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Methods of Artificial Breeding and Release of Perch in Yalong River

A multiplication and release, artificial technology, applied in the fields of application, climate change adaptation, fish farming, etc., can solve the problems of low fertilization rate, survival rate, emergence rate and survival rate, unfavorable large-scale reproduction of perch carp, slow growth of perch carp, etc. Achieve the effects of improving hatching rate and survival rate, avoiding hypoxia, and increasing dissolved oxygen

Active Publication Date: 2019-01-29
YALONG RIVER HYDROPOWER DEV CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

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

Method used

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  • Methods of Artificial Breeding and Release of Perch in Yalong River

Examples

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Embodiment 1

[0030] This example takes the perch breeding and releasing process in the Yalong River Guanyinyan fish breeding and releasing station as an example. After years of hard work, the releasing station has studied the artificial breeding and releasing process of perch, and has now overcome this kind of artificial breeding. Many key technologies in the release, the artificial breeding and release process of perch will play a more active role in the restoration and protection of the fishery resources and ecological environment of the Yalong River; specifically:

[0031] Select healthy and sexually mature perch females and males caught in the Yalong River as brood fish, anesthetize the selected brood fish with anesthesia MS-222 60mg / L, and then inject oxytocin drugs at the base of the pectoral fin of the brood fish, inject twice , the time interval between the two injections is 36 hours, and the effect is 48 hours at a water temperature of 13°C after each injection; the dosage of oxyto...

Embodiment 2

[0040] The healthy and sexually mature perch females and males caught in the Yalong River were selected as brood fish, and the selected brood fish were anesthetized with the anesthetic MS-222 120㎎ / L. The time interval between the two injections was 36 hours, and the effect was 48 hours at a water temperature of 13°C after each injection; the dosage of oxytocin drugs for male fish was half that of female fish; Composition: carp pituitary gland 11mg + chorionic gonadotropin 10μg + luteinizing hormone releasing hormone analogue 800IU; 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 the efficiency of artificial oxytocin, It is more conducive to the cultivation and management of fry in the later stage.

[0041] Select mature female fish with obvious abdominal distension and strong physique after injection of oxytocic drugs for artificial dry insemination, ...

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Abstract

The invention discloses an artificial proliferation and release method for Ya-lung river percocypris pingi. The artificial proliferation and release method comprises seven steps of choosing a parent fish, injecting an oxytocic, artificially inseminating, hatching a fertilized egg, culturing a fry, culturing an advanced fry, and transporting and releasing. The method effectively implements proliferation and release of the Ya-lung river percocypris pingi, not only is the Ya-lung river percocypris pingi population recovered, but also the Ya-lung river percocypris pingi with a very high value gives play to a better economic benefit, and therefore, the method has quite high economic and environment ecological benefits.

Description

technical field [0001] The invention specifically relates to a method for artificially multiplying and releasing Yalong River perch. 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. Perch 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 River and Wujiang River It plays an important role in maintaining the balance of the ecosystem in the Yalong River waters. In recent years, due to human factors such as overfishing, water pollution, water conservancy projects and sand mining, the natural perch resources have declined seriously, affecting the virtuous circle of society, economy and ecological environment in the basin. [0003] At present, there are also many researchers using the method of artificial multiplication to br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10
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 CO LTD
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