Polyculture method of river crabs, crayfish and mandarin fish

Abstract

The invention discloses a polyculture method of river crabs, crayfish and mandarin fish. The polyculture method of the river crabs, the crayfish and the mandarin fish comprises the following steps of building a pool, cleaning and disinfecting the pool, planting aquatic plants, putting snails into the pool, disinfecting seeds, putting the seeds into the pool, feeding fodder, regulating and controlling the water quality of the pool, and catching products. According to the polyculture method of the river crabs, the crayfish and the mandarin fish, which is provided by the invention, the effective control on the kinds, the total quantity and the specification of cultivation can be realized, the cultivation cost is reduced, and the economical benefit of the cultivation is increased.

Description

technical field [0001] The invention relates to a method for cultivating river crabs, in particular to a method for polyculture of river crabs, crayfish and mandarin fish. Background technique [0002] The scientific name of the river crab is Eriocheir Sinensis H.Milne Edwards, which is one of the high-quality aquatic economic species in my country. Since the 1980s, my country has extensively carried out artificial breeding and breeding of river crabs, and formed an industrialized production system. With the expansion of breeding scale and the improvement of consumption level, the river crab farming industry has changed from simply pursuing an increase in output and quantity to focusing on improving efficiency and quality, and the farming form is also changing from labor-intensive to technology-based and knowledge-based. The transformation, the technology is not in place, and the following problems generally exist: First, due to the unreasonable ratio of fish species ...

AI Technical Summary

Problems solved by technology

With the expansion of breeding scale and the improvement of consumption level, the river crab farming industry has changed from simply pursuing an increase in output and quantity to focusing on improving efficiency and quality, and the farming form is also changing from labor-intensive to technology-based and knowledge-based. The transformation, the technology is not in place, and the following problems generally exist: First, due to the unreasonable ratio of fish species and quantities, different fish species compete for food and kill each other, increasing natural elimination and mortality, and the commercial fish on the market is greatly discounted. ; Second, due to the inability to effectively control the production cycle, the specifications of commercial fish on the market are not uniform