Artificial crossing cultivation method of seawater takifugu species

Abstract

The invention discloses an artificial crossing cultivation method of seawater takifugu species. The method comprises screening, cultivating and artificial propagation of parent takifugu, incubating, fingerling cultivating and other processes, and is characterized in that on the basis of fully grasping the breeding ecological environment and gonad growth rules of takifugu obscurus and takifugu flavidus, the takifugu flavidus is used as a female parent and the relatively large takifugu obscurus is used as a male parent to simulate a natural ecological environment; mature gonad and ovulation of the parent takifugu are realized by hormone control; an artificial insemination method is employed to realize hybridization among the takifugu species. Synchronously, in the hybridization process, the ecology management is enhanced; and therefore, the oxytocic rate of the hybridization reaches 95 percent, the fertilization rate, the hatchability rate and the opening rate all reach above 80 percent, and the aberration rate of the fingerlings is below 2.0 thousandth.

Description

technical field [0001] The invention belongs to the technical field of fishery resources. In particular, the invention relates to the breeding technology of the genus Fugu, more precisely, it is a method for artificially crossing the species of Fugu using female Fugu chrysanthemum and male Fugu obscura. Background technique [0002] Pufferfish (Fugu), commonly known as puffer fish, bang fish, Ba fish. Due to the deterioration of the ecological environment of puffer and the overfishing of puffer, the number of puffer has declined sharply in recent years. Therefore, people have carried out research on the artificial breeding technology of puffer obscurus and puffer chrysanthemum, and formed a set of perfect human reproduction technology. In recent years, due to the breakthrough of the artificial propagation technology of Fugu obscurus and Fugu chrysanthemum, the culture of puffer fish is developing vigorously. degenerate phenomenon. In the process of artificial breeding, th...

AI Technical Summary

Problems solved by technology

In the process of artificial breeding, the quality of the parents cannot be guaranteed. During the breeding process, diseases occur frequently, individual growth is uneven, and the size gradually becomes smaller. These phenomena have seriously affected the breeding development of oriental puffer. In order to realize the long-term artificial breeding and breeding of puffer, it is necessary to start from the improvement and selection of species, and use the existing technology and means to select and cultivate the species of puffer with fast growth, large size and less disease.