Fry breeding device

Abstract

The technical problem to be solved by the present invention is to provide a fish fry nursery device that can increase the density of fish fry, and the fish breeding work can be carried out in advance in winter, which is beneficial to the circulation of pool water along the pool wall. It relates to the field of aquaculture, and specifically relates to a fish fry nursery device. It includes a nursery pool, the nursery pool includes a pool bottom and a pool wall, and the fry nursery device is provided with control equipment; the pool wall is surrounded by a circle, and the nursery pool is provided with a water inlet pipe, a heater, a drain pipe and a temperature monitor; The heater and the temperature monitor are connected with the control equipment, the outlet of the water inlet pipe is provided with a nozzle, the nozzle is higher than the water level of the pool and the water outlet direction is tangent to the pool wall; the bottom of the pool is inclined relative to the pool level, so The drainage pipe is set at the lowest point of the pool bottom. By adopting the fish fry nursery device of the invention, the seedlings grow quickly, the survival rate is high, and the breeding benefit can be improved.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a fry nursery device. Background technique [0002] Fish is one of the important food materials for human beings. It has high nutritional value and economic value. The use of artificial large-scale farming will be the trend of fishery development in the future. In the process of artificial breeding of fish, fry seedlings have high requirements on the water environment due to their low resistance, such as: water quality, water temperature, water body oxygen content, etc. The breeding of fry has always been a technical difficulty. The traditional way of raising seedlings is: put the newly hatched fry in the nursery pond for separate cultivation according to the ecological carrying capacity of the nursery pond. Traditional nursery ponds generally adopt such a structure: the nursery pond is equipped with pool water, the nursery pond includes the bottom and the wall of the pond, the walls ...

AI Technical Summary

Problems solved by technology

The traditional nursery pond has the following disadvantages: the fish excrement and food residues in the nursery pond are deposited at the bottom of the fish pond and cannot be discharged. The decomposition of the sediment will consume the oxygen content in the fish pond water for a long time and affect the water quality. The ecological carrying capacity of the nursery pond is low. The seedlings are relatively low, and the seedlings are prone to disease; the nursery pond cannot maintain the water temperature, and the fish breeding work can only be carried out when the temperature is suitable in spring, and the breeding cycle is long; the nursery pond is square, which is not conducive to the circulation of water along the wall of the pond, and the fluidity of the pond water is poor

Images