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Artificial breeding method of sabot blue crab

A technology of soft-shell blue crabs and blue crabs, which can be used in fish farming, application, climate change adaptation, etc. It can solve the problems of not being able to meet the special needs of customers, and achieve the effects of benefiting the survival rate, reducing diseases, and plumping the meat

Inactive Publication Date: 2011-06-22
蒋荣响
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the soft shell of blue crab can only last for about 6 hours, it cannot meet the special needs of customers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (2) Thoroughly disinfect the glass pool;

[0020] (3) inject aquaculture water to the glass pond, the water level in the glass pond remains on 60 centimeters, the water body is transparent, the salinity is 5 ‰, the water temperature remains on 12 ℃, the pH value is 7.5, and the transparency of the water body is 40 centimeters;

[0021] (4) Select about 250 grams of blue crabs that have been shelled 8 times and put them into the glass pool, and put 2 blue crabs in the small area of ​​each glass pool;

[0022] (5) from the bottom of the glass pond, oxygenation of the cultured water is maintained to keep the dissolved oxygen in the cultured water at 5.1 mg / liter;

[0023] (6), the breeding time is 1 day, and the mud crab shells into a soft-shell mud crab, and its body weight increases by 40%, which is about 350 grams, and the soft shell remains for 7 days.

[0024] Example 2

Embodiment 2

[0026] (2) Thoroughly disinfect the glass pool;

[0027] (3) inject aquaculture water to the glass pond, the water level height in the glass pond remains on 50 centimeters, and salinity is 15 ‰, and water temperature remains on 15 ℃, and pH value is 7.6, and the transparency of water body is 50 centimetres;

[0028] (4) Select about 250 grams of blue crabs that have been shelled 10 times and put them into the glass pool, and put in a total of 2 blue crabs, one female and one male, in the small area of ​​each glass pool;

[0029] (5) from the bottom of the glass pool, oxygenation of the cultured water is maintained to keep the dissolved oxygen in the cultured water at 5.5 mg / liter;

[0030] (6), culture time is 5 days, and mud crab shells and becomes soft-shell mud crab, and its body weight increases by 43%, namely about 358 grams, and soft shell keeps 7 days time.

[0031] Example 3

Embodiment 3

[0033] (2) Thoroughly disinfect the glass pool;

[0034] (3) Inject aquaculture water into the glass pond, the water level height in the glass pond remains on 70 centimeters, the transparency of the water body is more than 45 centimeters, the salinity is 25‰, the water temperature remains on 16 ℃, and the pH value is 7.8;

[0035] (4) Select about 250 grams of blue crabs that have been shelled 11 times and put them into the glass pool, and put 2 blue crabs in the small area of ​​each glass pool;

[0036] (5) from the bottom of the glass pond, oxygenation of the cultured water is maintained to keep the dissolved oxygen in the cultured water at 5.8 mg / liter;

[0037] (6), breeding time is 3 days, and mud crab shells and becomes soft-shell mud crab, and its body weight increases by 38%, namely about 345 grams, and soft shell keeps 7 days time.

[0038] Example 4

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PUM

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Abstract

The invention discloses a method for artificial feeding soft shell green crab, which includes self-making glass tank, setting bamboo sheets on the bottom, separating glass tank to several small regions by sheet glass; pooling aquaculture water into the glass tank after it is sterilized thoroughly, keeping the height of water level on 50cm, clear water, 15 per mill salinity, keeping water temperature on 15 DEG C, pH 7.6; selecting green crab which has hulled for 10 times and will be appeared on the market, putting 2 green crabs into small regions of every glass tank; keepin g dissolved oxygen over 5ml / L in the aquaculture water; hulling to soft shell green crab for culturing 5 days. The artificial feeding soft shell green crab of the invention can improve the bottom ecology of the glass tank, favor the survival rate in the process of green crab hulling, decrease occurrence of disease; materials with chemical constituents are not added in the period of culture, green crab has plump meatwithout any toxin and nutrition added valve is higher; the body weight of green crab can increase about 41% after hulling, and keeps the time of soft shell of green crab for 7days.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a method for artificially cultivating soft-shell mud crabs. Background technique [0002] Scylla, also known as Scylla serrata, is a benthic crustacean. Because of its tender meat, delicious taste, rich nutrition, and medicinal functions such as clearing away heat, nourishing and disinfecting, it is generally welcomed by people and has high economic value. Every year from March to October in the lunar calendar, blue crabs moult naturally. After moulting, the new shells of blue crabs can generally keep soft for about half an hour, and then the soft shell will harden rapidly. However, because the soft shell of mud crab can only last for about 6 hours, it cannot meet the special needs of customers. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a method for artificially cultivating hard-shel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00A01K63/00
CPCY02A40/81
Inventor 蒋荣响
Owner 蒋荣响
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