Breeding method for propagated trachidermus fasciatus parent fishes and application of breeding method

Abstract

The invention belongs to the technical field of aquaculture, and particularly relates to a breeding method of propagated trachidermus fasciatus parent fishes and the application of the breeding method. By adopting a nutrition enhancer provided by the invention, after breeding of the trachidermus fasciatus, the trachidermus fasciatus is enhanced, and the breeding method of controlling the water temperature is adopted, so that the required nutrition can be supplemented in time, the condition that trachidermus fasciatus parent fishes do not eat food after breeding is effectively improved, the recovery period is shortened, and the purpose of prolonging the life cycle is achieved, the survival rate of the Songjiang perch parent fish is increased to 30% or above, and therefore, the effect of multiple breeding can be achieved, the genetic diversity of trachidermus fasciatus population is kept, and the protection and utilization of germplasm resources of the trachidermus fasciatus population are promoted. Results of the embodiment show that the survival rate of the breeding method of the propagated trachidermus fasciatus parent fishes is 30%-33%, and the survival rate of the propagated trachidermus fasciatus parent fishes is remarkably increased.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a breeding method for Songjiang perch broodstock after breeding and an application thereof. Background technique [0002] Songjiang perch (Trachidermus fasciatus) belongs to Scorpaeniformes (Scorpaeniformes), sculptidae (Cottidae), Songjiang perch (Trachidermus), also known as four gill perch, and the Yellow River carp, Songhua river salmon, Xingkai lake carp and known as "Chinese fish". "Four Famous Fish", its meat is tender, delicious and nutritious, and it is known as "the first fish in the south of the Yangtze River". Songjiang perch is a shallow sea carnivorous fish that migrates down to the sea. It used to be widely distributed, from Bohai Bay in the north to Xiamen in the south. However, in recent years, due to the construction of a large number of water conservancy facilities and the pollution of the water environment, the wild Songjiang perch is on the v...

AI Technical Summary

Problems solved by technology

[0003] At present, our country has broken through the artificial breeding and nursery technology of Songjiang perch, but in the artificial breeding process, the breeding period of Songjiang perch is no more than one year, and often no longer eats after breeding, and then gradually loses nutrients, eventually leading to death

This makes it impossible to maintain the genetic diversity and genetic structure of the parental population, which is not conducive to the efficient protection and utilization of Songjiang perch germplasm resources

Images