Procypris merus artificially breeding method

Abstract

The invention discloses a procypris merus artificially breeding method. The procypris merus artificially breeding method comprises parent fish culture including feeding age-appropriate procypris merus, parent fish selection including selecting procypris merus good in development of body and gonads, spawning induction including inducing spawning of the selected procypris merus by injecting spawninginducing drug, artificial insemination including placing the spawning-induced parent fishes into a spawning pond, filling water into the spawning pond to form flowing water, when the parent fishes are in heat and start spawning, collecting eggs and semens, slightly stirring the collected mature eggs and semens in a container to obtain fertilized eggs, unclicking including unstick the fertilized eggs through yellow mud suspension, and hatching including applying a two-stage hatching method. The procypris merus artificially breeding method improves the egg fertilization rate and the hatching rate of procypris merus as well as the survival rate of fries, achieves scale production of procypris merus fries, improves the success rate of procypris merus artificial breeding and reduces the culture number of the procypris merus parent fishes as well as the production cost.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an artificial propagation method of Wuyuan carp. Background technique [0002] Wuyuan carp (Procypris merus) belongs to Cyprinidae, Cyprinidae, Procypris genus. Distributed in the middle and upper reaches of major rivers in Guangxi, it is a unique fish in the Pearl River. In recent years, factors such as river blockage, water pollution and overfishing caused by cascade water conservancy development in Guangxi have caused serious damage to river fish resources. The natural resources of Wuyuan carp are very scarce and urgently need to be protected. It has been included in the endangered species list (vulnerable species) in the "China Red Data Book of Endangered Animals" (1998). [0003] The reproduction of Chinese carp cultured fish generally adopts the physiological and ecological method of artificial reproduction. The whole process is divided into four links: broodstock cul...

AI Technical Summary

Problems solved by technology

[0004] Using the above conventional fish artificial propagation method to carry out the artificial propagation of Wuyuan carp has the problems of low fertilization rate of fish eggs, susceptibility to saprolegniasis, low hatching rate, and low fry survival rate, making it difficult to produce fry on a large scale

Images