Method for ecologically breeding river crabs in southern hilly land slope

Abstract

The invention provides a method for ecologically breeding river crabs in a southern hilly land slope, and relates to the field of aquaculture. The method comprises the following steps that a black carp pool and a river crab pool are built in the slope; the black carp pool and the river crab pool are arranged in a step shape; the river crab pool is positioned in a low position; the black carp pool is used for changing the weak acidity of the stream; faeces of black carps fall into the river crab pool through a water suction pipe, a flood control pipe and a flow guide pipe; certain nutrients are provided for the river crab growth; a chub is put in the river crab pool for controlling the density of planktonts in the river crab pool; meanwhile, the stream is also introduced into the highest stage of black carp pool; fresh air is supplemented when the stream falls down into the river crab pool; a great number of river crabs can be bred in the slope; meanwhile, the feed fed every day is prepared through a great number of practices; herba houttuyniae, longhairy antenoron herb, alfalfa, sculellaria barbata and crowndaisy chrysanthemum proportionally matched in the compound feed for the river crabs have the anti-inflammatory and sterilization effects; the river crabs can be prevented from catching saprolegniasis.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a method for ecologically cultivating river crabs on slopes in southern hilly areas. Background technique [0002] River crabs are also called "crabs" and "hair crabs". The carapace formed by the combination of the head and the chest is square and hard. There is a pair of eyes on the front of the body, and two pairs of very sharp crab teeth on the side. It often lives in caves on the mud banks of rivers, lakes and lakes. It is nocturnal and feeds on fish, shrimp, animal carcasses and grains. It often migrates every autumn. They go to the estuary where they go to the sea to lay eggs, and hatch from March to May of the next year. After developing into young crabs, the meat that goes back to the river is fresh and tender, and it is a popular food. [0003] The southern hilly areas are rich in water sources, but have less flat land. With the growth of China's population and the developmen...

AI Technical Summary

Problems solved by technology

[0003] The southern hilly areas are rich in water sources, but have less flat land. With the growth of China's population and the development of society, more and more flat land is used to build houses and factories. As the scope of land acquisition becomes wider and wider, agricultural land is gradually reduced. , the production range of river crabs is also gradually decreasing; therefore, it is imminent to provide a new farming method to produce high-quality river crabs to replace some of the original river crabs cultured in plain lakes

Images