Method for preventing and treating anorexia of fish

A technology for fish and fish ponds, applied in the field of microbial inoculum products, can solve the problems of unsatisfactory fish anorexia prevention and control methods, and achieve the effect of improving water quality aging and water quality turbidity adjustment

Inactive Publication Date: 2020-11-13
天津开发区坤禾生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] To sum up, the current prevention and control methods for fish anorexia are generally not ideal. After continuous exploration and research by our company's technical staff, we deeply analyzed the causes of fish death and found a combination of probiotics to prevent and control fish. anorexia complex

Method used

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  • Method for preventing and treating anorexia of fish
  • Method for preventing and treating anorexia of fish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A method for treating anorexia in fish, wherein the composite bacterial agent includes Bacillus licheniformis MES 816 bacterial powder and Bacillus amyloliquefaciens MES 812 bacterial powder, the mass ratio of the two is 1:1; in the composite bacterial agent, the bacterial powder of Bacillus amyloliquefaciens The number of effective viable bacteria is not less than .0×10 10 cfu / g, the number of effective viable bacteria in Bacillus licheniformis fermentation powder is not less than 1.0×10 10 cfu / g;

[0046] In the compound microbial agent, Bacillus amyloliquefaciens and Bacillus licheniformis are respectively cultured in shake flasks, cultured in primary seeds, cultured in secondary seeds, fermented, concentrated, and spray-dried to obtain corresponding bacterial powders, which can be mixed in proportion.

[0047] In the treatment of anorexia in fish:

[0048] (1) Test time and place:

[0049] Carried out in 2 open-air ponds of Jianxin Fishing Ground in Wangwenzhuang...

Embodiment 2

[0061] In the prevention of anorexia in fish:

[0062] (1) Test time and place

[0063] Carried out in 2 open-air ponds of Jianxin Fishing Ground in Wangwenzhuang Town, Tianjin City, the areas of the 2 ponds were 30 mu (1#) and 50 mu (2#) respectively, and the average water depth was 1.5 meters during the test.

[0064] (2) Test pond conditions

[0065] The two ponds are polyculture fish ponds dominated by grass carp, and the conditions of seedling release, feeding and water intake in the two ponds are basically the same. Before the experiment started, the two ponds were dominated by green algae and diatoms, supplemented by cryptophytes, and a small amount of euglena and cyanobacteria. Both ponds had normal feeding before the start of the experiment.

[0066] (3) Test plan

[0067] 1# is the control pond, only using commercially available "EM bacteria" or "photosynthetic bacteria" before the start of the test.

[0068] 2# is the test pond. From the beginning of the test, ...

Embodiment 3

[0079] Aquarium test:

[0080] (1) Purpose of the test

[0081] Through this experiment, it is determined which bacterial agent has the best effect on improving "old water" between Bacillus amyloliquefaciens, Bacillus licheniformis and two composite bacterial agents.

[0082] (2) Test time and place

[0083] The experiment was carried out on the second floor of the experimental building of the group company from July 1 to July 15, 2018.

[0084] (3) Test plan

[0085] Collect pond water in the "Old Water" pond, set up a control group and a group applying different bacterial agents, compare the water quality changes in each group, and determine which bacterial agent has the best effect. Transparency is used as a symbol of "fat, live, tender and refreshing" water quality.

[0086] Transparency refers to the clarity of the water sample. Clean water is transparent, and the transparency will decrease when there are suspended solids (algae and impurities, etc.) and colloids in t...

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Abstract

The invention relates to a method for preventing and treating anorexia of fish. A composite microbial agent used in the invention comprises bacillus amyloliquefaciens powder and bacillus licheniformispowder, wherein a mass ratio of the bacillus amyloliquefaciens powder to the bacillus licheniformis powder is 1: 1. The powder of the composite microbial agent is put into a pond, and the bacillus amyloliquefaciens powder and bacillus licheniformis powder are matched with each other, so an obvious prevention and treatment effect on anorexia of fish is achieved; and the composite microbial agent has the characteristics of no phytotoxicity, no residues, no growth inhibition and small in dosage, and possibility is provided for diversification of medication schemes and protection of an ecologicalenvironment.

Description

technical field [0001] The invention belongs to the field of microbial bacterial agent products, and in particular relates to a composite bacterial agent for preventing and treating fish anorexia. Background technique [0002] Fish anorexia is a common occurrence in ponds in North China aquaculture areas. The aquaculture fish has no obvious changes, no typical symptoms, and no dead fish. Anorexia is mainly a manifestation of farmed fish’s inadaptability to water quality. The essence is that the water quality environment deteriorates, and harmful substances in the bottom of the water increase. Fish cannot tolerate it. [0003] Fish anorexia generally occurs in high-temperature breeding seasons, especially in high-temperature seasons, when the temperature gradually rises, it is very likely to occur. [0004] According to our experience and observation, the main causes of fish anorexia are water quality problems (such as turbid water quality, aging of cultured algae; imbalance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C12N1/20C02F101/16C02F103/20C12R1/07C12R1/10
CPCC02F3/34C12N1/20C02F2101/16C02F2101/166C02F2103/20
Inventor 刘刚顾欣燕孙海远肖培英
Owner 天津开发区坤禾生物技术有限公司
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