Artificial cultivation brooding and incubating method for scylla paramamosain

A technology for artificially cultivating and simulating mud crabs, which is applied in the fields of climate change adaptation, fish farming, and application, can solve problems such as difficulty in ensuring quality and quantity, and achieve the effects of easy control, high hatchability, and health promotion.

Inactive Publication Date: 2012-11-14
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

So far, artificially cultivated seedlings mainly come from natural seedlings in sea areas. Due to the limitation of natural conditions in sea areas, it is difficult to guarantee their quality and quantity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Breeding pond preparation for crabs:

[0023] Choose a semi-buried cement pond in the workshop as a breeding pond for crabs, with an area of ​​15m 2 , length / width / depth are 5m / 3m / 1.8m respectively. Lay 15cm thick fine sand at the bottom, and the area of ​​sand accounts for 4 / 5 at the bottom of the whole cultivation pond. Bury 15 air heads in the sand, with an average of 1 per square meter, to maintain sufficient oxygen. Inject fresh seawater with a water level of 60cm, disinfect with bleach for 15 hours, and reduce with sodium thiosulfate. Daily measurement keeps the salinity of seawater at 28~32‰. Cover the top of the cultivation pond with a layer of black plastic cloth to keep the darker light in the cultivation pond.

[0024] (2) Selection and entry of species of crabs:

[0025] Crabs need to meet the following three criteria: First, if the female crab has been mated, squeeze the top of the belly button with your hands, and you can see milky white or yellow...

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Abstract

The invention relates to an artificial cultivation brooding and incubating method for scylla paramamosain. The method comprises four steps of preparation of a seeding crab cultivation pond, selection of seeding crabs and placement in the pond, enhanced cultivation of the seeding crabs and cultivation of brood crabs. The method has the advantages of large brood amount, high incubation rate, strong larva vigor, safety and easiness in handle. The method can be quickly understood and handled by farmers, is fit for artificial breeding of offspring seeds at a large scale, and is expected to facilitate health and fast development of the artificial breeding work of scylla paramamosain domestically.

Description

technical field [0001] The invention belongs to the field of cultivating mud crabs, in particular to a method for artificially cultivating eggs and hatching mud crabs. Background technique [0002] Scylla paramamosain belongs to Arthropoda, Crustacea, Decapoda, Portunidae, and Scylla. It is mainly distributed in the Yangtze River Estuary and beyond in my country. The south coastal waters are my country's important marine fishery resources and seawater cultured crabs. [0003] Pseudomonas blue crab has the advantages of large size, fast growth, delicious meat, etc., and is favored by consumers. In recent years, the annual output of artificial breeding of blue crabs in my country has been stable at more than 100,000 tons, maintaining a stable development momentum. So far, artificially cultivated seedlings mainly come from natural seedlings in sea areas. Due to the limitation of natural conditions in sea areas, it is difficult to guarantee their quality and quantity. The cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 马洪雨乔振国马凌波马春艳
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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