Effect of Probiotic and Synbiotic Food Supplementation on Growth Performance and Healthy Status of Grass Carp, Ctenopharyngodon idella (Valenciennes, 1844)

摘要

This study aimed to investigate the effect of probiotic (yeast Saccharomyces cerevisiae, bacillus subtilis and bacillus cereus) and synbiotic (Microban aqua) on growth performance, nutrient utilization, biochemical composition, blood parameters, gut pathogens and stress response of the fingerlings of grass carp Ctenopharyngodon idella. Results indicated an enhancement in growth and feed utilization for all fish groups fed by probiotic followed by synbiotic compared with the control group. The biochemical analyses exhibited significant decrease in moisture contents in fish fed probiotic. The obvious increment in lipid contents was reported for in fish fed synbiotic. Serum total protein, albumin and globulin levels indicated positive effects when fish fed probiotic. Also, results exhibited decrease in serum cholesterol levels in the groups that treated with probiotic (bacillus subtilis, bacillus cereus and yeast). The tolerance to gut pathogens and stress test has been enhanced in all fish groups fed with probiotic followed by synbiotic compared to the control group. The present results indicated the effectiveness of food Supplementation with Probiotic and Synbiotic in fish diet with the preference of probiotic to improve the growth Performance and Healthy Status of fishes particularly Grass Carp, Ctenopharyngodon idella.