Salmonidae Fish Controllable Temperature Incubation and Breeding Device

Abstract

The invention discloses a device for hatching and culturing Salmonidae fishes with a controllable temperature, which relates to a fish hatching and culturing device and aims at solving the problems that the hatching rate and survival rate of Salmonidae fishes are low due to the poorer culturing environment and the uncontrollable culturing environment when hatching floating larva and culturing newly hatched young fries in the prior art. The device is characterized in that a closed separation zone, a water storage tank and a refrigeration zone are arranged on the upper part in an aquarium; the closed separation zone is communicated with one end of a water return pipe; a filter layer, a heating rod, a water pump and an aerating pore plate are arranged in the water storage tank; the other endof the water return pipe is communicated with the water storage tank and is arranged above the filter layer; the aerating pore pipe is communicated with an oxygen pump which is arranged outside the aquarium; the water pump is communicated with an ultraviolet light sterilizing device which is arranged outside the water storage tank through a pipeline; the ultraviolet light sterilizing device is communicated with the refrigeration zone through the pipeline; a temperature sensor is arranged in the refrigeration zone; the refrigeration zone is communicated with the closed separation zone through the pipeline; and the refrigeration zone is communicated with a compressor which is arranged outside the aquarium through an expansion valve. The device can be used for hatching and culturing the Salmonidae fishes.

Description

technical field [0001] The invention relates to a fish hatching and breeding device. Background technique [0002] The cultivation of larvae and juveniles of salmonid fish such as rainbow trout is an important part of the fry cultivation process. In recent years, due to the continuous expansion of the breeding area and breeding density of salmonid fish in my country, environmental factors such as water quality, dissolved oxygen and ammonia nitrogen have been caused. deteriorating. At the same time, some other environmental factors such as temperature and water pollutants are also under the condition of uncontrollable fluctuation. Under the combined effect of the above factors, the hatching rate and survival rate of rainbow trout are often low (the survival rate is generally about 60%). In order to improve its survival rate, the control and management of the breeding environment should be strengthened in the incubation stage of hatching and floating larvae and newly hatched ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a temperature-controllable hatching and culturing device for salmonid fish, to solve the current problem of salmon hatching due to the poor breeding environment and uncontrollable breeding environment when hatching floating larvae and cultivating newly hatched juveniles. The problem of low rate and survival rate

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