Pediococcus pentosaceus strain, microbial preparation and preparation method thereof

Abstract

The invention discloses a pediococcus pentosaceus strain, a microbial preparation and a preparation method thereof. The strain is collected at the China Center for Type Culture Center under the collection number of CCTCC NO: M2018109 and classified and named as SL001. When a microecological preparation prepared from the strain through a corresponding method and suitable for aquaculture is mixed infeed for feeding freshwater fishes, infection of the freshwater fishes like grass carp and crucian with fish pathogenic bacteria like aeromonas hydrophila can be quickly inhibited, rate in protectingthe freshwater fishes is greater than or equal to 70%, intestinal flora structure of the freshwater fishes can be improved, growth of the freshwater fishes can be promoted, and immunity of the freshwater fishes can be improved.

Description

technical field [0001] The invention relates to the technical field of aquatic microorganisms, in particular to a strain of Pediococcus pentosaceae, its microecological preparation and a preparation method thereof. Background technique [0002] my country has a vast area of ​​aquaculture waters. As people's demand for protein resource food increases, the development of the aquaculture industry has received more and more attention. According to the "China Aquaculture Market Survey and Development Prospect Research Report (2018 Edition)", my country's aquaculture is dominated by freshwater aquaculture, and its output accounts for more than 60%. More than 88%. In recent years, with the country's emphasis on agricultural environmental protection, the area of ​​intensive aquaculture fish ponds has expanded rapidly, and the disease outbreaks in corresponding intensive fish ponds have become more and more serious, which has become a technical bottleneck restricting the sustainable ...

AI Technical Summary

Problems solved by technology

[0008] Existing probiotics are prone to inactivation and poor stability during transportation, use and storage, thereby reducing their biological activity; some strains cannot effectively resist the effects of hydrochloric acid and bile acids after entering the digestive tract, so they cannot coloniz

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