Inroduction & Objective: Growth and immunity resistance of fish are the most important factors in aquaculture. therefore, many types of research in probiotics, prebiotics, and synbiotics for improving growth and immunity in fish have been studied in the last years.
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Inroduction & Objective: Growth and immunity resistance of fish are the most important factors in aquaculture. therefore, many types of research in probiotics, prebiotics, and synbiotics for improving growth and immunity in fish have been studied in the last years.
Materials and Methods: In this study, effects of Lactobacillus plantarum and MOSon growth performance, digestive enzymes activity and intestine morphology of Oncorhynchus mykiss were studied. Juvenile rainbow trout (n=270) in 6 administration groups in 18 tanks were kept and fed with diets containing different doses (0.3 and 0.5 g kg-1 feed) of the probiotic, (2 g kg-1 feed) of prebiotic, (0.3+2 and 0.5+ 2g kg-1 feed of probiotic and prebiotic respectively) and a control group for 45 days.
Results: Results showed a positive effect on growth performance and digestive enzymes activity in probiotic (0.3 and 0.5 g kg-1 feed of probiotic) and synbiotic groups compared to the control group(p<0.05).
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