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Early-stage domestication and cultivation method of paddlefish seedlings

A breeding method, the technology of spoon-nose sturgeon, which is applied in the field of early domestication and cultivation of fish fry, can solve the problems of high mortality rate, complicated operation, and difficulty in popularization, etc., and achieve the effect of easy promotion, good quality and low cost

Inactive Publication Date: 2013-04-03
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems of high mortality rate, complicated operation, high cost and difficult popularization under the traditional breeding method of fish fry, thereby providing a method for early domestication and cultivation of sturgeon fry

Method used

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specific Embodiment approach 1

[0012] Specific embodiment one: the method for the early domestication and cultivation of the sturgeon fry of the present embodiment is carried out according to the following steps:

[0013] 1. According to the density of 5,000-6,000 larvae in each circular FRP tank, put the spoon-kissed sturgeon larvae into the sterilized circular FRP tank, and cultivate them with live baits at a temperature of 18-20°C for 5-6 days, and remove dead fish during the cultivation process. Seedlings and residues; wherein, the diameter of the circular fiberglass tank is 2-3m, and the height is 40-50cm;

[0014] 2. After the larvae are cultivated in the open, feed the compound feed with a diameter of ≤80 μm to induce the larvae to eat under the light intensity of 10-100 Lux, the light time of 6-12 hours / day, and the temperature of 18-22°C. 4 times;

[0015] 3. After the larvae are attracted by the compound feed for 2-3 days, they are fed 8-10 times a day, and the daily feeding amount is 2%-3% of th...

specific Embodiment approach 2

[0020] Specific embodiment two: the difference between this embodiment and specific embodiment one is: in step one, the circular glass fiber reinforced plastic tank is disinfected with povidone iodine. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0021] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 or 2 is that in step 1, the live bait is cultivated in the open for 6 days at a temperature of 18°C. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to an early-stage domestication and cultivation method of paddlefish seedlings, and relates to the early-stage domestication and cultivation method of fish seedlings. The technical problems that the mortality of paddlefish is high, the operation is complicated, the cost is higher, and the popularization is uneasy according to the traditional fish seedling cultivation method are solved, thereby providing the early-stage domestication and cultivation method of paddlefish seedlings. The method comprises the following steps that larval paddlefish seedlings are cultivated with live baits for 5-6d, and then are domesticated and bred with cultivated a compound feed, and simultaneously the breeding density and other environmental factors are controlled until the seedling weight is up to 1.5 to 2g and the seedling length is up to 4 to 5cm to complete the early-stage domestication and cultivation of paddlefish seedlings. The cultivated seedlings have good quality, and the survival rate can be increased by more than 50%. The method provided by the invention has the advantages of simplicity in operation, low cost, easiness in popularization and the like, and is applied to the field of aquatic product breeding.

Description

technical field [0001] The invention relates to a method for early domestication and cultivation of fish fry. Background technique [0002] Polyodon spathula (polyodon spathula) belongs to the order Sturgeoniformes, the family Belugaidae, and the genus Polyodon spathula. It is an excellent large-scale freshwater economic fish native to the Mississippi River Basin in North America. It has the characteristics of strong adaptability, fast growth, feeding on zooplankton, low production cost, can be cultured in reservoirs, high fishing rate and high economic value. It is an improvement Fishery ecosystems and fish farming species that optimize the allocation of fishery resources. Since the introduction of the sturgeon from the United States in 1988, the breeding industry of the sturgeon has developed rapidly in my country and has been cultivated in more than ten provinces and municipalities across the country, with remarkable economic and social benefits. Acipenser acipenser is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 吴文化孙大江曲秋芝张莹王念民纪锋
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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