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The first probiotic-coated feed launched on the Vietnamese market Marc Campet, ADM Animal Nutrition

Probiotics have become a common sight in Southeast Asian shrimp farms as rearing practices have gradually intensified. Farmers and technicians have clearly identified the need to control the bacterial populations in both the culture water and the shrimp gut and the probiotics efficiency in performing this task has been proven over and over. Processors, exporters and all other downstream stakeholders also benefit from the generalization of probiotics that help reduce the misuse of antibiotics in an industry plagued by diseases. However, the practical application of probiotics is still subject to debate as advice from probiotic suppliers, aquaculture technicians and researchers differ greatly, especially when talking about probiotics for feed application. Feed probiotics are live microorganisms that provide health benefits when consumed by shrimp

or fish. The beneficial impacts of feed probiotics on the host can be classified in three categories: • Exclusion of pathogens: through competitive exclusion (competition for the same environment and nutrients) and secretion of antibacterial peptides, probiotic bacteria can control the population of pathogenic bacteria. It has also been proven that a healthy bacterial population reduce the incidence and impact of harmful viruses. • Improved digestion: probiotic bacteria, when properly selected, can secrete digestive enzyme and adjust the gut pH which help the animal get the most out of the feed. • Enhance the health status of the host: probiotic bacteria improve the general health status of the host by enhancing the barrier function of the gut, secreting antioxidant enzymes and through different immunomodulation activities.

Aquafeed: Advances in Processing & Formulation Vol 12 Issue 4 2020

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