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Composition and application for preventing bacterial enteropathy in deep-sea cultured fish

An intestinal disease and composition technology, which is applied in the field of marine aquaculture disease prevention and control, can solve problems such as difficulty in finding diseases, inability to realize real-time observation of cultured fish, etc., and achieves the advantages of reducing manpower and material resources, improving cumbersome production procedures and not easy to lose. Effect

Active Publication Date: 2021-12-03
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, deep-sea aquaculture cannot realize real-time observation of aquaculture fish due to factors such as the aquaculture site is far away from the coastline and the depth of aquaculture water, which has caused certain difficulties for timely detection of diseases.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] At first in the aquarium experimental system of this laboratory, adopt the method of the present invention to carry out the experiment of medicine bait making and throwing something to feed Xu's flat scorpionfish. In the experiment, six fiberglass barrels with a diameter of 90 cm and a height of 110 cm were used to simulate cages for aquaculture in deep and open seas. Among them, 3 barrels are set as Group A, and the barrels are respectively filled with 500L of seawater and 50 juveniles of Xu's flat carp with an average weight of about 40g, and are cultured in open flowing water. The other 3 barrels are set as group B, and only 500L of seawater is contained in the barrels, and the flowing water method is adopted.

[0024] The composition formula and mass parts used in the experiment are: 30 parts of berberine tannin, 10 parts of verbena ethanol extract, 20 parts of rhubarb superfine powder of 200-300 mesh, 10 parts of cypress superfine powder of 200-300 mesh , 15 parts...

Embodiment 2

[0029] A deep-water anti-wind and wave cage breeding base in Changdao County, Shandong Province has used large-scale circular anti-wind and wave cages with a circumference of 40m and a depth of 7m to breed Scorpius xushi for more than ten years. However, from 2010, during the period of high water temperature from July to October every year, the scorpionfish cultured in the net cages have a large area of ​​enteritis disease. Among them, more than 60 culture cages infected with enteritis disease were found in 2014-2016. %, the daily mortality rate of each net cage is 0.03% to 0.5%, and the death time can last for more than 3 months, causing serious economic losses to the farmers. Through two years of epidemiological investigation and etiological research, it was confirmed that the bacterial enteritis disease of flat scorpionfish in this breeding area was mainly caused by the infection of Photobacterium mermaidus and Vibrio rotifer.

[0030] In 2017, 5 net cages were selected in ...

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PUM

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Abstract

The invention relates to a composition and application for preventing bacterial intestinal diseases of deep-sea cultured fish, and belongs to the technical field of disease prevention and control of seawater culture. The composition and mass parts of the composition are: 20-30 parts of berberine tannin, 8-10 parts of verbena ethanol extract, 15-20 parts of 200-300 mesh rhubarb superfine powder, 200-300 mesh small 10-15 parts of cypress superfine powder, 10-15 parts of Santaihua superfine powder of 200-300 mesh, 10-15 parts of k-type carrageenan, and 1-2 parts of calcium citrate. The composition is used to prepare medicinal bait for preventing bacterial intestinal diseases of deep-sea cultured fish. When the water temperature is high in summer and autumn, the medicinal bait should be fed for 5-7 days every 15-20 days, which can effectively prevent Bacterial enteric disease in pelagic fish cultured.

Description

technical field [0001] The invention belongs to the technical field of mariculture disease prevention and control, and in particular relates to a composition and an application for preventing bacterial intestinal diseases of deep-sea cultured fish. Background technique [0002] Bacterial intestinal disease is one of the most common diseases in fish, and almost all marine and freshwater cultured fish can have intestinal diseases. When the symptoms of fish infected with intestinal diseases are mild, they usually show decreased vitality, lack of food intake, and slow growth. class death. Severe intestinal diseases can even cause extremely high mortality of farmed fish in a short period of time, which is one of the most serious diseases that endanger the fish farming industry. During the breeding process, there are many reasons for fish intestinal diseases, but most of them are caused by the infection of pathogenic bacteria through the mouth. For seawater fish, various pathog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K31/4375A61K36/855A23K10/30A23K20/10A23K20/163A23K20/24A23K50/80A61P31/04A61P1/00A61K31/194
CPCY02A40/818
Inventor 张正姜勇于永翔王印庚廖梅杰荣小军
Owner YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
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