Stair-type prawn breeding net

Abstract

The invention relates to the field of shrimp breeding equipment, in particular to a stair-type prawn breeding net. The stair-type prawn breeding net comprises a stair-type net box and a ceiling, three sub-net boxes with the horizontal positions sequentially lowered are arranged in the stair-type net box, each sub-net box comprises a round inner box body and a square outer net box body, each round inner net box body is sleeved with the corresponding square outer net box body, a blow-off pipe is arranged at the bottom of each sub-net box, a movable partition plate is arranged between every two adjacent sub-net boxes, the upper portion and the lower portion of the side wall of each round inner net box body are each provided with a sliding rail, the movable partition plates are installed in the sliding rails, a guiding plate is arranged on openings of every two adjacent inner net box bodies, one end of each guiding plate is connected with the bottom of the corresponding round inner net box body higher in relative position, and the other end of each guiding plate is connected with the top of the corresponding round inner net box body lower in relative position; the ceiling is fixed to the upper portion of the stair-type net box. The stair-type prawn breeding net is suitable for growth and activity of prawns, the survival rate of young shrimps is high, and waste in a breeding pond can be conveniently cleaned away.

Description

technical field [0001] The invention relates to the field of shrimp farming equipment, in particular to a stepped shrimp farming net. Background technique [0002] Prawns, scientific name Oriental prawns, also known as Chinese prawns and tiger prawns. Shrimp can be divided into sedentary type (such as Japanese prawn, broad groove prawn, European prawn, etc.) and migratory type (such as Chinese prawn, Moji prawn, long-haired prawn). The former type lives in shallow coastal waters and often dives in the sandy bottom during the day , do not move in a large range; the latter type lives in the turbid waters along the estuary, and often moves and migrates in a large range. In order to improve the land utilization rate, most of the cages used in the current cage culture of prawns are rectangular or square; On the other hand, due to poor water mobility in the culture pond, it is not conducive to the growth and activity of prawns, and is not conducive to the collection and discharg...

AI Technical Summary

Problems solved by technology

In order to improve the land utilization rate, most of the cages used in the current cage culture of prawns are rectangular or square; On the other hand, due to the poor water mobility in the breeding pond, it is not conducive to the growth and activity of prawns, and is not conducive to the collection and discharge of suspended waste in the pond.

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