Fry breeding device and method of lateolabrax japonicus

Abstract

The invention provides a fry breeding device and method of lateolabrax japonicus. The device comprises an oxygen supply motor, a turbine chamber, an air inlet grid, a turbine blade, a jet rod, an auger motor, an auger shaft, a sliding groove, a squeezing groove and a discharge port, wherein the turbine chamber is formed in the left side of a transverse rod, the upper side of the turbine chamber is provided with the oxygen supply motor, the front end face of the turbine chamber is provided with the air inlet grid, the inner portion of the turbine chamber is assembled with the turbine blade, and the lower side of the turbine chamber is connected with the jet rod. The fry breeding device and method of the lateolabrax japonicus solve the problem that an existing lateolabrax japonicus fry oxygen supply device is not even and effective enough in oxygen supply; the right side of the transverse rod is provided with the sliding groove, the upper side of the inner portion of the sliding groove is provided with the auger motor, the lower side of the auger motor is connected with the auger shaft, the lower side of the sliding groove is provided with the squeezing groove, and the left side of the squeezing groove is provided with the discharge port, so that the fry breeding device and method of the lateolabrax japonicus solve the problem that the digestion of lateolabrax japonicus fry is not facilitated due to the fact that original fry breeding feeding particles are larger. The fry breeding device and method of the lateolabrax japonicus has the advantages that the structure is reasonable, and the increase of the survival rate of the lateolabrax japonicus fry breeding is facilitated.

Description

technical field [0001] The invention relates to a perch seedling raising device and method, and belongs to the technical field of perch seedling raising. Background technique [0002] There are many kinds of fish in Chinese that can be called perch. Among them, there are four most common types: sea perch, whose scientific name is Japanese perch. Songjiang perch, also known as four-gill perch, belongs to the migratory fish that descends into the sea, and is the most famous. Largemouth bass, also known as California bass, is a new species introduced from the United States. Perch, also known as red perch and Wudaohei, is native to northern Xinjiang. Fish fry cultivation, also known as "Fat Pond". It means that the fry are raised for 20 to 25 days, and they grow to about 3 cm, which is called "summer flower". The success or failure of fry cultivation directly affects economic benefits. [0003] Due to the lack of effective cultivation devices for sea bass fry, the survival ...

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Problems solved by technology

[0003] Due to the lack of effective cultivation devices for sea bass fry, the survival rate of sea bass fry is greatly reduced. The main reason is that the fish fry oxygen supply device cannot evenly supply oxygen, which makes the water body nutrient distribution uneven. In addition, it is due to the lack of effective feeding. device, so that the perch cannot digest the fish feed with larger particles, resulting in the death of the fry. The existing equipment is inconvenient to effectively supply oxygen and feed to the perch fry. Now there is an urgent need for a perch breeding method to solve the above-mentioned problems.

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