Fry culture apparatus

Abstract

The invention provides fry culture apparatus which can timely discharge fish pond excrement and food residues, has a high fry throwing density of a fish pond, and can be used for fry culturing ahead of time in winter. The fry culture apparatus comprises a fry culture pond; the fry culture apparatus is provided with a control device; the fry culture pond is provided with a water inlet pipe, a heater, a water discharge pipe and a temperature monitor; the heater and the temperature monitor are connected with the control device; the outlet of the water inlet pipe is provided with a spray head; thespray head is higher than the water level of the pond; and the bottom of the fry culture pond is connected with the water discharge pipe. According to the fry culture apparatus provided by the invention, because the water environment of the fry culture pond can be kept at an extremely good level for a long time, the fry throwing density can be about 80 times that of a common fry culture pond, thefry growth is fast, the survival rate is high, and the culture 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, due to their low resistance, fry seedlings have high requirements on the water body environment, such as: water quality, water temperature, water body oxygen content, etc. The breeding of fry seedlings 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 is surrounded by the bottom of the pond ...

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 pond water for a long time and affect the water quality, the ecological carrying capacity of the nursery pond is low, and the fry stocking density is high low temperature, the seedlings are prone to disease; the water temperature cannot be maintained in the nursery pond, fish breeding can only be carried out when the temperature is suitable in spring, and the breeding cycle is long

Images