High-pressure oxygen-enrichment breeding box for blue crabs

Abstract

The invention relates to a high-pressure oxygen-enrichment breeding box for blue crabs and discloses a breeding box which promotes the growth of blue crabs by carrying out regional breeding on crab larvae through region segmentation in a closed breeding box and by oxygenating the closed breeding box to increase the pressure intensity of water in the box and form a high-pressure oxygen-enrichment environment. The breeding box is characterized in that a breeding frame is placed on a bottom box, the junction of the breeding frame and the bottom box is arranged to be a slope, and the height of thebottom box is gradually increased from one side to the other side; a water inlet pipe is arrange at one side of the breeding frame and located at the lowest position, the water inlet pipe is providedwith multiple branch pipes through extension, and the branch pipes are communicated with the breeding frame separately; a water return pipe is arranged at one side of the breeding frame, located overthe water inlet pipe and provided with multiple branch pipes through extension, the branch pipes are communicated with the breeding frame separately, the number of branch pipes of the water return pipe is identical to that of branch pipes of the water inlet pipe, and the diameter of the branch pipes of the water return pipe is a half that of the water return pipe.

Description

technical field [0001] The invention relates to a high-pressure oxygen-enriched breeding box for Portunus trituberculatus, which relates to a breeding box for improving the survival rate of crab seedlings during breeding of Portunus trituberculatus, and belongs to the field of aquaculture. In particular, it relates to a culture box for cultivating crab seedlings in different areas by dividing the area in the airtight culture box, and at the same time filling the airtight culture box to increase the pressure of the water body in the box, forming a high-pressure oxygen-enriched environment, and promoting the growth of swimming crabs. . Background technique [0002] At present, Portunus trituberculatus is the main economic aquatic product cultured in coastal areas of our country. Because there are three verrucous protrusions on the crab shell, it is called Portunus trituberculatus. Due to seawater pollution and overfishing, the production of wild Portunus trituberculatus has de...

AI Technical Summary

Problems solved by technology

The breeding platform of the utility model evenly arranges a number of concealed objects, and uses the trapping effect of the concealed objects on swimming crabs and the field protection characteristics of swimming crabs to form relatively independent fields, and limits the range of activities of swimming crabs in the molting stage. In their respective fields and surrounding areas, use the swimming crab activity area (deep groove) and swimming crab baiting area (baiting platform) to lure swimming crabs to reduce the invasion of swimming crabs during the molting period. The device guides swimming crabs, Avoid killing each other, but its water quality and oxygen content are low, which cannot promote the growth of swimming crabs in an environment with a certain water pressure, and wild swimming crabs are located at different depths in the ocean in winter and summer, that is, the pressure environment is different, but The pressure of the existing device is the same, without any changes

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