Composite microbial preparation for aquaculture and method

Abstract

The invention discloses a composite microbial preparation for aquaculture and method. The composite microbial preparation comprises the compositions of, by mass, 0.8-2% of photosynthetic bacteria powder, 1-3% of bacillus subtilis powder, 0.5-1% of lactic acid bacteria powder, 0.5-1.5% of nitrifying bacteria powder, 1.5-4.8% of bdellovibrio bacteria powder, 0.5-1% of saccharomycete bacteria powder,1.6-2.25% of multi-vitamins and 84.45%-93.6% of carriers. The preparation method comprises the three steps of fermentation, bacteria powder preparation and preparing of the preparation. The compositemicrobial preparation can be used after amplification cultureor directly sprayed. When the composite microbial preparation is applied to the aquaculture industry, nitrite, ammonia nitrogen and virosin which are in water are decomposed by strains symbiosis and enzymatic hydrolysis, so that the effects of purifying water quality and lowering pH are achieved, the incidence rate of cultured organismscan be greatly reduced, the income of aquaculturists is improved, and green and healthy aquaculture is achieved.

Description

technical field [0001] The invention relates to a compound microbial preparation and method, in particular to a compound microbial preparation and method for aquaculture. Background technique [0002] Composite microbial preparations are microbial preparations made from two or more beneficial microbial strains that are not antagonistic to each other. Beneficial bacteria use their own physiological metabolism to process organic matter in water, decompose ammonia nitrogen, nitrite, hydrogen sulfide and other adverse factors in water, purify water quality, solve water quality problems caused by various toxins, reduce the risk of breeding animals, and effectively inhibit breeding The occurrence of animal symptoms reduces the need for antibiotics in farmed animals, and the interaction of beneficial bacteria in compound biological preparations is used to achieve healthy farming. In addition, after the action of beneficial bacteria, a large number of good beneficial bacteria group...

AI Technical Summary

Problems solved by technology

[0003] The common problems in the aquaculture industry are: the alkalinity of the aquaculture water is too high or too strong, the content of ammonia nitrogen and nitrite is high; due to the existence of the aforementioned harmful substances in the water body, there are often algal blooms in the aquaculture ponds. , resulting in excessive water color, blackening, redness, turbidity and other aging phenomena, which in turn promotes the breeding of a variety of toxic pathogenic bacteria in the water body, such as Aeromonas hydrophila, Vibrio, Escherichia coli, Streptococcus, etc.; thus causing breeding animals For example, red legs, blind eyes, and rotten limbs appear in shrimp; black gills, swollen gills, rotten gills, blind eyes, and broken whiskers appear in sea fish and freshwater fish; and other sea cucumbers, shellfish, etc. The survival rate is low; and then lead to low biological immunity, disease and fatality rate higher than 20%, seriously affecting the output of aquaculture, increasing the risk of the aquaculture industry, causing a large loss of manpower and material resources; therefore, there is an urgent need for an aquaculture Compound microbial preparation and method