الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
A 70 days feeding trial was conducted to investigate the effects of two dietary probiotics; Bacillus subtilis KCTC 2217 or Bacillus licheniformis KCCM 11775 with two prebiotics; mannan oligosaccharide (MOS) or fructooligosaccharide (FOS) on Nile tilapia fingerlings. Fish averaging 10.8 ± 0.50 g (mean ± SD) were randomly distributed into five treatments with triplicate tanks. A basal control diet (CON) and four synbiotic diets supplementing B. subtilis + MOS (BSM), B. subtilis + FOS (BSF), B. Licheniformis + MOS (BLM) and B. licheniformis + FOS (BLF). Results showed that dietary B. subtilis with FOS (BSF) and B. licheniformis with MOS (BLM) give the best weight gain and specific growth rate than other treatments. In general, weight gain and specific growth rate of fish fed all synbiotic diets were higher than fish fed control diet. It could be concluded that dietary B. subtilis with FOS (BSF) and B. licheniformis with MOS (BLM) could have beneficial effects on growth performance and feed utilization in Nile tilapia (Oreochrmis nilticus) fingerlings.