Bacillus licheniformis

Bacillus licheniformis Feed Grade

Bacillus licheniformis is a Gram-positive, spore-forming bacterium that has significance as a probiotic feed additive. It is widely recognized for its ability to produce a range of bioactive metabolites, including antimicrobial peptides and enzymes, contributing to improved growth performance, enhanced immune function, and better intestinal health in livestock and poultry.

Specifically, Bacillus licheniformis is a rod-shaped bacterium measuring approximately 1.0–3.0 µm in length and 0.6–0.8 µm in diameter, known for its ability to produce a variety of industrially important enzymes such as protease, amylase, and cellulase. The spore-forming nature of B. licheniformis offers high stability during feed processing and storage, as well as resistance to gastric acid and bile salts during gastrointestinal transit. Research has demonstrated that B. licheniformis supplementation promotes the growth of beneficial bacteria (such as Lactobacillus) while inhibiting pathogenic bacteria (including E. coli and Salmonella), and enhances immune function by increasing serum antibody levels and improving intestinal barrier integrity.

Bacillus licheniformis is carefully manufactured under strict quality control to maintain consistent viability and stability. It is typically available as a powder or granular formulation with a guaranteed minimum viable cell count. The product is widely used in poultry, swine, ruminant, and aquaculture operations to support gut health, enhance disease resistance, and improve overall production performance.