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A method for high-density cultivation of copepods in indoor large ponds

A breeding method and copepod technology, applied in the field of aquaculture, can solve the problems of unable to guarantee the quantity, stable quality and timely supply of copepods, being easily contaminated by viruses and bacteria, and difficult to achieve high-density breeding, so as to save manpower , low cost of breeding, little water pollution

Active Publication Date: 2017-02-15
LUDONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional copepod farming has problems such as relatively long generation cycle and difficulty in achieving high-density farming. Therefore, the application of copepods as large-scale biological bait is subject to certain restrictions.
At present, aquaculture farmers in my country mainly obtain copepods by fishing at sea and extensive outdoor cultivation. They only rely on wild fishing, which obviously cannot meet the needs of the modern aquaculture industry; outdoor extensive cultivation lacks strict control over the cultivation conditions, resulting in insufficient production. Stability, short continuous supply time, susceptibility to virus and bacterial contamination, etc., cannot guarantee the stable and timely supply of the quantity and quality of copepods
Once the supply of copepods is interrupted or delayed, the survival rate of fry will be significantly reduced, and in severe cases, a large number of fry will die

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1: a kind of indoor high-density breeding method of copepods, its steps are as follows:

[0055] 1) Pre-processing:

[0056] Select volume 18m 3 , a depth of 1.0m, a culture pond with a complete seawater treatment system and air supply system; natural light is sufficient, no artificial light is required, the overall light intensity is weak, and the average light intensity is 500lux ~ 1500lux; the pond should be cleaned before cultivation, and the The purpose is to kill the harmful organisms and germs of copepods. The method of cleaning the pool is to make a 0.002 mol / l solution of potassium permanganate (there is no specific standard for the amount, depending on the sanitation level of the pool) and then sprinkle it on the pool. In the middle, rinse with fresh water after disinfection, and use it after drying for 5 days;

[0057] 2) Fertilizer:

[0058] Inject the seawater of 21 ℃ after the sand filter into the cultivation pond, use 120 mesh sieve tulle to...

Embodiment 2

[0081] Embodiment 2: a kind of indoor high-density breeding method of copepods, its steps are as follows:

[0082] 1) Pre-processing:

[0083] Select volume 10m 3 , depth 1.5m, seawater treatment system and aquaculture pond with complete air supply system; use natural light, no artificial light is needed, the overall light intensity is weak, and the average light intensity is 500lux ~ 1500lux; clean the pond before cultivating, and clean the pond The purpose is to kill the harmful organisms and germs of copepods. The method of cleaning the pool is to make a 0.005 mol / l solution of potassium permanganate (there is no specific standard for the amount, depending on the sanitation level of the pool) and then sprinkle it on the pool. In the middle, rinse with fresh water after disinfection, and use it after drying for 4 days;

[0084] 2) Fertilizer:

[0085] Inject the seawater of 25 ℃ after sand filtration into the cultivation pond, and use 120 mesh sieve tulle to filter the wa...

Embodiment 3

[0108] Embodiment 3: a kind of indoor high-density breeding method of copepods, its steps are as follows:

[0109] 1) Pre-processing:

[0110] Select volume 25m 3 , a depth of 1.1m, a culture pond with a complete seawater treatment system and air supply system; use natural light, no artificial light is required, the overall light intensity is weak, and the average light intensity is 500lux ~ 1500lux; clean the pond before cultivating, and clean the pond The purpose is to kill the harmful organisms and germs of copepods. The method of cleaning the pool is to make a 0.001 mol / l solution of potassium permanganate (there is no specific standard for the amount, depending on the sanitation level of the pool) and then sprinkle it on the pool. In the middle, rinse with fresh water after disinfection, and use it after drying for 2 days;

[0111] 2) Fertilizer:

[0112] Inject the seawater of 15 ℃ after sand filtration into the breeding pond, and use 120 mesh sieve tulle to filter th...

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Abstract

The invention relates to a high-intensity aquaculture method for copepoda in an indoor large pool. The high-density aquaculture method for the copepoda in the indoor large pool includes that filling filtered seawater with a proper temperature in an aquaculture pool, and fertilizing the water; inoculating the copepoda to the aquaculture pool at nightfall, and feeding artificial compound copepoda bait at nightfall in the next day of the copepoda inoculating day, and guaranteeing the balanced nutrition of the copepoda in the growth and breeding process; continuously supplying air in the aquaculture process to keep the dissolved oxygen of the water body at more than 5 mg / L, and harvesting the copepoda according to the need after the copepoda density is high through 12 to 18 days aquaculture. The high-density aquaculture method for the copepoda in the indoor large pool realizes the indoor high-density and sustainable copepoda aquaculture through improving the harvesting mode and regulating the water quality. The weather factor disturbance is effectively avoided, and the aquaculture water environment is good; through the artificial feed preparation and processing and the temperature control, the copepoda growth speed is effectively improved, and the copepoda quality and yield are stabilized. The high-density aquaculture method for the copepoda in the indoor large pool is low in cost, short in period and capable of realizing sustainable production, and guarantee is provided for obtaining a lot of living copepoda in the cold season of China especially Northern China.

Description

[0001] Technical field: [0002] The invention relates to a method for cultivating copepods, in particular to a method for cultivating copepods with high density in an indoor large pond, belonging to the field of aquaculture. [0003] Background technique: [0004] Copepods are small crustaceans with distinctly segmented bodies. The growth and development process of copepods has metamorphosis, mainly going through three stages: egg, nauplii stage, larvae stage and adult. The larvae need to molt before they can develop into adults. Since the 1980s, copepods have been widely used in aquaculture in my country. They are important and palatable bait for fish, shrimp, and crab seedlings. They have the characteristics of wide distribution and high nutritional value. Especially in recent years, with the continuous advancement of the industrialization process of high-value marine fish farming technologies such as large yellow croaker and seahorse, copepods have undoubtedly become one o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/30A23K10/26A23K10/18A23K20/20A23K20/174
CPCA01K61/59Y02A40/81Y02A40/818
Inventor 王凯李坤明洋雯李敏吕德亮林强
Owner LUDONG UNIVERSITY
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