二肽螯合铁对仔猪生长性能、血清铁和抗氧化指标的影响

Effects of Ferrous N-Carbamylglycinate Chelate on Growth Performance,Serum Iron and Antioxidant Indices of Piglets

本试验旨在研究二肽螯合铁对仔猪生长性能、血清铁和抗氧化指标的影响。选取40日龄健康三元杂交仔猪80头,随机分为对照组和试验组2个组,每组4个重复,每个重复10头猪。对照组和试验组饲粮中的铁添加量均为180 mg/kg(以铁计),对照组仅添加硫酸亚铁,试验组仅添加二肽螯合铁。试验期21 d。结果表明,与对照组相比,试验组平均日增重(ADG)提高了10.37%(P>0.05),料重比(F/G)降低了5.59%(P<0.05);试验组血清铁含量显著高于对照组(P<0.05),血清铁蛋白和血红蛋白含量高于对照组(P>0.05);试验组血清超氧化物歧化酶(SOD)活性显著高于对照组(P<0.05),血清丙二醛(MDA)含量显著低于对照组(P<0.05)。由此可见,二肽螯合铁可明显促进仔猪生长,改善仔猪体内铁代谢状况,增强仔猪抗氧化能力。

The aim of the present study was to investigate the effects of ferrous N-carbamylglycinate chelate（Fe-CGly） on growth performance,serum iron and antioxidant indices of piglets.Eighty piglets（Duroc ×Landrace × Large Yorkshire） at 40 days of age were randomly assigned to 2 groups with 4 replicates per group and 10 piglets per replicate.The diets of control group and experimental group all contained 180 mg/kg iron,the diet of control group only supplemented with Fe2SO4·7H2O,and the diet of experimental group only supplemented with Fe-CGly.The experiment lasted for 21 days.The results showed as follows：compared with the control group,the average daily gain（ADG） of experimental group was increased by 10.37 %（P〈0.05）,while the ratio of feed to gain was decreased by 5.59 %（P〈0.05）.The serum iron content of experimental group was significantly higher than those of control group（P〈0.05）,the serum ferritin and hemoglobin contents of experimental group were higher than that of control group（P〉0.05）.The serum superoxide dismutase（SOD） activity of experimental group was significantly higher than that of control group（P〈0.05）,while the malonaldehyde（M DA） content of experimental group was significantly lower than that of control group（P〈0.05）.Thus,it can be concluded that the Fe-CGly has benefits on improving growth performance,iron metabolism and antioxidant status in piglets.