What are the applications of Bacillus coagulans in aquaculture?

Bacillus coagulans have many important applications in aquaculture, mainly reflected in the following aspects:

Improving water quality

    Decomposing organic matter: There are a large number of residual feed, feces and other organic pollutants in aquaculture environments. Bacillus coagulans can secrete various extracellular enzymes, such as protease, amylase, and lipase, which can decompose organic matter in water and convert it into simple inorganic substances such as carbon dioxide, water, and inorganic salts, thereby reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) in water and reducing the risk of eutrophication.

    Reduce the content of ammonia nitrogen and nitrite: Ammonia nitrogen and nitrite are common harmful substances in aquaculture water bodies. Bacillus coagulans can absorb and utilize ammonia nitrogen in water through its own metabolic activities, and convert it into its own bacterial protein. At the same time, it can also convert nitrite into nitrogen through nitrification and denitrification, effectively reducing the concentration of these two substances in water and creating a healthier living environment for aquatic animals.

Regulating the intestinal health of aquatic animals

    Maintaining gut microbiota balance: The gut health of aquatic animals is crucial for their growth and immunity. After entering the intestinal tract of aquatic animals, Bacillus coagulans can competitively inhibit the growth of harmful bacteria such as Vibrio and Aeromonas, which are the main pathogens causing intestinal diseases in aquatic animals. At the same time, it can promote the proliferation of beneficial bacteria such as bifidobacteria, lactobacilli, etc., optimize the structure of intestinal microbiota, and maintain a stable and healthy state of intestinal microbiota.

    Enhancing intestinal barrier function: This bacterium can stimulate the growth and repair of intestinal mucosa in aquatic animals, enhancing the barrier function of intestinal mucosa. The intestinal mucosa is the first line of defense against harmful substances and pathogens entering the animal body, and a healthy mucosal barrier can effectively reduce the occurrence of intestinal diseases. In addition, Bacillus coagulans can also produce some bioactive substances, such as short chain fatty acids, which can provide energy for intestinal cells and further enhance the barrier function of the intestine.

    Improve feed utilization: It can produce various digestive enzymes to help aquatic animals better digest and absorb nutrients in feed. For example, proteases can break down proteins in feed, turning them into small molecule peptides and amino acids that are more easily absorbed; Starch enzymes can break down starch and increase the utilization rate of carbohydrates. By improving the digestion and absorption rate of feed, not only can it promote the growth of aquatic animals, but it can also reduce the residue of undigested feed in water and lower the risk of water pollution.

Enhance the immunity of aquatic animals

    Activate immune cells: Bacillus coagulans can stimulate the immune system of aquatic animals, activating immune cells such as macrophages, lymphocytes, etc. These activated immune cells are able to better recognize and engulf pathogens, enhancing the non-specific immune defense capabilities of aquatic animals. For example, when facing the invasion of pathogens such as bacteria and viruses, aquatic animals regulated by Bacillus coagulans can more quickly initiate immune responses and reduce the risk of infection.

    Regulating the secretion of immune factors: It can also regulate the secretion of immune factors in aquatic animals, such as interleukins, interferons, etc. These immune factors play a crucial role in immune regulation, antiviral and antibacterial processes. By regulating the secretion of immune factors, Bacillus coagulans can enhance the specific immune ability of aquatic animals, making them more effective in resisting specific pathogens.

Application methods and precautions

    Usage: There are usually two main ways of use. One method is to directly add Bacillus coagulans to the aquaculture water, usually adding 1-5 grams per cubic meter of water (with a bacterial powder content of 10-50 billion CFU/g), and the specific dosage is adjusted according to factors such as water quality and aquaculture species. Another method is to add it to aquatic feed, usually at a dosage of 0.1% -0.5% of the feed weight. The microbial agent can be evenly distributed on the surface or inside of the feed through spraying or mixing.

    Attention: When using Bacillus coagulans, it is important to choose products with reliable quality and high activity. At the same time, avoid using antibiotics together, as antibiotics may kill Bacillus coagulans and affect their effectiveness. If antibiotics must be used, Bacillus coagulans should be used after a period of discontinuation (usually 3-5 days). In addition, close attention should be paid to the water quality and the status of aquatic animals during use, and the dosage and frequency of use should be adjusted in a timely manner according to the actual situation.