Fish and shrimp mixing aquaculture method

Abstract

The invention relates to a fish and shrimp mixing aquaculture method, and belongs to the technical field of fish and shrimp aquaculture. The fish and shrimp mixing aquaculture method can effectively improve the survival rate of shrimp larvae, shorten the input amount of the shrimp larvae, and can reduce the cost of the shrimp larvae. The technical scheme of the invention includes the following steps: a, infrastructure preparation: with a 20 mu of soil pool as a standard, a 80-mesh bolting cloth is used to surround a 1 mu of small pool, or a bulldozer is used to establish an about 1 mu of soil pool; and oxygen supply facilities such as different air blowers are arranged according to the size of a middle stage cultivation water surface; b, shrimp larvae standardization breeding; c, basic feed input and feeding; e, shrimp larvae fishing: when the specification of prawns reaches 5 cm after thrice standardization breeding, gates of a net and the small pool are opened, the shrimp larvae are placed to a large pool to be cultured; and f, adult shrimp cultivation and harvesting: high quality feed is selected in later prawn cultivation with prawn compound feed as a main component, and the prawn can be harvested in June. The fish and shrimp mixing aquaculture method can be widely used for fish and shrimp mixing aquaculture.

Description

technical field [0001] The invention relates to a fish and shrimp polyculture method, which belongs to the technical field of fish and shrimp cultivation. Background technique [0002] Since 2011, due to various factors such as regional restrictions (low salinity, poor water source), the shrimp farming industry in the Chaoshan area (400,000 mu) has been plagued by high input and low output. The return of high investment in raising high profits is beyond the reach of farmers in the Chaoshan area. Most farmers (Chaonan District, Shantou City, Chenghai District, Chaozhou City, and Niutianyang District, Jieyang City) have begun to increase the stocking density of the four major fish. To reduce the risk of shrimp farming, many farmers even rent out the pond mouth directly and are forced to go out to work. According to market research (data provided by 227 farmers), the survival rate of prawn farming in Chaoshan area is only 10%. catty. [0003] The deterioration of water resou...

AI Technical Summary

Problems solved by technology

[0003] The deterioration of water resources in the Chaoshan area has intensified, and the quality of soil seedlings has deteriorated. At the same time, farmers have been choosing low-quality feed, which makes this fish and shrimp polyculture model unsustainable.

The survival rate of prawn farming is low, and farmers continue to increase the amount of seedlings each year, which increases the cost of seedlings; in terms of feed selection, farmers like to choose low-priced, low-quality prawn compound feed, and some farmers even use fish and shrimp all year round. Mixed cultures are used for breeding, resulting in small shrimp size and low yield; the water environment is deteriorating, and the investment in animal protection products is increasing year by year

The previous model of prawn breeding and releasing seedlings is no longer applicable to the current farming market, and it is urgent to find a breeding method that improves the survival rate of seedlings and produces large shrimp