Feed recovery culture net cage and recovery method thereof

Abstract

The invention belongs to the field of net cage culture, and particularly relates to a feed recovery culture net cage and a recovery method thereof. The feed recovery culture net cage comprises a floating plate frame fixedly arranged on a net cage; the bottom of the net cage is provided with a cage bottom; the cage bottom comprises a fixed plate and movable battens arranged at intervals; a plurality of elastic supporting mechanisms are arranged on the lower sides of the movable battens; a plurality of guide pipes are arranged on the right side of the box bottom; the other ends of the multiple guide pipes are fixedly connected with recovery pipes; a control valve is arranged at the lower end of each recovery pipe; a sundries storage chamber is arranged at the upper end of each recovery pipeand arranged on the side face of the net cage; and a feeding machine used for feeding and a pump machine used for feed recovery are arranged on the upper side of the floating plate frame. Residual feed in the net cage can be recovered, so that the water quality is prevented from being influenced.

Description

technical field [0001] The invention belongs to the field of agricultural technology, and in particular relates to a feed recovery breeding cage and a recovery method thereof. Background technique [0002] Cage culture originated in Cambodia and other Southeast Asian countries at the end of the 19th century, and then spread to all parts of the world. Due to the characteristics of low investment, high output, maneuverability, and quick results, cage culture has flourished in lakes, reservoirs and even oceans across the country in just a few decades. As the main body of cage farming, some Make the frame of hexahedron, and the frame of this hexahedron can be made of metal, wood or moso bamboo. After this overall frame is installed, it has a strong ability to resist wind and waves in water, such as lack of oxygen in the box, it is very convenient to move the net box as a whole. It is also very convenient to use sun drying nets to eliminate attachments, but it is troublesome to...

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Problems solved by technology

They are the decisive factors of the water quality of the water body. In the water body of cage culture, the remaining feed increases the suspended solids in the water, reduces the transparency of the water body, and reduces the oxygen produced by the photosynthesis of phytoplankton, which is harmful to fish respiration and organic nutrients in the cage. The decomposition of organic matter is extremely unfavorable. The increase of organic matter content will increase the chemical oxygen demand in water. Part of the organic matter in the water body will not be completely oxidized, producing toxic gases such as H2S and NH3, which will endanger the health of farmed fish, and in severe cases will cause the death of farmed fish. A large number of deaths, but there is no good solution for the recovery of the remaining feed in the cage

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