Ecological breeding method of scylla serrata

Abstract

The invention discloses an ecological breeding method of scylla serrata. At present, main scylla serrata breeding modes include a pond type, an enclosure type and a net cage type, and in the breeding modes, scylla serrata growing together can fight and scramble for food with pincers to lead to mutual killing and injuries, so that breeding survival rate is affected. The method adopts the mode that inner cages are sleeved by an outer cage and one scylla serrata is bred in each inner cage, and includes the technical steps of (1) breeding net cage selection; (2) net cage fixing; (3) scylla serrata breeding; and (4) scylla serrata catching. Since only one scylla serrata is bred in single inner cage, mutual pincers fight of the scylla serrata is avoided, the survival rate is increased, and the scylla serrata growing in the inner cages can eat submarine plankton and small animals on mud flats along with seawater tide rising and falling, and further nutritional requirements of the scylla serrata are guaranteed. The ecological breeding method is capable of increasing breeding density, 1000-1500 scylla serrata can be bred on per mu of mud flat, 400-500 kilograms of scylla serrata / per mu are gained, and accordingly mud flat resources are utilized to the greatest extent.

Description

technical field [0001] The invention relates to an ecological breeding method for blue crabs, which belongs to the technical field of marine culture. Background technique [0002] Scylla serrata ( Scylla serrata) Commonly known as blue crabs and red sturgeons, they are distributed in southern China, Japan, India, Africa and other tropical and subtropical harbors and coastal mangrove swamps. In my country, they are mainly produced in Zhejiang, Fujian, Taiwan, Guangdong and Guangxi coasts south of the Yangtze River estuary. Scylla serrata has delicious meat, unique flavor, rich nutrition, and can also be used as medicine. It is a famous edible crab with high economic value and great demand in domestic and foreign markets. The main cultured species of coastal culture. With the maturation of breeding technology, the income from breeding mud crabs has become the main source of income for the coastal farming industry. At present, there are mainly several ways to breed mud crabs, ...

AI Technical Summary

Problems solved by technology

The above-mentioned three breeding methods adopt the feed feeding method, which changes the living habits of the blue crabs, and the food they prey on changes accordingly, which naturally affects the growth of the blue crabs, as well as the protein composition and content of the meat, and the taste is also affected. impact, the freshness of blue crab meat will be greatly reduced, which is the inherent deficiency of the above three farming methods

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