Abstract This study was conducted to evaluate the individual and combined effects of emodin and Clostridium butyricum on growth and non-specific immunity of giant freshwater prawn (Macrobrachium rosenbergii) for eight weeks with the initial body weight of 0.19 ± 0.5 g. Nine trial diets were prepared to contain three emodin levels (0, 25 and 50 mg/kg) and three C. butyricum levels (0, 250 and 500 mg/kg, 2 × 107 CFU/g) following a 3 × 3 factorial design. The diets were named as 0/0, 250/0, 500/0, 0/25, 250/25, 500/25, 0/50, 250/50 and 500/50 (C. butyricum/emodin), respectively. The results showed an interactive effect on the weight gain (WG) and feed conversion ratio were observed in prawns fed a diet containing 250 mg/kg C. butyricum and 50 mg/kg emodin, respectively. Besides, WG and specific growth rate (SGR) of prawns fed 250 mg/kg C. butyricum were both significantly (P

中文翻译：

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大黄素和酪酸梭菌联合对淡水大虾罗氏沼虾生长和非特异性免疫的影响

摘要 本研究旨在评估大黄素和酪酸梭菌对初始体重为 0.19 ± 0.5 g 的巨型淡水虾 (Macrobrachium rosenbergii) 8 周的生长和非特异性免疫的单独和联合作用。按照 3 × 3 析因设计，制备了九种试验日粮，分别含有三种大黄素水平（0、25 和 50 毫克/千克）和三种酪酸梭菌水平（0、250 和 500 毫克/千克，2 × 107 CFU/g） . 饮食分别命名为 0/0、250/0、500/0、0/25、250/25、500/25、0/50、250/50 和 500/50（丁酸梭菌/大黄素）。结果表明，在分别饲喂含有 250 毫克/千克丁酸梭菌和 50 毫克/千克大黄素的饮食的对虾中，观察到对增重 (WG) 和饲料转化率的交互作用。此外，饲喂 250 mg/kg C 的虾的 WG 和比生长率 (SGR)。