A kind of cultivation method of Portunus crab broodstock

A breeding method and technology of swimming crabs, which are applied in the breeding field of swimming crab parent crabs, can solve the problems affecting the breeding of parent crabs, affecting the survival rate of parent crabs, etc., and achieve the effects of constant temperature, prevention of death, and good palatability

Inactive Publication Date: 2016-03-23
北海市振发海洋产业科技有限公司
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AI Technical Summary

Problems solved by technology

At present, the breeding of Portunus crabs is mostly directly selecting parent crabs from nature, which is easy to bring in some parasites and infectious diseases, which not only affects the survival rate of parent crabs, but also affects the reproduction of parent crabs

Method used

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Embodiment Construction

[0023] The invention provides a method for cultivating swimming crab parent crabs, comprising:

[0024] Step 1. Select female crabs and male crabs with complete appendages weighing more than 100 g and without parasites in the body, appendages and gills as parent crabs. The female crabs are selected from Guangxi, the male crabs are selected from Fujian, and the female crabs and male crabs are selected from Guangxi. The ratio of the number of crabs is 4:1;

[0025] To set up a broodstock nursery:

[0026] The parent crab cultivation room includes: an air shower, a cultivation room and a spare cultivation room, the air shower communicates with the entrance of the cultivation room, a soundproof door is arranged at the entrance of the cultivation room, and the entrance of the cultivation room The wall is provided with a soundproof layer, and at least 3 soundproof windows are provided on the wall of the cultivation room, and a male crab pond, a female crab pond and a mating pond ar...

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Abstract

The invention discloses a parent swimming crab breeding method. The parent swimming crab breeding method comprises the steps of selecting healthy parent crabs and arranging a parent crab breeding room; adjusting the temperature of the breeding room; disinfecting the parent crabs; putting the parent crabs into the parent crab breeding room to be bred; disinfecting the parent crab breeding room for one time every day; breeding male crabs and female crabs for 20 days in a separated mode and then transferring the male crabs and female crabs to a copulation pond to be bred for 10-12 days till the female crabs are fertilized. By adopting the parent swimming crab breeding method, the parent crab survival rate is high, the parent crab physique is obviously strengthened, the fertilization rate of the female crabs in the parent crabs is improved, the fertilized ovum survival rate is improved, and the survival rate of young crabs developed from fertilized ovum is improved.

Description

technical field [0001] The invention relates to a method for cultivating crabs, in particular to a method for cultivating brood crabs of swimming crabs. Background technique [0002] Swimming crabs, also known as crabs, are commonly known as white crabs or blue crabs in some places. They are mainly distributed in Japan, North Korea, the Malay Islands, the Red Sea and most of the coasts of mainland China. Swimming crab is deeply loved by the people of our country because of its fast growth, large individual size and delicious meat taste, and has high economic value. At present, most of the breeding of Portunus crabs is to directly select parent crabs from nature, which is easy to bring in some parasites and infectious diseases, which not only affects the survival rate of parent crabs, but also affects the reproduction of parent crabs. Contents of the invention [0003] The present invention designs and develops a breeding method for swimming crab broodstock. [0004] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 谭雄亮
Owner 北海市振发海洋产业科技有限公司
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