Cultivation method of pelteobagrus fulvidraco fry

A breeding method and technology of yellow catfish, applied in fish farming, application, climate change adaptation, etc., can solve problems such as low survival rate and easy disease of yellow catfish fry

Inactive Publication Date: 2022-03-22
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous expansion of the breeding scale, the demand for yellow catfish fry continues to rise. Factory production is conducive to improving efficiency, but the problems of easy disease and low survival rate of yellow catfish fry are difficult to overcome

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A method for cultivating yellow catfish fry, comprising the steps of:

[0045] (1) Choose an area of ​​40m 2 Indoor breeding ponds, filled with water to a water depth of 1.4m, and 800 fish / m 2 The density is put into the nursery pool;

[0046] (2) Start to feed the fry after 2 days, and feed 3 times a day, the daily feeding time is 6:00, 14:00 and 20:00 respectively, and the weight ratio of the feed fed each time is 2: 3:4; when the average weight of fry is less than 5g, the daily feed amount is 2% of the total mass of fry; when the average weight of fry is 5-20g, the daily feed amount is 8% of the total mass of fry; When the average body weight of the fish is > 20g, the amount of feed fed every day is 12% of the total mass of fry;

[0047] (3) after fry was put in for 5 days, each nursery pond was sterilized with quicklime of 800g, and was sterilized once every 10 days thereafter;

[0048] (4) Change the water after 4 days after the fry is put in, and then change t...

Embodiment 2

[0050] A method for cultivating yellow catfish fry, comprising the steps of:

[0051] (1) Choose an area of ​​60m 2 Indoor breeding ponds, filled with water to a water depth of 1.0m, and 700 fish / m2 of the yellow catfish fry that have been filmed for 4 days 2 The density is put into the nursery pool;

[0052](2) After 4 days, the fish fry started to be fed with feed, 4 times a day, and the daily feeding time was 6:30, 12:30, 17:30 and 22:30 respectively, and the weight of the feed fed each time The ratio is 2:4:3:4; when the average weight of fry is less than 5g, the amount of feed fed every day is 4% of the total mass of fry; when the average weight of fry is 5-20g, the amount of feed fed every day is 5% of the mass; when the average weight of the fry is > 20g, the daily feed amount is 8% of the total mass of the fry;

[0053] (3) after fry was put in for 7 days, each nursery pond was sterilized with quicklime of 1200g, and then sterilized once every 8 days;

[0054] (4) ...

Embodiment 3

[0056] A method for cultivating yellow catfish fry, comprising the steps of:

[0057] (1) Choose an area of ​​50m 2 Indoor breeding ponds, filled with water to a water depth of 1.2m, and 750 fish / m2 of the yellow catfish fry that have been filmed for 4 days 2 The density is put into the nursery pool;

[0058] (2) After 3 days, the fish fry start to be fed with feed, 3 times a day, and the daily feeding time is 7:00, 15:00 and 21:00 respectively, and the weight ratio of the feed fed each time is 3: 4:4; when the average weight of fry is less than 5g, the daily feed amount is 3% of the total mass of fry; when the average weight of fry is 5-20g, the daily feed amount is 6% of the total mass of fry; When the average body weight of the fish is > 20g, the daily feed amount is 11% of the total mass of fry;

[0059] (3) After the fish fry was put in for 6 days, each nursery pond was disinfected with quicklime of 1000g, and then disinfected once every 9 days;

[0060] (4) Change th...

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Abstract

The invention relates to the technical field of yellow catfish cultivation. The invention provides a pelteobagrus fulvidraco fry breeding method. The pelteobagrus fulvidraco fry breeding method comprises the following steps that 1, fry are put into a nursery pond according to the density of 700-800 / m < 2 >; (2) 2-4 days after the fries are put, starting to feed the fries with feed for 3-4 times every day; (3) disinfecting the fries 5-7 days after the fries are put, and then disinfecting once every 8-10 days; 4, water is changed 4-6 days after the fry are put, and then water is changed once every 3-5 days. The seedling culture method adopts an industrialized seedling culture method, and is large in culture density and high in survival rate. The seedling growing scale can be effectively expanded to meet the growing seedling growing requirements. And meanwhile, the method is not limited by environmental factors and has obvious economic benefits.

Description

technical field [0001] The invention relates to the technical field of yellow catfish cultivation, in particular to a cultivation method of yellow catfish fry. Background technique [0002] Yellow catfish is widely distributed in the Pearl River, Minjiang River, Xiangjiang River, Yangtze River, Yellow River, Haihe River, Songhua River and Heilongjiang and other water systems. Yellow catfish mostly inhabit shallow water areas around lakes with slow-flowing aquatic plants and rivers entering the lake. They live at the bottom of the lake, especially like to live in still water or slow-flowing shoals, where there is a lot of humus and mud. Omnivorous. Under natural conditions, animal feed is the main feed. The fry stage feeds on zooplankton, while adult fish feed on insects and their larvae, small fish, shrimps, snails, and mussels, as well as plant debris. [0003] Yellow catfish has a high degree of recognition among consumers. At present, the farming volume of yellow catfish...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor张磊王杰王曼程飞谢松光
OwnerINST OF AQUATIC LIFE ACAD SINICA