Multispecies probiotics applications through feed addition on cultured tilapia to prevent streptococcosis

Abstract

Streptococcosis is one of the diseases that often arise and can cause death by 100% in tilapia fish farming. This study aimed to determine the most optimal probiotics combination of cells Bacillus cereus P22, Bacillus subtillis ND2 and Staphylococcus lentus L1k through the feed for streptococcosis prevention. The experimental fish with initial body weight of (13.06±0.18 g), were randomly distributed at 25 fish per 60 L water, and reared for 21 days. The fish fed with supplemented feed (except controls) with FR 3%, about three times a day, for 14 days.