二肽螯合铁对仔猪生长性能、血清铁和抗氧化指标的影响

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%(P0.05),料重比(F/G)降低了5.59%(P0.05);试验组血清铁含量显著高于对照组(P0.05),血清铁蛋白和血红蛋白含量高于对照组(P0.05);试验组血清超氧化物歧化酶(SOD)活性显著高于对照组(P0.05),血清丙二醛(MDA)含量显著低于对照组(P0.05)。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。

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

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 sup?plemented 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 con?tents 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 ( MDA) 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 metab?olism and antioxidant status in piglets.