Novel strain of bacillus coagulans as well as microecological preparation and feed containing bacillus coagulans

Abstract

The invention discloses a bacillus coagulans strain capable of resisting streptococcus and applications of the bacillus coagulans strain. The strain is preserved in the China General Microbiological Culture Collection Center (CGMCC), and is assigned with the accession number of CGMCC No.12196. The strain is prepared into fungus powder which is added to an animal feed, the fungus powder also can beapplied as a microbial preparation for resisting streptococcus, and after the feed containing the strain is used for feeding tilapia mossambica, streptococcicosis can be effectively prevented and treated. The strain is mixed with bacillus subtilis and lactobacillus johnsonii, then a compound microbial preparation is prepared, and the compound microbial preparation can improve the growth performance of tilapia mossambica, and improve the activity of superoxide dismutase and catalase of the liver and lysozyme in serum. In addition, the fermentation broth of the strain can be adopted as a breeding environment modifier, after the fermentation liquor of the strain is sprayed to an aquaculture pond of tilapia mossambica, the quantity of streptococcus in the aquaculture water can be reduced, andnitrite in the water can be eliminated under the low oxygen condition.

Description

technical field [0001] The invention belongs to the field of feed microecology, and in particular relates to a new strain of bacillus coagulans, a microecological preparation and feed. Background technique [0002] China is the largest tilapia producer in the world, ranking first in the world in output, export volume and export value. Tilapia is the most internationally competitive freshwater aquaculture species in China, and it is also the species with the most industrialized development conditions. It has become a pillar industry in southern China and has strong development advantages in the country. However, the diseases of tilapia caused by Streptococcus agalactiae and Streptococcus iniae are easy to break out in summer and autumn. 25% to 80%, or even higher, has caused great economic losses to the tilapia aquaculture industry, and there is a growing trend. [0003] At present, in tilapia farming and production, people mainly use antibiotic chemical drugs to prevent an...

AI Technical Summary

Problems solved by technology

[0005] Nitrite poisoning has always been another difficult problem encountered in the breeding process, which often brings heavy losses to farmers

Most of the biodegradation of nitrite requires the participation of oxygen, and the current high-density farming results in insufficient oxygen in the pond. We need to develop new products that can degrade nitrite under low oxygen conditions.

[0006] At present, there is no product using Bacillus coagulans as a streptococcal antagonist in China, and the application of this bacteria in tilapia feed has not been reported

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