A kind of large-scale cultivation method of Pachymandibacter seedlings

A breeding method and technology of bream, which is applied in the field of large-scale breeding of fish fry, can solve the problems of easy disease outbreak, strong stress response, slow growth of bream fry, etc., to enhance the ability of disease resistance and water quality. Excellent, the effect of improving the ability to resist stress and tolerate human manipulation

Active Publication Date: 2021-08-10
CHINA THREE GORGES PROJECTS DEV CO LTD
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Problems solved by technology

[0005] The invention provides a method for large-scale cultivation of pachybranchus seedlings. Aiming at the bottleneck technical difficulties existing in the traditional seedling cultivation process, the present invention comprehensively utilizes polyculture of predatory fish, slow-release control of fertilizer sources in ecological ponds, Nutritional immune strengthening and anti-stress training and other technical means can effectively solve a series of technical problems such as slow growth, strong stress response and easy outbreak of diseases under artificial cultivation conditions.

Method used

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  • A kind of large-scale cultivation method of Pachymandibacter seedlings
  • A kind of large-scale cultivation method of Pachymandibacter seedlings

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Embodiment 1

[0026]This method was implemented at the Xiluodu Xiangjiaba Rare and Specific Fish Breeding and Release Station of China Three Gorges Corporation. The breeding test seedlings were obtained from self-induced breeding at the release station. The broodstock used for breeding were domesticated and matured artificially. The specific conditions are as follows:

[0027] A large-scale breeding method for bream seedlings. The method divides the entire seed cultivation process into three stages according to the growth and development rules of larvae, juveniles, and juveniles, the learning characteristics of breeding ecology, and the nutritional and physiological requirements: The specific operation steps of the method are as follows:

[0028] (1) Micro-flow water cultivation in glass fiber tanks: 2-15 day-old early fry can be cultivated in glass fiber tank micro-flow mode, and air stones are evenly arranged in the cultivation tank for aeration, and bait is fed at the age of 4 days. The w...

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Abstract

The invention relates to a method for large-scale cultivation of bream seedlings, belonging to the technical field of rare and unique fish cultivation. According to the characteristics of growth and development of bream larvae, juveniles and juveniles in different stages, breeding ecological learning and nutritional and physiological characteristics, the present invention divides the entire seed cultivation process into three stages: glass fiber tank micro-flow water cultivation, large water surface ecological pond Cultivation and intensive cultivation in running water ponds. The invention constructs a healthy, safe and efficient large-scale seed cultivation mode, which effectively solves a series of problems such as frequent disease occurrence, slow growth speed and low utilization efficiency of facilities in the traditional seed cultivation process, and is a rare species in the upper reaches of the Yangtze River It provides a reference for the large-scale seed breeding of unique fish.

Description

technical field [0001] The invention relates to a method for large-scale cultivation of fish fry, in particular to a method for cultivating bream, a unique fish in the upper reaches of the Yangtze River. Background technique [0002] Thick bream ( Megalobrama pellegrini ) belongs to Cyprinidae, Cyprinidae, Cyprinidae, and Bream. It is mainly distributed in the main stream of the upper reaches of the Yangtze River and the middle and lower reaches of the main tributaries of the Minjiang River and Jialing River. Economic value and nutritional value. In recent years, due to overfishing, water pollution, and construction of water conservancy projects, the resources of Pachybrama have declined sharply. Quantitatively evaluating Pachybrama from the aspects of threat degree, genetic diversity, and value has reached the state of urgent indoor protection. In order to promote the coordinated development of hydropower project development and water ecological environment protection, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/18A23K20/163A23K20/174
CPCA23K10/18A23K20/163A23K20/174A23K50/80A01K61/10Y02A40/81
Inventor 代伟廖建新马树清张勇张慧星虎永辉肖剑波
Owner CHINA THREE GORGES PROJECTS DEV CO LTD
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