Hairy crab three-dimensional breeding method

Abstract

The invention discloses a hairy crab three-dimensional breeding method. According to selection of juvenile crabs needed by the method, the age of the juvenile crabs should reach 6 days or above, desalination should be conducted for 4 days or above, and the salinity should be 3 or below; the body is healthy and strong, has a hard shell feeling when being held by hands, has strong vitality and is golden yellow; and individuals are uniform in size, and the specification is about 18*104 / kg. Three-dimensional water tank breeding is adopted in the method, fine sand, sludge and aquatic plants are utilized in a water tank to create a good living environment, the aquatic plants are beneficial to foraging, habitat, concealment, molting and growth of river crabs, meanwhile, a large amount of food isprovided for the crabs, due to plankton in water, mutual food seizing of the crabs can be reduced, and the survival rate of the crabs can be improved. Meanwhile, quick lime is added into water, pesticide is sprayed to the whole area, the morbidity of the crabs is reduced, the quality of the crabs is improved, lamplight can be installed in the water tank according to the catching method, gatheringcatching can be achieved, and therefore the catching survival rate of the crabs can be increased.

Description

technical field [0001] The invention belongs to the technical field of related aquaculture, and in particular relates to a three-dimensional cultivation method of hairy crabs. Background technique [0002] Hairy crab is a kind of river crab, and the scientific name of river crab is Chinese mitten crab. From the Liaohe River in the north to the Pearl River in the north of my country, the long coastline is widely distributed. Among them, the hairy crabs from Taihu Lake, Gaoyou Lake, and Yangcheng Lake in the lower reaches of the Yangtze River are the top grade. The Yangtze River system has the largest output and the most delicious taste. Generally speaking, hairy crabs specifically refer to Chinese mitten crabs from the Yangtze River system. Crab meat is tender, delicious, and rich in nutrition. The protein content is several times higher than that of pork and fish, and the content of riboflavin, calcium, phosphorus, iron and vitamin A is also higher. At the same time, it al...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a three-dimensional culture method for hairy crabs, so as to solve the problems of low survival rate and low yield of crabs in the traditional river pond culture proposed in the above-mentioned background technology.