Culture method for green crabs

Abstract

The invention provides a culture method for green crabs. The culture method includes the following steps: step 1, selecting the juvenile crab feeding time and the harvesting time for the first batch,as well as the juvenile crab feeding time and the harvesting time for the second batch; step 3, regulating the quality of water in a crab pond after pond cleaning and before breeding, and filtering the culture water by sand; step 4, putting juvenile crabs into a cuboid meshed cage, and putting the cage into the crab pond; step 5, feeding baits to the green crabs twice a day (evening and morning);step 6, spraying micro-ecological water quality improvers every other half a month to maintain the water quality. The culture method has the advantages that mutual killing and escape in the culture process of the green crabs can be avoided, the culture density, survival rate and yield per unit of the green crabs can be remarkably increased, and a culture device and the culture method for the greencrabs can be applied to real three-dimensional water body space utilization and three-dimensional culture.

Description

technical field [0001] The invention relates to a method for cultivating mud crabs, in particular to a method for cultivating mud crabs. Background technique [0002] The blue crab is an animal. The carapace is oval-shaped, flat and hairless, with well-developed head and chest, strong claws, and hind feet shaped like oysters, so they are called oysters. The width of the carapace is about 1.5 times the length, the back is raised and smooth, and there are obvious "H"-shaped indentations on the surface of the carapace; the forehead has 4 protruding triangular teeth, the size and spacing of the teeth are roughly equal, and the front side edge With 9 protruding triangular teeth of similar size. Because of its huge size, fast growth, delicious meat, and rich nutrition, it is regarded as a precious seafood in modern and modern times, and it is also an important marine economic species for artificial breeding in coastal areas. Most of the existing breeding methods only provide on...

AI Technical Summary

Problems solved by technology

Most of the existing breeding methods only provide one-year breeding technology, and the economic benefits are low. The mud crab farming technology cannot effectively avoid the escape of mud crabs and the mutual cannibalism between mud crabs. The breeding density is low and the survival rate is low. , the output per unit water body is low, and three-dimensional farming cannot be realized