A kind of artificial reproduction method of soft spiny schistos

Abstract

The invention provides an artificial propagation method of schizopygopsis malacanthus. The method comprises the following steps: 1, selecting pollution-free water; 2, collecting wild schizopygopsis malacanthus as backup parent fishes for domestication by using a net fishing mode; 3, selecting robust, disease-free, non-injury and nonteratogenic schizopygopsis malacanthus, of which the weight of each male fish is not less than 300 g and the weight of each female fish is not less than 400 g, as breeding parent fishes for breeding from the backup parent fishes of the wild schizopygopsis malacanthus after one-year domestication; 4, performing spawning induction preparation for the bred parent fishes bred for one year; 5, selecting mature parent fishes for artificial spawning induction; 6, performing artificial insemination on the parent fishes after artificial spawning induction; 7, performing artificial incubation by using a water flowing method. By using the method, the spawning induction rate of the schizopygopsis malacanthus reaches 80.00 percent, the fertilization rate reaches 63.48 percent and the hatching rate is 68.15 percent, large-scale artificial breeding of the schizopygopsis malacanthus can be realized, and the schizopygopsis malacanthus resource is effectively protected.

Description

technical field [0001] The invention relates to an artificial propagation method of soft spiny sclerosus. Background technique [0002] Schizopygopsismalacanthus belongs to Cyprinidae, Cyprinidae, Schizothorax subfamily, and the genus Schizopygopsismalacanthus. The local names are: earth fish, small mouth fish, etc. It belongs to cold water fish and likes to inhabit In the whirling waters of main and tributary streams and at the water inlets of plateau lakes, they live at the bottom of the habitat, overwinter in caves and crevices in winter, and their distribution altitude can reach 3000-4000 meters above sea level. Feeds on plant-based bait, and often scrapes algae and underwater plant debris on rocks with the well-developed horny edge of the jaw, and also eats the leaves of some aquatic microtubular plants. It is distributed in the middle and upper reaches of the Jinsha River and the upper reaches of the Yalong River in my country. It is the medium-sized economic fish wit...

AI Technical Summary

Problems solved by technology

The soft-spined fish is a fish that lays sinking eggs in the micro-flow water. With the development of the upper and middle reaches of the Jinsha River, the habitat of the flowing water has shrunk, which has a serious impact on the survival of the soft-spined fish. A Research Report on the Artificial Breeding of Schizostris spp.