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 grass carp pool, a duck pool and a river crab pool are arranged in the slope; the grass carp pool is used for breeding grass carps and changing the weak acidity of the water; in addition, faeces of the grass carps fall into the river crab pool through a water suction pipe, a flood control pipe and a flow guide pipe to provide certain nutrients for the growth of the river crabs; meanwhile, the stream is introduced; the stream supplements the fresh air when flowing through the grass carp pool to fall down into the river crab pool; the artificial oxygen supplementation is not needed; a great number of river crabs can be bred in the slope; faeces of ducks bred in the duck pool fall into the duck pool through drain holes formed in the bottom plate of a duck house; the nutrients are provided for duckweeds bred in the duck pool; the duckweeds flow into the next stage of the river crab pool through a duckweed pipe; the nutrients are provided for the river crabs; the PH of the river crab pool is controlled.

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

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