将点带石斑鱼幼鱼(15±0.5)g,随机分为3组,每组投喂不同饵料,分别为鱼肉组、配合饲料组和混合饵料组(小杂鱼和配合饲料交替投喂),每组3个重复,养殖6周后测定各组幼鱼生长指标、全鱼营养成分、肠胃消化酶活性及肝脏磷酸酶活性以研究这3种饵料对点带石斑鱼幼鱼生长、消化功能及全鱼营养成分的影响。结果表明:鱼肉组和混合饵料组的相对增重率和特定生长率均显著高于配合饲料组(P<0.05)。肠、胃蛋白酶活性呈现鱼肉组>混合饵料组>配合饲料组的趋势且差异显著(P<0.05),肠淀粉酶活性趋势相反且差异显著(P<0.05);各组肠、胃脂肪酶活性之间没有显著差异(P>0.05);鱼肉组肝脏碱性磷酸酶活性显著高于配合饲料组(P<0.05),鱼肉肝脏组酸性磷酸酶活性显著高于混合饵料组和配合饲料组(P<0.05)。各组全鱼水分和灰分含量没有显著差异(P>0.05),粗蛋白含量为鱼肉组>混合饵料组>配合饲料组且差异显著(P<0.05);粗脂肪含量趋势相反,为鱼肉组<混合饵料组<配合饲料组且差异显著(P<0.05)。因此,小杂鱼在各方面都要优于配合饲料,交替投喂小杂鱼和配合饲料是一种较好的投喂方式。 The grouper larvae (15 ± 0.5) g were randomly divided into three groups, each fed with different diets, namely fish group, compound feed group and mixed feed group (small trash fish and compound feed were fed alternately ), Three replicates in each group. After six weeks of aquaculture, the juvenile fish growth indexes, whole fish nutrient contents, gastrointestinal digestive enzyme activity and liver phosphatase activity were measured to study the effects of these three kinds of diets on the growth, Digestive function and nutritional status of whole fish. The results showed that the relative weight gain rate and specific growth rate of fish meal group and mixed food group were significantly higher than that of compound feed group (P <0.05). Intestine and pepsin showed the trend of difference (P <0.05), intestine amylase activity had the opposite trend and significant difference (P <0.05), the intestine and stomach lipase activity (P> 0.05). The activity of alkaline phosphatase in the fish liver was significantly higher than that in the feed (P <0.05), and the activity of acid phosphatase in the fish liver was significantly higher than that in the mixed feed and the compound feed (P <0.05). There was no significant difference (P> 0.05) in the water and ash content of the whole fish in each group, and the crude protein content was significantly different in the fish group> mixed bait group> compound feed group (P <0.05) Mixed feed group