Rice field three-dimensional crab culture system

Abstract

The invention discloses a rice field three-dimensional crab culture system. A crab culture rack is obliquely arranged in a culture pond, conveying devices are respectively arranged at two longitudinalends of the crab culture rack, a high-low inclined channel is arranged in the culture pond corresponding to the crab culture rack, the channel is arranged at a lower end of the top of the crab culture rack, an upright post is arranged on the channel, a cross rod is vertically arranged at the top of the upright post, an electromagnetic device is arranged at a free end of the cross rod, a magnet iscorrespondingly arranged on a crab culture box, a spraying and washing device is arranged on the upright post positioned below the electromagnetic device, a spraying port of the spraying and washingdevice is arranged at one side of the crab culture box; a rice planting base is also arranged in the culture pond; and the bottom of the upright post is provided with a transverse moving device. By the adoption of the rice field three-dimensional crab culture system, an industrial mass crab cultivation is realized, a symbiotic system of crab cultivation and rice planting is realized, the growth environment of rice and crab is effectively improved, and good practicability is realized.

Description

technical field [0001] The invention belongs to the technical field of crab cultivation, and in particular relates to a three-dimensional crab cultivation system in paddy fields. Background technique [0002] Rice field farming is an ecological farming model that performs a virtuous cycle in the rice field ecosystem based on the principles of ecological economics. Ni Dashu, a well-known aquatic biology expert, once pointed out that paddy farming can not only harvest a considerable amount of aquatic products under the conditions of saving labor, labor and bait, but also increase rice income by more than 10% without increasing investment. However, when rice fields are cultured, when the oxygen content in the water is low, it is not conducive to the growth of shrimp and crabs. Traditional paddy farming cannot carry out large-scale farming, and the breeding density is greatly limited, which does not meet the needs of industrial production. [0003] In the middle and later stag...

AI Technical Summary

Problems solved by technology

However, when rice fields are cultured, when the oxygen content in the water is low, it is not conducive to the growth of shrimp and crabs.

Traditional paddy farming cannot carry out large-scale farming, and the breeding density is greatly limited, which does not meet the needs of industrial production

[0003] In the middle and late stages of the crab breeding process, due to the increase in the internal capacity of the pond, including the increase in feed and crab excrement, the oxygen content in the breeding pond is low, which can easily lead to an increase in the mortality of crabs.

In order to increase the amount of dissolved oxygen in the breeding pond and reduce the mortality of crabs in the breeding process, waterwheel aerators and submersible aerators are widely used. Such aerators are not only expensive, cumbersome to install and use, and have a low degree of automation. , and it can only solve the dissolved oxygen on the surface of the water body, and has no obvious effect on increasing the dissolved oxygen content at the bottom of the aquaculture pond, and cannot fully and completely exchange dissolved oxygen for the upper and lower water bodies

Images