AquaStar - Aquaculture Probiotics Feed
From Gut Performance Management
AquaStar is the most complete aquaculture probiotics range on the market for hatchery, feed mill and farm sectors. The multi-species approach builds on synergies and complementary modes of action between different bacterial species, and ensures users are provided with maximum benefits.
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Product Details
The Science Behind AquaStar® – Mode of Action
Pathogen inhibition
The strains in AquaStar® are capable of inhibiting a wide range of aquaculture pathogens, both Gram-negative and Gram-positive (Table 1).
To successfully colonize the gut, probiotics must be able to adhere to the intestinal epithelial cells, enterocytes. Once this is achieved, they can competitively exclude invading pathogens, and interact with the host immune system. AquaStar® strains can successfully attach to fish enterocytes, demonstrating their effective colonizing ability (Figure 1).
By controlling pathogens and positively modulating the immune system, AquaStar® application can improve the disease resistance of aquatic animals. Figure 2 shows the survival of white shrimp (Litopenaeus vannamei), with and without AquaStar®, after a Vibrio parahaemolyticus challenge.
Bacillus spp. are well known for their ability to produce enzymes. In the gut these can contribute to better feed digestibility and reduced FCR. If applied in the water they can break down organic matter in the environment, facilitating the release of highly digestible components and preventing the accumulation of toxic sediments. This effect can be further stimulated by the addition of enzyme cocktails, as in AquaStar® PondZyme.
However, the ability of Bacillus spp. to produce enzymes is highly variable, and the strain chosen for AquaStar® products demonstrated the highest combined protease, amylase and cellulase activity (Figure 3).
Ammonia (NH3), nitrite (NO2-) and nitrate (NO3-) are all toxic to aquatic animals. The bioremediation strains in AquaStar® Pond and AquaStar® PondZyme can significantly reduce these metabolites, in a range of environmental conditions (Figure 4).
Hydrogen sulfide (H2S) is generated as organic matter decomposes, and is extremely toxic in very low concentrations. AquaStar® strains can reduce the abundance of H2S in water and sediments (Figure 5).
Benefits
- Improves survival
- Inhibits pathogens
- Promotes disease resistance through immunomodulation
- Improves gut barrier function
- Improves growth performance
- Improves water quality
- in part by reducing toxic metabolites e.g. ammonia, nitrite, nitrate & hydrogen sulfide
- Reduces organic matter in pond environments
- Improves pond sediments
- Increases productivity
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