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Breeding prospects Procambarus clarkii has strong adaptability to the environment, less disease, low oxygen tolerance, can grow and reproduce in ponds, rivers, lakes, rice fields, swamps and other water bodies, and can leave water or burrow for a long time. The adverse environment has strong tolerance, convenient transportation, and high survival rate. This is unmatched by other shrimps. At the same time, the Procambarus clarkii seedlings are easy to breed, can be self-bred and self-bred, without complicated equipment, simple technology, easy to feed, suitable for artificial breeding. The average pond intensive production is 400 kg per mu and the profit is more than 1,600 yuan.
Market Prospect Currently, the artificial breeding of Procambarus clarkii is less, mainly relying on natural fishing, and its natural resources are far from satisfying the consumption demands of the international and domestic markets. The European and American countries are the main consumers of crawfish. In the United States, the shrimp is not only an important food shrimp but also an important bait for fishing. The annual consumption is 6 to 80,000 tons and the self-sufficiency is less than 1/3. The European Union and the United States import 20,000 tons of crawfish from China each year. Sweden is also a hot consumer of crawfish. Each year in Sweden, a three-week crayfish festival is held. The whole country not only eats crawfish, but also draws crayfish patterns on tableware and clothes. The situation is very grand. Sweden imports Procambarus angling 50,000 to 100,000 tons each year. Western European markets consume 60-80,000 tons of crawfish a year, while self-sufficiency in Western Europe accounts for only 20% of total consumption.
In recent years, domestic consumption of Procambarus clarkii has soared and it has become a home-cooked meal for most families in both urban and rural areas. In Wuhan, Nanjing, Shanghai, Changzhou, Wuxi, Suzhou, Huai'an, Hefei and other large and medium-sized cities, the annual consumption is more than 10,000 tons. In these large and medium-sized cities, the sales of Procambarus clarkii in restaurants and food stalls in the city at night totaled about 15,000 kilograms. According to relevant information, there are more than 30 restaurants and stalls in Hefei that can sell 150 kilograms of crawfish per night; more than 100 stores sell 50 kilograms per night; and there are numerous stalls selling 10 to 20 kilograms per night. . From June to September every year in Nanjing, daily consumption of crayfish amounts to 70-80 tons. Judging from the current level of consumption, there is a huge gap between domestic and foreign markets for crawfish, and the development of artificial breeding has a lot of money.
Processing Prospects The raw Procambarus clarkii is delicious in flesh and nutritious, with a protein content of 16% to 20%. The dry shrimp protein content is as high as 50% or more, which is higher than the average fish and exceeds the protein content of the egg. The content of zinc, iodine, selenium and other trace elements in shrimp meat is also higher than other foods, and the muscle fiber is delicate and easy to digest and absorb. Not only that, the meat rate of this shrimp is about 20%. It can process shrimps and shrimp tails, and industrial raw materials such as chitin, chitin, and chitosan extracted from shells are widely used in agriculture, food, medicine, and tobacco. In areas such as papermaking, printing and dyeing, and daily chemicals, there is great potential for processing value-added. Continued (Author: Li Yuanjiang City Bureau of Fisheries Liu Furong)
Crayfish, scientific name Procambarus clarkii, also known as crawfish crayfish, red marsh crawfish, belongs to the arthropods, crustaceans, Decapoda, crawfish suborder, Acinaraceae, Procambarus. Originating in North America, the United States introduced Japan from the United States in 1918, and from Japan in 1929, it is mainly distributed in the middle and lower reaches of the Yangtze River. In recent years, the shrimp market has been hot, prices are rising, supply is in short supply, and the development prospects are broad.