饲粮添加蛋氨酸与浒苔多糖双重螯合铁对断乳仔猪生长性能和血清免疫及抗氧化指标的影响

Effects of dietary supplementation of methionine and enteromorpha polysaccharide double chelated iron on growth performance,serum immunity and antioxidant indexes of weaned piglets

氨糖铁(MEPI)为蛋氨酸、浒苔多糖双重鳌合有机微量元素铁,融合蛋氨酸、微量元素和海藻多糖的优点。试验检测分析饲粮中添加不同水平氨糖铁对35~70日龄断乳仔猪生长性能、存活率和血清免疫及抗氧化指标的影响。结果表明,添加60 mg/kg和90 mg/kg氨糖铁组的日采食量显著高于对照组和30 mg/kg氨糖铁组(P<0.05),但对照组与添加30 mg/kg氨糖铁组间无显著差异。添加60 mg/kg和90 mg/kg氨糖铁有提高日增重的趋势,日增重分别比对照组提高24.11%和18.33%。与对照组相比,添加氨糖铁试验组的存活率均显著提高(P<0.05)。血清免疫及抗氧化指标方面,添加氨糖铁组的血清补体C3、IgM、T-AOC含量均显著高于对照组(P<0.05),且以添加60 mg/kg氨糖铁组效果更好。

Methionine and enteromorpha polysaccharide double-chelate trace element iron(MEPI),which is a double-chelation organic trace iron element of methionine and enteromorpha polysaccharide,combining the advantages of methionine,trace elements and seaweed polysaccharide.Add different levels of methionine and Enteromorpha polysaccharide double-chelated trace element iron to the diet to detect and analyze the growth performance,survival rate,serum immunity and antioxidant indicators of 35~70-day-old weaned piglets.The results showed that the daily feed intake of the MEPI groups supplemented with 60 mg/kg and 90 mg/kg iron were significantly higher than that of the control group and the MEPI group supplemented with 30 mg/kg iron(P<0.05),but there was no significant difference between the control group and the group supplemented with 30 mg/kg iron.Adding 60 mg/kg and 90 mg/kg MEPI had a tendency to increase daily gain,which could increase daily gain by 24.11%and 18.33%,respectively.Compared with the control group,adding MEPI can significantly increase the survival rate(P<0.05).In terms of serum immune and antioxidant indicators,serum complement C3,IgM,and T-AOC contents in the group supplemented with MEPI were significantly higher than those in the control group(P<0.05),and the effect of 60 mg/kg group is better.