Large-scale breeding method for hybrid pelteobagrus fulvidraco

Abstract

The invention discloses a large-scale breeding method for hybrid pelteobagrus fulvidraco. The large-scale breeding method comprises the following steps: pond selection and cleaning: cleaning a pond, selecting the area and the trend of the breeding pond, cleaning the pond by mixing quick lime and water, removing sludge by using a bulldozer or sucking sludge by using a sludge pump, exposing the bottom of the pond to the sun, and drying the bottom of the pond to crack; building of fish nests: building multiple rows of fish nests in the pond through reeds or branches, arranging the multiple rows of fish nests on one side of the pond in the east-west direction and arranging aerators on bank sides; fry releasing: scattering fries, after the internal and external water temperatures are adapted, opening fry oxygen bags, and slightly scooping pond water into the fry oxygen bags; bait putting and guarantee of water quality. Compared with the prior art, the method has the advantages that multiple rows of fish nests are built in the pond, oxygen is increased through air pumps, and fry death caused by oxygen deficit during fry gathering can be prevented; and water in the pond is used for washing the outer surface of a foam box during fry releasing, so that the temperature difference inside and outside the oxygen bags of the foam box is balanced, the inside and outside water bodies are mixed and buffered, and the survival rate of fries is increased.

Description

technical field [0001] The invention relates to the technical field of fish fry, in particular to a large-scale cultivation method for hybrid yellow catfish. Background technique [0002] Pelteobagrus fulvidraco belongs to Siluriformes, Bagridae, and Pelteobagrus. It is an important aquaculture species in my country. It is widely distributed in the Yangtze River system and is an important species in my country. Demersal small economic fish. Because the meat is delicious, the meat is tender, nutritious, and there are few intermuscular thorns, it can survive for a period of time after leaving water, and it can be marketed fresh. price. Therefore, it has become one of the leading varieties with great breeding prospects in my country. [0003] In the prior art, the open seedlings go to the pond to feed on the bait organisms that have been cultivated in the pond. The artificially cultured yellow catfish is likely to cause a large number of seedlings to die due to unstable bait ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the open seedlings go to the pond to feed on the bait organisms that have been cultivated in the pond. The artificially cultured yellow catfish is likely to cause a large number of seedlings to die due to unstable bait biomass, lack of seedling operation or difficult control of water quality.

The above-mentioned reasons will lead to low survival rate of yellow catfish fry