Tilapia saline water aquaculture method

A culture method and tilapia technology, applied in fish farming, application, climate change adaptation and other directions, can solve the problems of limited aquaculture production, earthy smell, poor salt tolerance, etc., and achieve good flavor of tilapia meat. , the effect of expanding the breeding area and the high survival rate of fry

Inactive Publication Date: 2018-04-24
HAINAN ACADEMY OF OCEAN & FISHERIES SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among them, Nile tilapia (Oreochromis niloticus) accounts for more than 90% of the total tilapia production. Since 1978, it has been introduced to China many times and has become one of the main farmed fish in China. It grows fast but its salt tolerance is not strong , cannot be cultured in sea water, basically limited to the production of cultured in fresh water bodies
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

[0038] Test fish: Nile tilapia, tilapia fry to be domesticated for salt tolerance weighs 5-7 grams, with complete scales and fin rays, no trauma, and strong vitality.

[0039] Salt water used in the test: sea crystal and groundwater (salinity 0) are configured, and the salinity of the water body is 11‰.

[0040] The tilapia feed used in the test is a commercially available tilapia special compound feed, and the feed formula is the same as the standard "Tilapia Compound Feed".

[0041] The tilapia saltwater culture method comprises the steps:

[0042] 1) Seedlings in cement ponds (6.0m×5.0m×1.6m) were salt-tolerant and domesticated for 3 days, 200 were stocked in each pond, and the salinity was increased by 2‰ every day without feeding.

[0043] 2) Continue the salt-tolerant domestication for 3 days, increase the salinity by 0.8‰ every day, gradually increase the feeding amount, and reach the normal feeding amount on the third day, change the water once every morning, and the ...

Embodiment 2

[0048] Test fish: Nile tilapia, tilapia fry to be domesticated for salt tolerance weighs 8-10 grams, with complete scales and fin rays, no trauma, and strong vitality.

[0049] Salt water for the test: sea salt and ground water (salinity 0), the salinity of the water body is 11g / L.

[0050] The tilapia feed used in the test is a commercially available tilapia special compound feed, and the feed formula is the same as the standard "Tilapia Compound Feed".

[0051] The tilapia saltwater culture method comprises the steps:

[0052] 1) Seedlings in cement ponds (6.0m×5.0m×1.6m) were salt-tolerant and domesticated for 3 days, and 100 tails were stocked in each pond, and the salinity was increased by 2g / L every day without feeding.

[0053] 2) Continue the salt-tolerant domestication for 3 days, increase the salinity by 0.8g / L every day, gradually increase the feeding amount, and change the water once every morning to 50% of the total volume until the third day reaches the normal f...

Embodiment 3

[0058] Test fish: Nile tilapia, tilapia fry to be domesticated for salt tolerance weighs 7-9 grams, with complete scales and fin rays, no trauma, and strong vitality.

[0059] Salt water for the test: sea salt and ground water (salinity 0), the water salinity is 10g / L.

[0060] The tilapia feed used in the test is a commercially available tilapia special compound feed, and the feed formula is the same as the standard "Tilapia Compound Feed".

[0061] The tilapia saltwater culture method comprises the steps:

[0062] 1) Seedlings in cement ponds (6.0m×5.0m×1.6m) were salt-tolerant and domesticated for 3 days, and 150 fish were stocked in each pond, and the salinity was increased by 1.5g / L every day without feeding.

[0063] 2) Continue the salt-tolerant domestication for 3 days, increase the salinity by 0.8g / L every day, gradually increase the feeding amount, and change the water once every morning to 50% of the total volume until the normal feeding amount is reached on the se...

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Abstract

The invention discloses a tilapia saline water aquaculture method, and belongs to the technical field of aquaculture. The tilapia saline water aquaculture method includes the steps: 1) tilapia salt-resistant domestication; 2) tilapia breeding in a salt water aquaculture pond. Particularly, feeding of tilapia fries is reduced or stopped during salt-resistant domestication. According to the tilapiasaline water aquaculture method, the survival rate of the tilapia fries highly reaches 90% or more, the IGR (instantaneous weight gain rate) and the AGR (absolute weight gain rate) of the tilapia harvested after saline water aquaculture of 120 days are not more remarkable than those of the tilapia after freshwater aquaculture, and earthy taste of the tilapia is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a tilapia culture method in salt water. Background technique [0002] Tilapia (Oreochromis mossambila), commonly known as African crucian carp, non-crucian carp, Vietnamese fish, South Sea crucian carp, etc., belongs to Perciformes, Perciformes, Cichlidae, Tilapia, and originally refers to Mozambique as the model origin Oreochromis mossambicus species: Mozambique Oreochromis mossambicus (scientific name: Oreochromis mossambicus), is now the common name of several species of fish in the family Cichlidae and Oreochromis; collectively known as Tilapia in English . Tilapia has a wide range of food habits, most of which are plant-based omnivorous, very gluttonous, and consume a large amount of food; they grow rapidly, especially in the juvenile stage. The growth of tilapia is closely related to temperature, the growth temperature is 16-38°C, and the optimum temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 李芳远佟延南李高俊赵光军朱海王德强申志新
Owner HAINAN ACADEMY OF OCEAN & FISHERIES SCI
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