饲料中添加β-葡聚糖和低聚果糖对中华鳖幼鳖生长和血清SOD、溶菌酶活力的影响

在基础饲料中分别添加0.2%、0.3%β 葡聚糖和0.15%、0.25%低聚果糖,饲喂中华鳖幼鳖100d,测定中华鳖的生长和血清超氧化物歧化酶(SOD)、溶菌酶的活力。结果表明,添加0.25%低聚果糖显著提高了幼鳖增重率(P<0.05)和成活率(P<0.05);添加0.3%β 葡聚糖也有提高幼鳖增重率和成活率的趋势,但不显著(P>0.05)。在血清酶活力方面,添加0.25%低聚果糖组SOD酶活力比对照组高31.3%(P<0.05),而添加0.3%β 葡聚糖组的SOD酶活力比对照组高但无显著差异(P>0.05),对照组、0.3%β 葡聚糖组和0.25%低聚果糖组间溶菌酶活力无显著差异(P>0.05)。

Effects of dietary betaglucan and fructooligosaccharides on the growth and activities of superoxide dismutase and lysozyme of Trionyx sinensis

The growth and activities of superoxide dismutase and lysozyme of soft-shelled turtle were measured and compared through feeding with 0.2%, 0.3% of betaglucan and 0.15%, 0.25% of fructooligosaccharieds in basal formulated diet on the 100th feeding day. The results showed that the weight and survival rate of 0.25% fructooligosaccharides group were significantly higher than control group's(P<0.05). The weight and survival rate of 0.3% betaglucan showed a trend of higher than that of control group, but not significant(P>0.05). The activity of superoxide dismutase of 0.25% fructooligosaccharides group was 31.3% higher than that of control group(P<(0.05)). The activity of superoxide dismutase of 0.3% betaglucan was higher than that of control group but not significantly(P>0.05). There was no significant difference on the activities of lysozyme among the groups of (0.25%) fructooligosaccharides, 0.3% betaglucan group and control group(P>0.05).