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In the paper, under simulated culture conditions, the effect of myxobacteria microecological preparation JCH-04 on the growth, digestive enzyme and humoral immunity of grass carp were studied, at the same time, the removal effect of that on NH4 + -N, N02 一 -N and COD of aquaculture water was assessed. Feeding method and added amount were defined. The research provided a theoretical basis for the application of microecological preparation on aquaculture and water purification. The composition of the experimental diets is: fish meal 8%; peanut meal 20%; soybean meal 11%; rapeseed meal 30%; puffing soybean powder 5%; wheat middling 20%;rice bran 2%;salt 0.5%; vitamin B-complex mix 0.5%; mineral complex mix 2%; plant oil 1%. Different concentration of probiotics of JCH-04 compound microcapsule preparation (0.1%, 0.2%, 0.4%) was mixed with the dough and the diets were pelletized 2cm in diameter with hand pelletizer.

Effects of Probiotics Diet Fed Myxcobacteria (JCH-04) on Survival, Growth, Digestive Enzymes Activities and Aquatic Environment in Grass Carp (Ctenopharyngodon idellus)