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Cultivation method for enhancing physique of weak young Chinese sturgeon

A technology to strengthen the cultivation and cultivation of Chinese sturgeon, applied in fish farming, climate change adaptation, animal feed, etc., can solve the problems of death, improper domestication of weak seedlings, and economic loss of seedling cultivation.

Inactive Publication Date: 2010-06-23
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Application Information

AI Technical Summary

Problems solved by technology

These weak seedlings often die due to improper domestication methods, starvation or malnutrition, causing large economic losses to seedling cultivation

Method used

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Embodiment Construction

[0008] 1. Weak seedling screening: Weak seedlings are screened out in the cultivation pool. That is to select weak seedlings with thin body, large head, slender tail, slow swimming, slow feeding activity or less feeding, and certain anorexia, and screen the weak seedlings with these characteristics to another pool for special cultivation. , Weak seedlings are screened every day, and weak seedlings are found to be taken out in time for intensive cultivation to avoid death.

[0009] 2. Enhancement of bait: Chinese sturgeon larvae are fed with live water earthworms or zooplankton live bait after the weak seedlings are opened. The broken pieces of water earthworms gradually increase according to the increase of fry diameter; the number of feedings is 9 times a day, 3 times each in the morning, afternoon and evening; the amount of feeding each time is about 15% of the body weight. Weak juvenile Chinese sturgeon juveniles are fed with live water worms 6 times a day, 2 times in the ...

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Abstract

The invention discloses a cultivation method for enhancing the physique of weak young Chinese sturgeon, relating to seed cultivation technique in aquiculture and aiming at the technical problem needed to be solved; the technical proposal thereof comprises screening of the weak, enhancement by baits, pond classification, environmental regulation and control, regulation and control of water quality and food habit domestication, the method is characterized by comprising the steps: screening the weak young Chinese sturgeon for cultivation in another pond; feeding live baits, like live tubificidae or zooplankton, to the weak young Chinese sturgeon starting to eat during the baby stage; classifying the resultant physique-enhanced young Chinese sturgeons to another pond and classifying the young Chinese sturgeons with about the same size in one pond; setting light source, depth of water, flow speed of water, dissolved oxygen of water, water temperature, pH value, limit amount of ammonia nitrogen, transparency of water for the cultivation pond and further carrying out the procedures of daily change of water, removal of residual baits, washing of feeding platform and prevention and treatment of diseases; and during the young stage, implementing food habit domestication and gradually decreasing the amount of tubificidae and increasing the amount of artificial feed day by day. The method is used for the physique-enhanced cultivation of weak young Chinese sturgeon.

Description

technical field [0001] The invention belongs to the seed cultivation technology of aquaculture. Background technique [0002] Chinese sturgeon is a first-class key protected wild animal in my country. It is a very ancient fish with a history of more than 100 million years. It is called "water panda" and "national treasure" and has extremely high scientific research value. Chinese sturgeon is a kind of river-sea migratory fish. It mainly lives in the ocean all its life. Sexually mature individuals enter the Yangtze River from the coastal waters in May to June, and reach the upper reaches of the Yangtze River to spawn and reproduce in September to November. The hatched larvae go down the river and reach the mouth of the Yangtze River from May to June of the following year. They seek bait in the brackish water estuary from July to August. After September, they enter the sea to fatten up for the winter, and then go upstream to reproduce and migrate until they are sexually mature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K1/18
CPCY02A40/81
Inventor 冯广朋刘鉴毅庄平章龙珍石小涛沈闪
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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