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Cultivating method of giant salamander

A breeding method and technology for salamanders, applied in the field of fishery ecological breeding, can solve the problems of long cultivation period and influence on fish growth, and achieve the effects of short cultivation period, rapid growth and meeting market demand.

Inactive Publication Date: 2012-02-22
彭小娥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, salamander is a rare species. With the intensification of pollution in economically developed areas, it has been hunted and killed by people for a long time, and the number of each production area has dropped sharply. It is necessary to cultivate artificial salamander to meet market demand. Artificially cultivated salamander usually takes 2.5 to 3 years. , the cultivation cycle is long and cannot meet the needs of the market. Some artificial breeding uses chemical agents for disinfection, which itself has a certain impact on the growth of fish

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The method for cultivating baby fish of the present invention selects healthy and well-regulated fry, and the fry less than 400g is cultured in fresh water; when the fry grows to 400g, selects the low-salinity seawater culture with a specific gravity of 0.02, and the culture temperature is 12 ℃, dissolved oxygen is not less than 5mg / L; feed twice a day, the feed is live red mango shrimp in the sea, the daily feeding amount is 10% of the fish body weight; during the breeding period, disinfect once every 15 days; fry When it grows to 400g, it is disinfected in a mixture of fresh water and seawater with a specific gravity of 0.1, and the disinfection time is 0.25 hours; when the fry grows to 550g, it is disinfected in a mixture of fresh water and seawater with a specific gravity of 0.2, and the disinfection time is 0.4 hours.

Embodiment 2

[0015] A method for breeding baby fish of the present invention,

[0016] Choose healthy and well-regulated fry, and culture the fry less than 400g in freshwater; when the fry grows to 450g, choose the low-salinity seawater with a specific gravity of 0.03, the culture temperature is 17℃, and the dissolved oxygen is not less than 5mg / L ; Feed the bait three times a day, the bait is live small trash fish in the sea, the daily feeding amount is 15% of the fish body weight; during the breeding period, disinfection is performed every 17 days; when the fry grows to 450g, the proportion of fresh water and fresh water is 0.15 The disinfection time is 0.3 hours in the mixed water of seawater; the fry grow to 800g, and the disinfection time is 0.55 hours in the mixed water of fresh water and seawater with a specific gravity of 0.3.

Embodiment 3

[0018] The method for cultivating baby fish of the present invention selects healthy and well-regulated fry, and the fry less than 400g is cultivated in fresh water; when the fry grows to 500g, the fish fry grows to be cultured in low-salinity seawater with a specific gravity of 0.04, and the culture temperature is 22 ℃, dissolved oxygen is not less than 5mg / L; feed four times a day, the feed is live red mango shrimp, small trash fish and white shrimp in the sea, the daily feeding amount is 20% of the fish body weight; during the breeding period, every 20 When the fry grows to 500g, they are disinfected in a mixture of fresh water and seawater with a specific gravity of 0.2, and the disinfection time is 0.35 hours; when the fry grows to 1000g, they are disinfected in a mixture of fresh water and seawater with a specific gravity of 0.4. The disinfection time is 2 hours.

[0019] Put in natural food, live red mango shrimp, small trash fish and white shrimp in the sea area, relying ...

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Abstract

The invention relates to a cultivating method of a giant salamander. The cultivating method comprises the following steps of: selecting healthy and regular fries, and cultivating fries with weight less than 400 g in fresh water; cultivating in low-salinity sea water with specific gravity of 0.02-0.04 when the fries grow to 400-500 g, wherein the cultivating temperature is 12-22 DEG C and the dissolved oxygen is not lower than 5 mg / L; feeding bait at least twice every day, wherein the daily feeding amount is 10-20% of the weight of the fish; disinfecting once every 15-20 days in the cultivating stage, and disinfecting in fresh water and sea water mixture with the specific gravity of 0.1-0.2 when the fries grow to 400-500 g; and disinfecting in fresh water and sea water mixture with the specific gravity of 0.2-0.4 for 0.25-2 hours when the fries grow to more than 500 g. The cultivating method has the advantages that: natural bait is fed, the fries grow fast, the problem of high incidence rate is solved, the cultivating period is shot, and the market requirement is met.

Description

Technical field [0001] The invention relates to a breeding method of baby fish, belonging to fishery ecological breeding technology. Background technique [0002] The baby fish, not a fish, is the largest and most precious amphibians in existence. It is a national second-class protected aquatic wild animal. The baby fish has delicious meat, fat but not greasy, and contains essential amino acids to promote human physiological activity. It is known as Living ginseng in water; its medicinal value is also high, it can extract anti-cancer genes; its beauty value is high, it can regulate human microcirculation and prevent heavy metal poisoning. However, the baby fish is a rare species. As the pollution in the economically developed areas increases, it has been hunted and killed in large numbers for a long time. The number of production areas has dropped sharply. Artificial baby fish is cultivated to meet market demand. Artificially cultivated baby fish usually takes 2.5 to 3 years. ,...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 彭小娥
Owner 彭小娥
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