Fry incubation and rearing pond with fish spawning nests

Abstract

The invention relates to the field of aquaculture and aims at providing a fry incubation and rearing pond with fish spawning nests and improving the survival rate of fries. According to the technical scheme, the fry incubation and rearing pond with the fish spawning nests comprises a pond body, wherein the pond body is provided with a water outlet portion and a matched aeration structure, and air outlet holes of the aeration structure are evenly formed along the periphery of the water outlet portion. The aeration structure produces a large amount of air bubbles distributed around the water outlet portion. Therefore, the phenomenon that fries poor in swimming ability go to the surrounding of the water outlet portion, are sucked, cannot break away and accordingly are dead can be well prevented, and the survival rate of the fries is effectively improved. In addition, at an incubation stage, the aeration structure can play an aeration oxygenation role, necessary oxygen is provided for fry incubation, and higher incubation rate is ensured. Furthermore, the fry incubation and rearing pond is additionally provided with the fish spawning nests facilitating fish spawning, a water inlet pipeline and a water outlet system, wherein the water inlet pipeline and the water outlet system are convenient to use. The fry incubation and rearing pond is suitable for fish spawn incubation and rearing and is used in the field of aquaculture.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a fry hatching and cultivating pool. Background technique [0002] At present, in fish farming, the hatching and cultivation of fry are separated. The common practice is to place the fertilized eggs in the hatching tank first, and hatch them with flowing water. The fish fry hatched from the fertilized eggs are then transferred to outdoor ponds to be cultivated into standard seedlings, or directly cultured into commercial fish. On the one hand, this method needs to use a lot of water and occupy land, wasting resources; on the other hand, because the fry are cultivated in outdoor ponds, the breeding process is easily affected by external factors such as weather and water pollution, and the mortality rate is relatively high. [0003] Therefore, the indoor circulating water seedling system has become the future development trend of the seedling industry. However, the newly hatched fry, ...

AI Technical Summary

Problems solved by technology

However, the newly hatched fry, commonly known as "splashes", have weak swimming ability and will move with the water flow to the water outlet, and cannot escape, resulting in death and affecting the survival rate of fry

In addition, the existing hatching and cultivation pools are usually set up in a centralized manner. When water needs to be replenished or drained in each pool, it is necessary to enter each pool for operation, which is very inconvenient.

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