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Fish-grazing grass-controlling type river crab aquaculture pond water quality control device and method

A control device and fish husbandry technology, applied in fish farming, animal husbandry, application and other directions, can solve the problems of high construction cost, high site requirements, unfavorable promotion, etc., and achieve the effects of reliable operation, lush aquatic plants, and excellent growth environment.

Pending Publication Date: 2021-11-16
FRESHWATER FISHERIES RES INST OF SHANDONG PROVINCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device can conveniently trim submerged plants, but the invention needs to build two submerged partition walls and plant submerged plants between the submerged partition walls, which requires high site requirements and high construction costs, which is not conducive to popularization

Method used

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  • Fish-grazing grass-controlling type river crab aquaculture pond water quality control device and method
  • Fish-grazing grass-controlling type river crab aquaculture pond water quality control device and method
  • Fish-grazing grass-controlling type river crab aquaculture pond water quality control device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0035] Implementation mode one: if Figure 1-3 As shown, the water quality control device for fish and grass control type river crab culture ponds in Benmu includes a floating raft 1 and a net cage 2, and the net cage 2 is fixed on the floating raft 1, and is characterized in that: the floating raft 1 is a rectangular floating raft, Its interior is hollow, and the rectangular floating raft includes a rectangular grille frame 11, handrails 12 and at least four floating tanks 13, and the above-mentioned floating tanks 13 are evenly arranged below the rectangular grille frame 11, and the handrails 12 include fences 121 and uprights 122, the lower end of its column 122 is fixed on the outer edge of the rectangular grid frame 11, and the net box 2 includes side nets 21, bottom frames 22 and bottom nets 23 around them, and the lower edges of the side nets 21 and bottom nets 23 four sides are all fixed On the bottom frame 22, three or four twisted ropes 3 are evenly arranged on the b...

Embodiment approach 2

[0037] Implementation mode two: if Figure 4-6 As shown, there are four twisted tubes 4 and twisted ropes 3 each, and inner columns 15 are respectively arranged at different positions on the inner edge of the rectangular grid frame 11, and a micro drive motor is respectively fixed on the four inner columns 15. 16. The four skeins 4 are respectively fixed on the inner column 15 through the bearing housing 9 and the bearing 10, and can be driven by a micro-drive motor 16, and the four micro-drive motors 16 are synchronously linked.

[0038] Such as Figure 4 As shown, the net cage 2 is also provided with a cover net 24, and the peripheral edge of the net cage 24 is detachably fixed on the upper edge of the side net 21 of the net cage 2, and the remaining structures are as shown in Embodiment 1, omitted.

[0039] The water quality control method of the fish-herding and grass-controlling type river crab culture pond of the present invention comprises the following steps:

[0040...

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Abstract

The invention relates to a fish-grazing grass-controlling type river crab aquaculture pond water quality control device and method. In order to fill the blank in the prior art, the water quality control device comprises a floating raft and a net cage, the net cage is fixed to the floating raft, the floating raft is rectangular and comprises a rectangular grid plate frame, a handrail and at least four floating boxes, the handrail comprises a fence and stand columns, the net cage comprises side nets on the periphery, a bottom frame and a bottom net, three or four twisting ropes are evenly arranged on the bottom frame, twisting drums are arranged on the fence or the stand columns, the upper ends of the twisting ropes are fixed to and wound on the twisting drums, the bottom frame and the bottom net can be lifted or released by rotating the twisting drums, grass carps with the weight of more than 250 g are bred in the net cage in a stocking mode, meshes of the side nets and the bottom net are prismatic meshes, the side length of the prismatic meshes is 1.5-2.0 cm, and bamboo spars are arranged. The water quality control device is simple in structure and reliable in operation, submerged plants are fully utilized, the water quality of the matched pond is fresh, dissolved oxygen is rich, aquatic plants are flourishing, and an excellent growth environment is provided for the river crabs.

Description

technical field [0001] The invention relates to a water quality control device and method for fish-herding and grass-controlling river crab breeding ponds. Background technique [0002] The scientific name of river crab is Chinese mitten crab (Eriocheir sinensis), also known as crab, hairy crab, etc., and it is a migratory crustacean. With the development of my country's economy and society and the continuous improvement of people's living standards, river crabs are more and more popular as high-value-added, high-nutrition, and unique-quality river crabs. Therefore, river crabs have become one of the important breeds in my country. River crabs like to live in slightly alkaline or neutral waters with fresh water, rich dissolved oxygen, lush aquatic plants, and rich bait (such as grassy lakes, rivers, etc.). The nature of eating and fighting. Therefore, there are sayings such as "raise grass first when raising crabs", "if you want crabs to grow well, aquatic plants in crab p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K63/00A01K61/10A01K61/59A01K61/60A01K61/65
CPCA01K63/003A01K61/60A01K61/65A01K61/10A01K61/59Y02A40/81
Inventor 王志忠朱永安赵金山和飞张金路李壮许国晶巩俊霞陈秀丽杜兴华张明磊卢红
Owner FRESHWATER FISHERIES RES INST OF SHANDONG PROVINCE
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