A method for hatching fertilized eggs in the early breeding process of largemouth bass

Abstract

The invention belongs to the field of fish breeding, and in particular relates to a method for hatching fertilized eggs in the early breeding process of largemouth bass. The hatching method includes building a hatching greenhouse, the hatching greenhouse includes a hatching pool, and a greenhouse body located on the hatching pool, putting artificial fish nests attached with fertilized eggs into the hatching pool, and establishing a temperature control system in the hatching greenhouse System to control the water temperature of the hatching tank at 25-28°C. In a further technical solution, a matching hatching water filtration system is established upstream of the hatching pool, and a water outlet structure is established downstream of the hatching pool. Practice has shown that establishing a temperature control system in the hatching tank and controlling the water temperature of the hatching tank to 25-28°C can effectively prevent the fertilized eggs of largemouth bass from being infected with saprolegniasis and greatly improve the hatching survival rate of fertilized eggs. The hatching water filtration system can ensure the hatching water quality and prevent harmful organisms from entering the hatching tank. The water outlet structure is also used in the process of changing the water or running water in the hatching tank.

Description

technical field [0001] The invention belongs to the field of fish breeding, and in particular relates to a method for hatching fertilized eggs in the early breeding process of largemouth bass. Background technique [0002] In the reproduction and production of fish, the fry bred earlier can be sold at a higher price due to the vacancy of the market, and can occupy the market as soon as possible to obtain more benefits. Therefore, more and more largemouth bass are brought to the market early through early breeding. During the artificial early breeding of largemouth bass, after the parent fish of largemouth bass are fertilized, the fertilized eggs of largemouth bass are fertilized through artificial fish nests. It is collected and then placed in a special hatching tank for hatching. However, during the hatching process, the fertilized eggs of largemouth bass are very susceptible to saprolegniasis, resulting in the death of fertilized eggs and a low hatching survival rate. Co...

AI Technical Summary

Problems solved by technology

Therefore, more and more largemouth bass are brought to the market early through early breeding. During the artificial early breeding of largemouth bass, after the parent fish of largemouth bass are fertilized, the fertilized eggs of largemouth bass are fertilized through artificial fish nests. Collect them and put them in special hatching tanks for hatching. However, during the hatching process, the fertilized eggs of largemouth bass are very susceptible to saprolegniasis, resulting in the death of fertilized eggs and a low hatching survival rate.

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