{"id":6125,"date":"2025-09-05T08:59:49","date_gmt":"2025-09-05T01:59:49","guid":{"rendered":"https:\/\/truonghaitien.com\/?p=6125"},"modified":"2025-09-05T09:00:47","modified_gmt":"2025-09-05T02:00:47","slug":"bacillus-velezensis-the-biological-weapon-for-antibacterial-action-and-gut-balance","status":"publish","type":"post","link":"https:\/\/truonghaitien.com\/en\/bacillus-velezensis-the-biological-weapon-for-antibacterial-action-and-gut-balance\/","title":{"rendered":"Bacillus velezensis \u2013 The \u201cBiological Weapon\u201d for Antibacterial Action and Gut Balance"},"content":{"rendered":"

Bacillus velezensis<\/em> is a powerful ally in aquaculture due to its ability to produce a wide range of natural antibiotics and digestive enzymes. As a Gram-positive, spore-forming bacterium, B. velezensis<\/em> exhibits exceptional resilience to harsh environmental conditions, tolerating salinity levels up to 60\u2030, a broad pH range from 5 to 9, and temperatures between 25\u201337\u00b0C. Its capacity to biosynthesize over 15 types of antibiotics and more than 20 different enzymes makes this bacterium a versatile biological factory, ready to perform effectively in diverse farming environments.<\/span><\/p>\n

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Benefits of Bacillus velezensis<\/em> in Aquaculture<\/strong><\/span><\/p>\n

Strong Antibacterial Activity<\/strong><\/span><\/h3>\n

B. velezensis<\/em> produces a diverse range of antibacterial compounds belonging to three main groups: lipopeptides (such as fengycin, surfactin, iturin A), polyketides (including oxydifficidin, difficidin), and bacteriocins (like amylocyclicin).<\/span>
\nThese compounds act through multiple mechanisms: disrupting bacterial cell membranes, inhibiting protein synthesis at the ribosome level, and creating pores in the membranes of pathogenic bacteria<\/span><\/p>\n

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Notably, oxydifficidin exhibits high efficacy against Vibrio parahaemolyticus<\/em> with a minimum inhibitory concentration (MIC) of only 4 \u00b5g\/mL, while fengycin strongly inhibits Aeromonas hydrophila<\/em>.<\/span><\/p>\n

Organic Matter Decomposition<\/span><\/h3>\n

Bacillus velezensis<\/em> produces over 20 different enzymes, notably protease, amylase, lipase, and cellulase, which rapidly break down organic matter such as sludge, algal residues, and leftover feed in aquaculture ponds.<\/span>
\nWhen included in feed, B. velezensis<\/em> secretes large amounts of extracellular enzymes with high activity that effectively support digestion and improve feed conversion efficiency.<\/span><\/p>\n

Additionally, the enzyme system of B. velezensis<\/em> helps combat harmful bacterial populations through a Quorum Quenching mechanism that disrupts biofilm defenses, combined with the production of potent antibacterial compounds to eliminate pathogens.<\/span><\/p>\n

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Figure. High concentrations of <\/strong>Bacillus velezensis<\/strong><\/em> inhibit <\/strong>Vibrio<\/strong><\/em> spp.<\/strong><\/span>
\nKondee Chauyod et al.<\/em> (2022)<\/span><\/p>\n

Supporting Gut Health and Enhancing Growth Performance<\/span><\/h3>\n

Bacillus velezensis<\/em> establishes a balanced gut microbiota through three mechanisms: eliminating pathogenic bacteria (reducing Vibrio<\/em> and Aeromonas<\/em> by 90%), stimulating the proliferation of beneficial bacteria (increasing Lactobacillus<\/em> and Bifidobacterium<\/em> threefold), and protecting the intestinal mucosa (enhancing mucin production by 40% through activation of the MUC2<\/em> gene).<\/span>
\nAs a result, the animals show significant improvements in digestion efficiency and nutrient absorption.<\/span><\/p>\n

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Table. Effects of different supplementation levels of B. velezensis on the growth performance and survival rate of whiteleg shrimp (Litopenaeus vannamei). Supplementation levels in feed: BV1 (105<\/sup> CFU\/g), BV2 (107<\/sup> CFU\/g), and BV3 (109<\/sup> CFU\/g).<\/span><\/p>\n

With its outstanding antibacterial properties, digestive support, and microbiota balancing abilities, Bacillus velezensis<\/em> truly represents an optimal biological solution for sustainable aquaculture<\/span><\/p>\n

 <\/p>\n

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The Bacillus velezensis<\/em> product from Truong Hai Tien Co., Ltd. not only meets high technical standards but also delivers practical effectiveness, helping farmers minimize disease risks, increase productivity, and move toward safe aquaculture practices without the overuse of antibiotics. This is a reliable choice for those seeking to invest in modern, environmentally friendly biological technology solutions.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Bacillus velezensis is a powerful ally in aquaculture due to its ability to produce a wide range of natural antibiotics and digestive enzymes. As a Gram-positive, spore-forming bacterium, B. velezensis exhibits exceptional resilience to harsh environmental conditions, tolerating salinity levels up to 60\u2030, a broad pH range from 5 to 9, and temperatures between 25\u201337\u00b0C. […]<\/p>\n","protected":false},"author":2,"featured_media":6134,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[91],"tags":[],"yoast_head":"\nBacillus velezensis \u2013 The \u201cBiological Weapon\u201d for Antibacterial Action and Gut Balance | Tr\u01b0\u1eddng H\u1ea3i Ti\u1ebfn<\/title>\n<meta name=\"robots\" content=\"index, follow\" \/>\n<meta name=\"googlebot\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta name=\"bingbot\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/truonghaitien.com\/en\/bacillus-velezensis-the-biological-weapon-for-antibacterial-action-and-gut-balance\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bacillus velezensis \u2013 The \u201cBiological Weapon\u201d for Antibacterial Action and Gut Balance | Tr\u01b0\u1eddng H\u1ea3i Ti\u1ebfn\" \/>\n<meta property=\"og:description\" content=\"Bacillus velezensis is a powerful ally in aquaculture due to its ability to produce a wide range of natural antibiotics and digestive enzymes. 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