Method for quickly cultivating Takifugu bimaculatus

Abstract

The invention provides a method for quickly cultivating Takifugu bimaculatus, and relates to a method for cultivating fishes. The method comprises the following steps: S1. selecting female Takifugu bimaculatus and adult male Takifugu rubripes whose weights are larger than 500 g as parent fishes every February, cultivating the parent fishes in a cement pond full of sea water, and feeding fresh oyster or shelled shrimp to the parent fishes to promote fully development of sexual glands; S2. injecting oxytocic to the parent fishes when the temperature of water in the indoor cement pond naturally rises up to more than 20 DEG C in the spring, putting injected parent fishes in a spawning pond, keeping the environment quiet so that the two kinds of parent fish can develop to adult fish at the same time; S3. manually collecting spawns, carrying out dry artificial insemination and hatching the oosperm to prelarva; S4. cultivating the prelarva in a cultivating pond until the average length of fry is larger than 2.0 cm; and S5. cultivating the fry in an earth pond until to the next winter, to achieve commercial fishes whose average weight is 400g. The period of cultivation can be shortened by one year.

Description

Technical field [0001] The invention relates to a fish breeding method. Background technique [0002] The pufferfish produced in Fujian Province is a kind of aquatic treasure with high economic value and great development potential. According to measurements, each 100g of meat contains 18.7g of protein, which is higher than that of yellow croaker; while the fat content is 0.26g, which is the least fat content in fish. In addition, it is also rich in vitamins, minerals and a variety of trace elements beneficial to the human body. And because its meat is white, tender, delicious, and nutritious, it is suitable for both raw and cooked food, and can be made into dry products with unique flavors. It is regarded as first-class aquatic products by coastal fishermen of my country, Japanese and Korean nationals. [0003] However, the growth rate of pufferfish is slower. In the past, the larvae produced by natural mating between female puffer and male puffer used conventional marine fish b...

AI Technical Summary

Problems solved by technology

[0003] However, the growth rate of puffer is relatively slow. In the past, the larvae produced by natural mating of female puffer and male puffer were used in conventional marine fish farming methods, using small miscellaneous fish as bait, and it took more than 3 years to breed To reach commercial fish (average weight greater than 400g)

Due to the slow growth of puffer and the long breeding cycle, it is limited to improve the economic benefits of breeding