Novel indoor sturgeon fry mouth-opening rearing device

Abstract

The invention discloses a novel indoor sturgeon fry mouth-opening rearing device. The device comprises an inflation pipe, a water inlet pipe, a water level pipe, a continuous feeding device and an incandescent lamp which are connected to a rearing chamber; and a partition plate with micropores is fixedly installed between the bottom of the rearing chamber and the inflation pipe, and the water inlet pipe and three continuous feeding devices are installed at one end of the edge of the rearing chamber. By adopting a micro-pore oxygenation mode, the device separated from the water inlet pipe can guarantee that dissolved oxygen in water is sufficient, and the problem that fry die due to oxygen deficit caused by insufficient water inflow is avoided. The phototaxis of the sturgeon fry is utilized, the incandescent lamp is installed on the edge of the rearing chamber, and most of the fry can be gathered together. Meanwhile, the continuous feeding devices are arranged beside the incandescent lamp, continuous feeding can be automatically conducted on the fry groups in a certain period of time, it is guaranteed that the fry can take enough bait, the situation that the fry bite and die due tohunger is effectively avoided, the nutritional requirements of the fry are fully met, and meanwhile, the labor cost is reduced.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a novel indoor sturgeon fry cultivation device with openings. Background technique [0002] After the fry just hatched, they will not eat immediately, but after a period of time in flowing water, they will eat their palatable bait in a suitable environment. We call this phenomenon the fry opening, because Fish fry are often affected by the environment and bait during the opening process, so the cultivation of fry during the opening process has received extensive attention. [0003] At present, most of the breeding systems of sturgeon open fry are flowing pools (basins), although they can exchange the breeding water body in time, there are also many deficiencies. If there is a shortage of water during the cultivation process, it will lead to hypoxia in the fry; the bait in the early stage of the sturgeon fry is usually a liquid form of red nematode crushed and mixed with wate...

AI Technical Summary

Problems solved by technology

If there is a shortage of water during the cultivation process, it will lead to hypoxia in the fry; the bait in the early stage of the sturgeon fry is usually a liquid form of red nematode crushed and mixed with water, and it is usually artificially fed at regular intervals, which will exist. The bait is lost with the water body, the bait feeding is uneven, and the bait feeding time is short, so it is impossible to ensure that most fish can eat enough bait in time, resulting in malnutrition, mutual bite, death and other phenomena in the fry, which affect the survival of the fry rate and growth performance

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