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

A technology for multiplying and releasing Schizothorax, which is applied in fish farming, application, climate change adaptation, etc., can solve the problem of low fertilization rate, survival rate, emergence rate and survival rate, unfavorable mass reproduction of Schizothorax, fine scale Schizothorax Slow growth of fish and other problems, to achieve the effect of improving hatching rate and survival rate, promoting complete gonad development, and good economic benefits

Active Publication Date: 2019-02-12
YALONG RIVER HYDROPOWER DEV COMPANY
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  • Summary
  • Abstract
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  • Claims
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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

Method used

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

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Embodiment 1

[0030] In this embodiment, the process of multiplying and releasing Schizothorax schizothorax in the Yalong River Guanyinyan fish breeding and releasing station is taken as an example. After many years of hard work, the releasing station has studied the artificial proliferation and releasing process of Schizothorax schizothorax. After overcoming several key technologies in this artificial proliferation and release, the artificial proliferation and release process of Schizothorax schizothorax will play a more active role in the restoration and protection of fishery resources and ecological environment in the Yalong River; specifically:

[0031] Select healthy and sexually mature Schizothorax schizothorax females and males caught in the Yalong River as broodstock, anesthetize the selected broodstock with anesthesia MS-222 6mg / L, and then inject oxytocin drugs at the base of the pectoral fins of the broodstock, Inject twice, the time interval between the two injections is 36 hours...

Embodiment 2

[0040] The healthy and sexually mature Schizothorax female and male fish caught in the Yalong River were selected as brood fish, and the selected brood fish were anesthetized with the anesthetic MS-222 120㎎ / L, and then the oxytocin drug was injected at the base of the pectoral fin of the brood fish , injected twice, the time interval between the two injections is 36 hours, and the effect is 90 hours at a water temperature of 16°C after each injection; the dosage of oxytocin drugs for male fish is half that of female fish; the oxytocin drugs used by female fish per kilogram body weight are as follows: Composition by weight: Carp pituitary gland 3mg + chorionic gonadotropin 13μg + luteinizing hormone releasing hormone analogue 1000IU; this oxytocin drug helps to promote the complete gonad development of male and female broodstock, and at the same time makes most broodstock estrus at the same time, improving artificial induced labor The efficiency is more conducive to the cultivat...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A01K61/17
CPCA01K61/00Y02A40/81
Inventor 王红梅邓龙君甘维熊曾如奎刘小帅许勇李精华孙哲
Owner YALONG RIVER HYDROPOWER DEV COMPANY
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