A kind of artificial breeding method of silk-tailed beetle

Abstract

The invention relates to a completely-artificial hemibagrus wyckioides reproduction method. According to the method, individuals with remarkable growth rate advantages are selected from F1 progenies obtained through wild parent reproduction to serve as reserved parent fish, gender distinguishing is conducted after the reserved parent fish is over two years old, and then superior individuals are selected for cultivation and taken as artificial parent fish after being bred to over three years old; individuals from different wild parent combinations are selected from the artificial parent fish to serve as male and female parent fish for completely-artificial reproduction; odinagogue is injected into the female parent fish, and odinagogue is also injected into the male parent fish when odinagogue is injected into the female parent fish for the second time; dry artificial insemination is conducted by dissecting the male fish to take out testes and acquire seminal fluid and conducting egg stripping on the female fish, and then incubation and fry cultivation are conducted by routine. By the adoption of the method, the wild parents can be protected, cost for obtaining the wild parent fish can be reduced, labor force is saved remarkably, reproduction efficiency is improved, individuals with good growth traits can be selected in a targeted mode for reproduction, genetic diversity is maintained, and the problems of inbreeding and germplasm resource degradation during conventional reproduction are solved.

Description

technical field [0001] The invention relates to a fully artificial propagation method of chrysalis, which belongs to the technical field of aquaculture. Background technique [0002] Silktail, scientific name Mystus wyckioides Chaux et Fang, the local name is long bearded fish. Taxonomically, it belongs to Siluriformes Siluriformes, Osmanthus Bagridae, and Osmanthus genus Mystus , named for the elongation of the upper lobe of the caudal fin into filaments. In China, it is an indigenous species of Yunnan, distributed in the tributaries of the Lancang River system, rare in the main stream of the Lancang River; abroad, it is distributed in the lower reaches of the Mekong River system. The body color of the silk tail is beautiful, the back is cyan, the side of the body is light blue, gradually becomes lighter, and the abdomen is white. The outer edges of dorsal, pelvic and anal fins are slightly red, and the caudal fin is red. Its meat is tender and snow-white, deliciou...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of high cost and large artificial labor caused by the need to directly kill wild broodstock in the prior art, the present invention provides a method for obtaining the F2 generation fry of I. chinensis through full artificial propagation. The method has the function of protecting the wild parent and can Oriented selection of individuals with excellent growth traits for breeding, maintaining genetic diversity, avoiding the advantages of inbreeding, and at the same time suitable for mass production of seedlings for breeding, laying a good foundation for the selection and breeding of silktail fish species