Probiotic Bacillus subtilis (Feed Grade)

Spore-forming probiotic bacterial culture used in feed for competitive exclusion of pathogens, enzyme secretion in the gut lumen, and intestinal microbial modulation. The spore form survives pelleting and extrusion temperatures that destroy non-sporulating probiotics.

Light tan to brown free-flowing powder with a mild fermentation aroma. Standard products are stable for 24 months under typical feed warehouse conditions.

We supply feed-grade Bacillus subtilis from manufacturers in China holding ISO, FAMI-QS, and other certifications relevant to the product and production.

Common market grades include 10 billion, 20 billion, and 100 billion CFU per gram, with single-strain or multi-strain (subtilis plus licheniformis or pumilus) formulations. Customer-specified CFU counts can be produced.

Bulk and reduced-MOQ shipments. Batch-level COA covering CFU count, strain identity, moisture, heavy metals, and pathogen absence.

Bacillus subtilis and its close relatives are Gram-positive, spore-forming bacteria that survive feed processing as dormant endospores and germinate in the intestinal tract. Once germinated, they produce antimicrobial peptides (subtilin, surfactin), secrete digestive enzymes (proteases, amylases, lipases, cellulases), and compete with pathogens for adhesion sites and nutrients.

The spore form is the critical commercial advantage over Lactobacillus and Bifidobacterium probiotics for feed applications. Lactobacilli are vegetative cells that lose 90 percent or more of viability through pelleting at 75 to 85 degrees C, while Bacillus spores are typically 90 percent stable through the same conditioning.

Strain selection determines the spectrum of activity. Some subtilis strains are more enzyme-focused (used in feed cost reduction), others are more antimicrobial peptide-focused (used in antibiotic alternative programs). Commercial products specify both strain identity and the principal mode of action.

Approved as a zootechnical feed additive in the EU under specific strain registrations, and as a probiotic feed ingredient globally.

• Broiler and layer feeds for competitive exclusion of Clostridium and Salmonella
• Piglet weaner feeds for post-weaning gut microbiome establishment
• Sow lactation diets for piglet seeding and reduced diarrhea
• Calf milk replacers and starter feeds
• Aquaculture feeds and pond water treatments for shrimp and finfish
• Antibiotic-alternative programs in all major livestock species
• Component of multi-strain probiotic premixes
• Companion animal diets for digestive health