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Artificial multiplication method of schizothorax prenati

A technology of artificial breeding of Schizothorax, which is applied in fish farming, food processing, climate change adaptation, etc., can solve the problem of artificial breeding technology with low induced production rate, fertilization rate and hatching rate, artificial breeding of Schizothorax The lack of technology and the impact on the development of Schizothorax, etc., to achieve the effect of increasing the efficiency of labor induction, improving immune and disease resistance, and improving disease resistance

Inactive Publication Date: 2017-04-26
FISHERIES INST SICHUAN ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there have been some reports on Schizothorax, there are relatively few artificial breeding techniques specifically for Schizothorax
[0003] The existing artificial propagation methods of Schizothorax chinensis mainly disclose the cultivation conditions in stages such as insemination, hatching, and seedling cultivation, such as temperature, time, and environmental requirements. bait, although these baits can provide some nutrients, but the nutrition is not comprehensive; at the same time, the induced labor rate, fertilization rate and hatching rate of the existing Schizothorax artificial reproduction technology are all low and extremely unstable, which greatly affects Development of Schizothorax industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The artificial propagation method of Schizothorax, including:

[0039] (1) Breeding of broodstock: Select broodstock with male fish over 4 years old, female fish over 5 years old and weighing more than 2kg, and put them in the nursery breeding pond; the water environment is: dissolved oxygen above 6.0mg / L, water flow rate 1m³ / h, transparency ≥ 40cm, pH value 7.0~7.5, water temperature 4-22℃;

[0040] Cultivation pool area 20m 2 , water depth 1.0m;

[0041] The running water culture mode is adopted, and the breeding density is 2.0kg / m 3 ;

[0042] After the full-mouthed Schizothorax enters the pond, the artificial compound feed is fed, and the amount of feeding is 1.5% of the body weight of the broodstock, and it is fed once a day in the morning and in the afternoon;

[0043] The artificial compound feed consists of the following components by weight:

[0044] 10 parts of fish meal, 20 parts of peanut cake, 2 parts of bone meal, 3 parts of trace element premix, 2 pa...

Embodiment 2

[0055] The artificial propagation method of Schizothorax, including:

[0056] (1) Breeding of broodstock: Select broodstock with male fish over 4 years old, female fish over 5 years old and weighing more than 2kg, and put them in the nursery breeding pond; the water environment is: dissolved oxygen above 6.0mg / L, water flow rate 1.5m³ / h, transparency ≥40cm, pH value 7.0~7.5, water temperature 4-22℃;

[0057] Cultivation pool area 40m 2 , the water depth is 1.5m;

[0058] The running water culture mode is adopted, and the breeding density is 3.0kg / m 3 ;

[0059] After the full-mouthed Schizothorax enters the pond, it is fed with artificial compound feed, and the feeding amount is 1.0% of the body weight of the broodstock, and it is fed once a day in the morning and in the afternoon;

[0060] The artificial compound feed consists of the following components by weight:

[0061] 20 parts of fish meal, 10 parts of peanut cake, 3 parts of bone meal, 2 parts of trace element pre...

Embodiment 3

[0072] The artificial propagation method of Schizothorax, including:

[0073] (1) Breeding of broodstock: Select broodstock with male fish over 4 years old, female fish over 5 years old and weighing more than 2kg, and put them in the nursery cultivation pond; the water environment is: dissolved oxygen above 6.0mg / L, water flow rate 1.2m³ / h, transparency ≥40cm, pH value 7.0~7.5, water temperature 4-22℃;

[0074] The fish fry breeding pond covers an area of ​​30m 2 , the water depth is 1.5m;

[0075] Flowing water culture, the breeding density is 2.0kg / m 3 ;

[0076] After the full-mouthed Schizothorax enters the pond, it is fed with artificial compound feed, and the feeding amount is 1.0% of the body weight of the broodstock, and it is fed once a day in the morning and in the afternoon;

[0077] The artificial compound feed consists of the following components by weight:

[0078] 15 parts of fish meal, 15 parts of peanut cake, 2 parts of bone meal, 2 parts of trace element...

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Abstract

The invention discloses an artificial multiplication method of schizothorax prenati. The method comprises the four steps of selecting and culturing parent fishes, artificial induced spawning, artificial inseminating and incubating. The method is low in cost, high in induced spawning efficiency, high in survival rate and fast in growth; specific oxytocic is adopted to be injected, so that the induced spawning efficiency is greatly improved; and meanwhile, an artificial compound feed containing a specific formula content is adopted to feed the schizothorax prenati, so that the growth velocity is greatly improved, meanwhile, the immunity and the resistance of the schizothorax are effectively improved, the survival rate is greatly improved, and the artificial multiplication method of the schizothorax prenati is a very effective multiplication method.

Description

technical field [0001] The invention specifically relates to a method for artificial reproduction of Schizothorax chinensis. Background technique [0002] Qikou Schizothorax is also called Yayu, Qikou, thin soft-shelled turtle, and Qikou fine scale fish. It is a cold-water fish and a bottom fish. It requires a lower water temperature environment. It likes to live at the junction of fast and slow currents. They mostly live in slow-flowing ponds. During the feeding season, they move around in an environment where the substrate is sand and gravel and the water flow is turbulent. There is a phenomenon of short-distance reproductive migration. Females need to reach sexual maturity at 4 years old, and males generally reach sexual maturity at 3 years old. . Schizothorax is distributed in the Minjiang River, Dadu River and other water systems. It is an important edible fish in the upper reaches of the Yangtze River. The individual is large, generally 0.5-1.0kg, and the maximum can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/30A23K10/22A23K10/26A23K10/37A23K20/20A23K10/18
CPCA01K61/00Y02A40/81Y02A40/818Y02P60/87
Inventor 周波龙治海李军王泽仁卢华徐飞戴绍祥林玉良冯波田小青
Owner FISHERIES INST SICHUAN ACADEMY OF AGRI SCI
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