Method for factory puffer fish fry cultivation

Abstract

The invention relates to a method for factory puffer fish fry cultivation. The method comprises the following production steps: parent fish cultivation and screening, artificial spawning, artificial insemination, artificial incubation, factory fish fry cultivation, outdoor large-size fingerling cultivation, fish fry transportation and the like. The method is characterized in that female fishes with an age of over three years and a weight of more than 750 grams and male fishes with an age of over two years and a weight of more than 45 grams serving as puffer fishes are taken as backup parents; a simulated natural ecological cultivation mode is adopted. The artificial spawning is performed by adopting combined leuteinizing hormone releasing hormone analogue and carp pituitary gland injection. The incubation of fertilized eggs is performed by adopting incubating barrel incubation in flowing water or ovum sticking plate incubation in still water. According to the method provided by the invention, the production functions of the puffer fishes are improved through scientifically controlling the breeding environment of the puffer fishes, so that a large amount of ovum and sperms is produced; in the cultivation and growth environment of fries in a simulated natural environment state, the survival rates and the growth speed of the fries are increased.

Description

technical field [0001] The invention relates to a puffer puffer industrialized seedling cultivation method, which belongs to the technical field of aquaculture. Background technique [0002] Pufferfish has been a treasure among fishes since ancient times. It is a delicacy on banquets and is favored by people. There are more than 20 species in the genus Fugu, and there are four or five species suitable for artificial breeding, of which there are two species in marine culture, and only two species in freshwater culture, namely Fugu obscurus and Fugu obscurus. In the 1960s, Japan carried out research on the artificial breeding of red-finned puffer, which was initially successful. From the 1970s to the 1990s, some achievements have been made in the artificial breeding technology of puffer fish, and it has reached the level of commercial production. The research on the artificial propagation of freshwater puffer fish in the Yangtze River system in my country began in the late 1...

AI Technical Summary

Problems solved by technology

Previous studies have shown that puffer puffer gonads cannot fully mature without going through anadromous migration