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Yalong River schizothorax wangchiachii artificial proliferation and release method

A technology of schizothorax, multiplication and release, 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, slow growth of schizothorace, unfavorable Problems such as the mass reproduction of Schizothorax have achieved the effect of protecting the Yalong River Schizothorax population, large economic and environmental ecological benefits, and increasing the dissolved oxygen in the pool water

Inactive Publication Date: 2017-02-22
YALONG RIVER HYDROPOWER DEV COMPANY
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  • Abstract
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  • Application Information

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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  • Yalong River schizothorax wangchiachii artificial proliferation and release method

Examples

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Embodiment 1

[0028] In this embodiment, the process of increasing and releasing Schizothorax brevista in the fish breeding and releasing station of Jinping-Guandi Hydropower Station of the Yalong River is taken as an example. After years of hard work, the release station has carried out research on the artificial proliferation and releasing process of Schizothorax brevis. Many key technologies in this kind of artificial proliferation and release have been overcome, and the artificial proliferation and release process of Schizothorax brevista will play a more active role in the restoration and protection of fishery resources and ecological environment in the Yalong River; specifically:

[0029] The healthy and sexually mature Schizothorax females and males caught in the Yalong River were selected as brood fish, and the selected brood fish were anesthetized with the anesthetic MS-222 6mg / L, and then the oxytocin drugs were injected at the base of the pectoral fins of the brood fish. Effect at...

Embodiment 2

[0038] The healthy and sexually mature Schizothorax females and males caught in the Yalong River were selected as brood fish, and the selected brood fish were anesthetized with the anesthetic MS-222 12mg / L, and then the oxytocin drugs were injected at the base of the pectoral fins of the brood fish. Effect at 16°C for 48 hours; the oxytocin drug used per kg body weight of female fish consists of the following components: carp pituitary gland 1mg + chorionic gonadotropin 16μg + luteinizing hormone releasing hormone analogue 1400IU; male fish oxytocin drug dosage is half of a female fish;

[0039] Select mature female fish with obvious abdominal distension and strong physique after injection of oxytocic drugs for artificial dry insemination, wipe the genital opening and the nearby body surface with a dry towel, and use your fingers on the upper part of the female abdomen from top to bottom Gently squeeze the ovary until the eggs cannot flow out naturally. Immediately after takin...

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Abstract

The invention discloses a Yalong River schizothorax wangchiachii artificial proliferation and release method. The method includes the seven steps of parent fish selection, oxytocic injection, artificial insemination, zygote hatching, fish larvae breeding, advanced fry breeding and transport and release. Yalong River schizothorax wangchiachii has extremely high economic value. Artificial proliferation and release of Yalong River schizothorax wangchiachii are achieved, and influences of hydro-junctions on schizothorax wangchiachii populations can be effectively reduced. Besides, wild resource recovery is facilitated, basic resources are provided for biological study, and economic and environmental ecological benefits are great.

Description

technical field [0001] The invention specifically relates to a method for artificially multiplying and releasing 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 present, the...

Claims

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Application Information

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IPC IPC(8): A01K61/17A01K61/10
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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