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A method to help peltago catfish fry pass through the sensitive period quickly and effectively improve the survival rate

A technology for yellow catfish and sensitive period, applied in fish farming, application, climate change adaptation, etc., can solve the problems of unreliable biological source of bait at the bottom of the pond, aggravate the risk of disease and high mortality in the sensitive period of fry, and achieve the goal of reducing foraging food consumption, improve immunity, and increase survival rate

Active Publication Date: 2021-04-23
INST OF AQUATIC LIFE ACAD SINICA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this stage, the habitat and feeding habits of the fry of the peltago catfish have undergone drastic changes, resulting in extremely high mortality, and the biological source of bait at the bottom of the pond is unreliable and unstable, which intensifies the risk of disease in the sensitive period of the fry

Method used

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  • A method to help peltago catfish fry pass through the sensitive period quickly and effectively improve the survival rate

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Experimental program
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Effect test

Embodiment 2

[0032] On May 23, 2016, in Lingqiao Township, Huaiyin District, Huai'an, Jiangsu Province, a 5.2-acre pond of yellow catfish fry was selected, and the quicklime dry method was used to clear the pond; after 7 days of clearing the pond, fermented and sterilized manure was applied to the pond, and then injected into 80 mesh Sieve the water with silk to make the depth of the pool water reach 50cm; after one week, cut down the small grass on the edge of the pond, bundle it into 2.5kg / handle grass handles, and put the grass handles evenly on the surface of the pond, and the amount of planting is 13 handles / mu ; On June 9, 2016, 1 million fish fry were put into the pond; after the fish fry entered the pond, about 10 grass handles were added as needed; after the fish fry stabilized for 5 days, they gathered in the grass grass area of ​​Xiaopeng and began to tame the fish fry Special powder for yellow catfish, and then gradually transition to No. 0 extruded feed for domesticating yellow...

Embodiment 3

[0034] On May 18, 2017, in Lingqiao Township, Huaiyin District, Huai'an, Jiangsu Province, a pond of 4.5 mu of yellow catfish fry was selected, and the quicklime dry method was used to clear the pond; after 7 days of clearing the pond, the pond was made with a fertilizer and water product from a certain manufacturer, and then injected into an 80-mesh sieve Filter the water with silk to make the depth of the pool water reach 50cm; after a week, cut down the small grasses beside the pond, bundle them into 3kg / handle grass handles, and put the grass handles evenly on the surface of the pond at a rate of 10 handles / mu; 2017 On June 5, 2009, 1.2 million fish fry were put into the pond; after the fry entered the pond, about 8 grass handles were added as needed; after the fry stabilized for 3 days, they began to tame the special powder for fish fry and yellow catfish, and then gradually transitioned to domestication. No. 0 extruded feed is specially used for eating yellow catfish; aft...

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Abstract

The invention discloses a method for helping yellow catfish fry quickly pass through the sensitive period and effectively improving the survival rate, belonging to the field of aquaculture. The breeding management method is as follows: ① Pond preparation and small peng grass put in; ② Fry go to the pond and tame; ③ Maintain the ecological stability of the pond. The present invention has the following advantages and positive effects: ① Utilize the small canopy on the surface of the water body to attract enough bait in the area to attract the fry to float on the surface of the water body to feed, helping the fry to pass through the sensitive period quickly, and effectively improving the survival rate of the fry; ② Effectively avoiding the feeding habits of the fry The risk of disease brought by the bait organisms at the bottom of the pond; ③Improve the immunity of fry and enhance the resistance of fry to diseases; ④The operation method is simple and clear, the materials are easy to obtain, and it has the prospect of being demonstrable and easy to promote; ⑤It is an environmentally friendly technology Developed with a good safety record and no potential environmental risks.

Description

technical field [0001] The invention relates to the aquaculture technology, in particular to a method for helping peltrigid fish fry to quickly pass through the sensitive period and effectively improving the survival rate. Background technique [0002] The yellow catfish belongs to the Silurformes (Silurformes), the family (Bagride), the yellow catfish ( Pelteobagrus ), endemic to East Asia, is a common carnivorous bottom-dwelling fish in rivers and lakes in my country. Its tender meat, delicious taste and no intermuscular thorns have won the favor of consumers. In recent years, it has been developed into a famous and high-quality freshwater aquaculture species with high economic value. However, in the current process of artificial breeding of yellow catfish, the fry mortality rate is extremely high. The fry breeding factories all overcome the problem of high mortality by increasing the number of parents and increasing the number of eggs laid, which not only increases the l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 张磊王一亭程飞谢松光
Owner INST OF AQUATIC LIFE ACAD SINICA
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