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Streptomyces lateritius Z1-26, microecological preparation and preparation method of microecological preparation

A technology of Streptomyces rhodozyma and microecological preparations, applied in the field of Streptomyces rhodozyma Z1-26, microecological preparations and preparation thereof

Active Publication Date: 2021-11-09
HUNAN NORMAL UNIVERSITY
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  • Description
  • Claims
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Problems solved by technology

[0006] However, the application of Streptomyces rubrum in aquaculture is relatively rare, especially as a probiotic in the prevention and control of fish diseases.

Method used

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  • Streptomyces lateritius Z1-26, microecological preparation and preparation method of microecological preparation
  • Streptomyces lateritius Z1-26, microecological preparation and preparation method of microecological preparation
  • Streptomyces lateritius Z1-26, microecological preparation and preparation method of microecological preparation

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Embodiment Construction

[0060] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0061] The chemical reagents used in the examples of the present invention were obtained through conventional commercial channels unless otherwise specified.

[0062] (1) Screening of Streptomyces rubrum Z1-26 and determination of antibacterial spectrum

[0063] The soil samples from Hebei Province were mixed well in sterile water, spread on the Gowell plate after gradient dilution, and cultured at 30°C for 5 days. The growth status of the strains was observed and single clones of actinomycetes samples were picked and inoculated into new cultures. Based on the purification of the picked strains, fish pathogenic bacteria Aeromonas hydrophila (Aeromonas hydrophila), Aeromonas temperate (Aeromonassobria), Aeromonas caviae (Aeromonas caviae), Aeromonas victoria ( Aeromonas veronii), Aeromonas allosaccharophila, Edwardsiella tarda, Erwinia spp., Citrobacter...

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Abstract

The invention relates to streptomyces lateritius Z1-26, a microecological preparation and a preparation method of the microecological preparation, the streptomyces lateritius Z1-26 is preserved in the China Center for Type Culture Collection, and the strain preservation number is CCTCC NO: M 2021705. The microecological preparation prepared by fermenting the streptomyces lateritius Z1-26 is suitable for aquaculture, acts on freshwater fishes such as crucian carps, grass carps and carps in the form of a feed additive, has the protection rate of 60%, particularly has a remarkable effect of resisting infection of aeromonas hydrophila on the freshwater fishes, and can be used as a feed additive for aquaculture.Meanwhile, the growth performance and the immunocompetence of the freshwater fishes can be effectively improved.

Description

technical field [0001] The invention relates to a microorganism Streptomyces rubrum, in particular to a Streptomyces rubrum Z1-26 strain, a micro-ecological preparation and a preparation method thereof. Background technique [0002] In recent decades, my country's fish farming industry has developed rapidly, and the scale and intensification level of fish farming have been rapidly expanded and improved. However, with the rapid expansion of the number and density of farmed fish, the residual bait and excrement cannot be treated in time, and the water body has not been replaced in time due to the deterioration of water quality, resulting in frequent occurrence of various diseases in farmed fish. Bacteria, as the main pathogens of farmed fish, can cause about 57.6% of biological source diseases, causing huge economic losses to the farming industry. [0003] At present, the prevention and treatment of bacterial diseases in fish farming is mainly the application of antibiotics. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20A61K35/741A61P31/04A61P37/04A23K50/80A23K10/18C12R1/465
CPCC12N1/20A61K35/741A61P31/04A61P37/04A23K50/80A23K10/18Y02A40/81
Inventor 夏立秋杨亚会易敢峰丁学知彭雅楠翟峰
Owner HUNAN NORMAL UNIVERSITY
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