SUPPLEMENTS WAR IN AQUACULTURE: PROBIOTIC, PREBIOTIC & SYNBIOTIC
Updated: Jun 21
Asian aquaculture sectors presently contribute about 90% to the global production to meet the increasing demands. It is a fastest growing sector thus the need to intensify culture systems. However in this culture, culture animals are subjected to stress conditions that weaken their immune system. Therefore, diseases control in aquaculture industry have gone a long way by following traditional methods that include synthetic chemicals and antibiotics.
During these past three decades, the wide use of antibiotics in aquaculture has resulted in serious biological and ecological concerns because of the emergence of antibiotic resistance due to mutation. The products are also difficult to be marketed internationally since the chemical compositions of antibiotics accumulate inside the culture animals. Therefore, as an alternative to antibiotics, the probiotics, prebiotics, and synbiotics are the most promising feed supplements for control or treatments of bacterial, viral and parasitic diseases of culture animals.
In aquaculture, probiotic is a microbial feed supplements which provide beneficial effects for the intestinal balance of the host animal. The strains of bacteria usually use in probiotics include Bacillus acidophilus, B. subtilis, Nitrobacter spp., Saccharomyces cerevisiae and many more. Every brand of probiotic has its own guidelines. Generally, the dosage will change throughout the culture cycle, with heavy applications in the beginning of day of culture (DOC) and during stressful situations such as when vibrio increases or water quality decreases. Feed probiotic contain some bacterial strains which can be blended together with feeding pellet or by administered orally to feed culture animals to help improving gut health. While, water probiotic are usually applied to reduce organic pollutants and various water contaminants thus improve water quality.