable. The water quality is maintained stable, and the fish fries are prevented from having stress responses and drug resistance. A survival rate of the fish fries can reach approximately 14%.

Description

technical field [0001] The invention relates to the field of marine fish breeding, in particular to a segmented marine fish fry breeding method in an indoor water body. Background technique [0002] Fry breeding is one of the most important links in marine fish farming. Every year from March to November is the peak period for hatching and breeding of various fish. The hatching and breeding of fish eggs have higher requirements on water quality, water temperature and the prevention and control of harmful organisms. As long as there is a problem in one aspect, it may lead to the failure of the entire hatching process, bringing incalculable losses, and seriously restricting the development of the entire marine fish farming industry. Therefore, fry hatching and breeding are an extremely important link in the artificial breeding of marine fish. The existing hatching and breeding methods of fish eggs are generally carried out outdoors, and it is difficult to control the water t...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01K61/17
CPCA01K61/00Y02A40/81
Inventor 吴敬民
Owner 吴敬民
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