Bacillus paralicheniformis C28-2 from deep sea as well as microecological preparation and application of bacillus paralicheniformis C28-2

The invention relates to bacillus paralicheniformis C28-2 as well as a microecological preparation and application thereof. The bacillus parlicheniformis C28-2 is classified and named as bacillus parlicheniformis, and the preservation number of the bacillus parlicheniformis C28-2 is CGMCC (China General Microbiological Culture Collection Center) NO.27563. The bacillus parlicheniformis C28-2 is named as bacillus parlicheniformis. The strain has an inhibition effect on gram-negative bacteria and gram-positive bacteria. The microecological preparation prepared from the strain can effectively improve the survival rate of tilapia mossambica and prawns, and can effectively improve the disease resistance of aquaculture animals. The compound leavening agent prepared from the strain can reduce the content of neutral detergent fibers and acid detergent fibers of plants, can accumulate high-content organic acid, improve the quality of plant feed, improve the feed intake and utilization rate of animals on the plant feed,