日粮中不同铁源对罗曼蛋鸡产蛋性能以及蛋品质的影响

选375日龄健康的罗曼蛋鸡387羽,随机分为3组,每组设3个重复,每一重复43羽.对照组基础日粮中添加80 mg/kg铁(硫酸亚铁),两试验组分别添加80 mg/kg铁(甘氨酸铁)、80 mg/kg铁(纳米硫酸亚铁).试验为期10周,研究日粮中不同铁源对罗曼蛋鸡产蛋性能和蛋品质的影响.结果表明,苷氨酸铁与纳米硫酸亚铁组与对照组的生产性能无显著差异(P＞0.05),但均有提高;并具有提高蛋中铁含量的作用,使蛋黄中铁的沉积量分别提高了6.10%(P＞0.05)、43.95%(P＜0.05),蛋白中铁的沉积量分别提高了41.90%(P＜0.05)、72.01%(P＜0.01).

Effect of different iron from sources on laying performance and egg quality in Roman hens

In this research, 387 healthy Roman laying hens of 375 days of age were randomly divided into three groups, each included three replicates of 43 layers. The layers were given a basal corn-soybean meal diet supplemented with iron from different sources for ten weeks to study their effects of different iron on laying performance and egg quality . The control layers were supplemented with 80 mg/kg Fe(FeSO_4), and the test layers were supplemented with 80 mg/kg Fe (ferrous glycine chelate) and 80 mg/kg Fe (nanometer FeSO_4). The results showed that there are no significant difference in laying performance among different treatments (P>0.05), but the test groups are superior to the control. Furthermore, test layers improved iron level of the egg compared with control. A concentration of 80 mg ferrous glycine chelate and 80mg nanometer FeSO_4 per kilogram of diet raised the iron level by 6.10% (P>0.05),43.95%(P<0.05) in yolk, and 41.90%(P<0.05),72.01%(P<0.01) in albumen.