Demersal fish egg incubator

Abstract

The invention discloses a demersal fish egg incubator which comprises a closed fusiform incubation barrel. The portion, close to the bottom, of the inner side of the fusiform incubation barrel is provided with a lower conical flow guide part; the portion, close to the top, of the inner side of the fusiform incubation barrel is provided with an upper conical flow guide part. An oxygenation water spray pipe is arranged on the side face of the fusiform incubation barrel in a penetrating mode, and connected with the side face of the fusiform incubation barrel in a bearing fit mode. The working end of the oxygenation water spray pipe is connected with a water spraying port. The free end of the oxygenation water spray pipe is connected with a water pump in a sliding fit mode, and the water pump is provided with a water suction pipe arranged on the side face of the fusiform incubation barrel in a penetrating mode. The oxygenation water spray pipe is connected with a motor through a traction wheel and a belt. The demersal fish egg incubator has the advantages that oxygenation or sterilization can be conducted on surface layer water and bottom layer water as needed, fish eggs with problems can be disposed in emergency, and the incubation amount is large.

Description

technical field [0001] The invention relates to a super-intensive aquaculture equipment, in particular to a sinking fish egg incubator. Background technique [0002] During the hatching process of fertilized fish eggs, sinking fish eggs accumulate at the bottom of the water due to their large specific gravity, and they are squeezed against each other, which is very easy to cause damage. Low, high deformity rate of larvae and other problems. The existing hatching methods use hatching boxes or hatching tanks, etc., only relying on methods such as increasing the number of aeration stones and reducing the hatching density can not really solve the problem of fish egg accumulation. On the other hand, the hatching equipment and facilities are large in size and occupy a large area , high water consumption, complex operation, high difficulty, and low hatching efficiency greatly restrict the success rate of sinking fish eggs hatching. The commonly used incubator / cabinet in recent ye...

AI Technical Summary

Problems solved by technology

[0002] During the hatching process of fertilized fish eggs, sinking fish eggs accumulate at the bottom of the water due to their large specific gravity, and they are squeezed against each other, which is very easy to cause damage. Low, high deformity rate of larvae and other problems

The existing hatching methods use hatching boxes or hatching tanks, etc., only relying on methods such as increasing the number of aeration stones and reducing the hatching density can not really solve the problem of fish egg accumulation. On the other hand, the hatching equipment and facilities are large in size and occupy a large area , high water consumption, complex operation, high difficulty, low hatching efficiency, greatly restricting the success rate of sinking fish eggs hatching

The commonly used incubator / cabinet in recent years adopts the method of reducing the hatching density of fish eggs, which alleviates the problem of insufficient dissolved oxygen of fish eggs to a certain extent, but it is bulky, occupies a large area, is difficult to operate, and is expensive. Meet the needs of ordinary nursery farms

Existing technologies such as the Chinese utility model patent "A Submerged Fish Egg Upwelling Automatic Incubator", patent number 201220711934.2, this utility model discloses a sinking fish egg upwelling automatic incubator, which can solve the problem of sinking fish eggs in the prior art. Sexual fish eggs sink to the bottom of the water during the hatching process, causing accumulation and cannot obtain sufficient dissolved oxygen, making it difficult to hatch

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