Method for inducing the buffer flouder to naturally spawn

Abstract

The invention relates to a method for inducing verasper moseri to lay eggs naturally, which belongs to the aquaculture field. The method is an artificial induction technology for the natural egg laying of parent fish of marine fish, namely, verasper moseri, and solves the problem that the ovulation period of artificially fed verasper moseri is unstable, the ovarian cavity is often overmature, the fertility rate is obviously reduced, and thus mass fertilized eggs are difficult to obtain. The method for inducing verasper moseri to lay eggs naturally adopts the steps of manual control of water temperature for parent fish culture, temperature change stimulation and recovering to the original stimulation. Through the manual control on the parent fish of verasper moseri, the parent fish is induced to lay eggs naturally, in order to obtain mass high quality fertilized eggs, therefore, the technical base for adding another new culture breed in the marine culture industry of China is settled, and the method has great significance to the industrialized development of verasper moseri.

Description

technical field [0001] The invention belongs to the field of aquaculture, and specifically relates to a method for inducing natural spawning of spotted star flounder broodstock to obtain high-quality fertilized eggs by artificially regulating the temperature mutation of environmental factors. Background technique [0002] The spotted flounder is mainly distributed in the Sea of ​​Okhotsk, the Northwest Seas of Japan, the East and Southwest Seas of the Korean Peninsula, and the Yellow and Bohai Seas of China. It is a cold-temperate bottom fish in the Northwest Pacific Ocean. The spotted star flounder is larger in size, faster in growth, less in bony spurs, smaller in viscera, and more edible. It is an excellent breeding species. [0003] Star flounder is not easy to spawn naturally indoors. In the process of using artificial insemination technology, due to the unstable ovulation cycle of the spotted flounder under artificial feeding, the ovarian cavity is often over-ripe, th...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a method for inducing natural spawning of spotted flounder, which is an artificial induction technique for the natural spawning of marine fish spotted flounder broodstock, and solves the problem of the ovulation cycle caused by artificial breeding of spotted flounder. Unstable, the ovarian cavity is often overripe, the fertilization rate drops significantly, and it is difficult to obtain batches of fertilized eggs, etc.