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A method for indoor cultivation of soft-shell mud crabs

A technology of mud crabs and soft shells, which is applied in the field of indoor cultivation of soft shell mud crabs, can solve the problems of high mortality of mud crabs, unfavorable shelling of mud crabs, and high labor intensity, so as to improve breeding benefits and shorten the production time. Cultivation cycle and the effect of reducing labor intensity

Inactive Publication Date: 2015-08-26
ZHEJIANG MARINE DEV RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems that the cultivation method of soft-shelled mud crabs in the prior art is labor-intensive, unfavorable for shelling of mud crabs, high in mortality rate of mud crabs, and low in weight gain, and provides an indoor soft-shelled mud crab cultivation method. The method for Scylla serrata has simple steps, can greatly reduce labor intensity, and is suitable for large-scale production. Through the optimization and improvement of breeding conditions and compound feed, the soft-shell Scylla serrata has a high survival rate and a high weight gain rate. Large, which is conducive to improving breeding efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for cultivating soft-shell mud crabs indoors, comprising the following steps:

[0030] (1) Selection of breeding pools

[0031] The indoor cement pool is used as the cultivation pool, the pH of the pool water is 7.8, the salinity is 6‰, the water depth is 50cm, and the dissolved oxygen is ≥5g / m 3 , the water temperature is 20°C, ammonia nitrogen ≤ 0.4 mg / L, hydrogen sulfide ≤ 0.1 mg / L, and the breeding tank is equipped with a breeding box, and the breeding box is 5 pieces / m 2 The scale rests on a raft frame.

[0032] (2) Selection of breeding crabs

[0033] Scylla serrata adult crabs weighing ≥200g are selected as breeding crabs, and the breeding crabs are required to have hard shells, blue color, complete appendages, no injuries, sensitive responses, and strong vitality.

[0034] (3) Disinfection of the cultivation pool

[0035] Sprinkle 300ppm of quicklime in the cultivation pond to disinfect the cultivation pond for 48 hours. After disinfection, rin...

Embodiment 2

[0041] A method for cultivating soft-shell mud crabs indoors, comprising the following steps:

[0042] (1) Selection of breeding pools

[0043] The indoor cement pool is used as the cultivation pool, the pH of the pool water is 9.0, the salinity is 6.5‰, the water depth is 55cm, and the dissolved oxygen is ≥5g / m 3 , the water temperature is 22°C, ammonia nitrogen ≤ 0.4 mg / L, hydrogen sulfide ≤ 0.1 mg / L, and the breeding tank is equipped with a breeding box, the number of which is 6 / m 2 The scale rests on a raft frame.

[0044] (2) Selection of breeding crabs

[0045] Scylla serrata adult crabs weighing ≥200g are selected as breeding crabs, and the breeding crabs are required to have hard shells, blue color, complete appendages, no injuries, sensitive responses, and strong vitality.

[0046] (3) Disinfection of the cultivation pool

[0047] Sprinkle 220 ppm of bleaching powder in the cultivation pond to disinfect the cultivation pond. The disinfection time is 30 hours....

Embodiment 3

[0053] A method for cultivating soft-shell mud crabs indoors, comprising the following steps:

[0054] (1) Selection of breeding pools

[0055] The indoor cement pool is used as the cultivation pool, the pH of the pool water is 8.6, the salinity is 7‰, the water depth is 60cm, and the dissolved oxygen is ≥5g / m 3 , the water temperature is 25°C, ammonia nitrogen ≤ 0.4mg / L, hydrogen sulfide ≤ 0.1 mg / L, and the breeding tank is equipped with a breeding box, the number of which is 6 / m 2 The scale rests on a raft frame.

[0056] (2) Selection of breeding crabs

[0057] Scylla serrata adult crabs weighing ≥200g are selected as breeding crabs, and the breeding crabs are required to have hard shells, blue color, complete appendages, no injuries, sensitive responses, and strong vitality.

[0058] (3) Disinfection of the cultivation pool

[0059] Sprinkle quicklime of 320ppm in the cultivation pond to disinfect the cultivation pond for 24 hours. After disinfection, rinse twice...

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PUM

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Abstract

The invention discloses a method for raising soft-shell scylla serrata indoors, solving the problems that a method for raising the soft-shell scylla serrata, of the prior art, is great in labor intensity, unbeneficial to unshelling the soft-shell scylla serrata, high in death rate of the soft-shell scylla serrata and low in weight gain rate. The method comprises the following steps of (1) selecting a raising pond; (2) selecting the scylla serrata to be raised; (3) sterilizing the raising pond; (4) putting the scylla serrata to be raised into the pond; (5) raising the soft-shell scylla serrata. According to the method for raising the soft-shell scylla serrata indoors provided by the invention, the steps are simple; the labor intensity can be decreased greatly; the scale production is applicable; as the raising conditions and the compound feed are optimally improved, the scylla serrata can become fatter and heavier fast; with the accumulation of sufficient nutrient substances, the unshelling of the scylla serrata is accelerated, the survival rate is improved, and the period of raising the soft-shell scylla serrata is shortened; moreover, the survival rate of the soft-shell scylla serrata is high, the weight gain rate is high and the raising benefits are favorably improved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for indoor cultivation of soft-shell mud crabs. Background technique [0002] Scylla serrata, referred to as blue crab, has the characteristics of fast growth, large individual, strong adaptability and disease resistance, easy transportation, delicious meat, rich nutrition, and good breeding benefits. It is very popular among domestic and foreign producers and consumers. Favored, it is one of the important marine economic farming crabs in my country. [0003] Soft-shell Scylla serrata refers to the freshly shelled Scylla serrata. The soft-shell Scylla serrata does not need to be peeled when eating, but can be eaten with the shell, which is more convenient and hygienic to eat. It not only retains the flavor of the original crab, And more nutrients. The current soft-shell mud crab is favored by consumers at home and abroad, and the supply of products is in short suppl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00A23K1/18A23K1/10A23K1/14A23K1/16
CPCY02A40/81Y02P60/87
Inventor 付万冬廖妙飞王维伦郑斌钟明杰相兴伟
Owner ZHEJIANG MARINE DEV RES INST
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