Bacteria Application in Fermentation of Fish Feed Components: a review

Aquaculture

Feed is the most important component in fish farming business. The feed given to fish must have a balanced nutritional content hence that fish can grow optimally. The demand for feed derived from fish meal and soybeans has increased, causing the selling price of these feed ingredients to rise. The use of local raw materials sourced from agricultural industrial waste is a feasible solution. However, in this regard, the utilization of waste raw materials has drawbacks, one of which is the high content of crude fiber which can inhibit fish growth. The application of fermented feed ingredients with microbes is the best solution to use because it can improve the nutrition of feed ingredients, reduce crude fiber, and increase the digestibility of fish. One of the factors that influence the fermentation process is the substrate and microbes used. The bacteria commonly used for the fermentation process of feed ingredients are Bacillus subtilis and lactic acid bacteria. Fermentation of feed ingredients with bacteria has been proven to be able to produce quality feed raw materials and has an effect on increasing digestibility and fish growth.

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