Methods of artificial propagation and release of Schizothorax schizophrenia in Yalong River

Abstract

The invention discloses an artificial fecundation releasing method for schizothorax chongi in Ya-lung River. The method comprises seven steps of selecting parent fish, injecting oxytocic drug, performing artificial insemination, hatching germ cells, fostering fish larva, breeding juvenile fish and transporting and releasing. According to the method, the fecundation releasing of the schizothorax chongi in Ya-lung River can be effectively realized; the population of the schizothorax chongi in Ya-lung River can be recovered; the high valued schizothorax chongi in Ya-lung River can exert higher economic benefit, so that the method has ultrahigh economic and environment ecological benefits.

Description

technical field [0001] The invention specifically relates to a method for artificially multiplying and releasing Schizothorax schizothorax from the Yalong River. Background technique [0002] The Yalong River is the largest tributary on the left bank of the Jinsha River in the upper reaches of the Yangtze River. Schizothorax is not only an important economic fish resource in the Yalong River Basin, but also a unique fish in the upper reaches of the Yangtze River. It is mainly distributed in the Dadu River, Yalong River, Jinsha Water systems such as the Yalong River and the Wujiang River play an important role in maintaining the balance of the ecosystem in the Yalong River water area. In recent years, due to human factors such as overfishing, water pollution, water conservancy projects and sand mining, the natural Schizothorax resources have declined seriously, which has affected the virtuous circle of society, economy and ecological environment in the watershed. [0003] At...

AI Technical Summary

Problems solved by technology

[0004] (1) Schizothorax grows slowly, sexual maturity is slow, and the fertilization rate is low, which is not conducive to the mass reproduction of Schizothorax;

[0005] (2) The hatching environment is carried out under natural conditions, which is prone to change, resulting in low fertilization rate, survival rate, emergence rate and survival rate, which is very unfavorable for the cultivation of Schizothorax

Images