免加铁源饲料添加剂饲粮对育肥猪的饲用效果

Effects of feeding diet without iron-containing additive on finishing pigs

【目的】探讨免加铁源饲料添加剂饲粮在育肥猪中的应用效果。【方法】2012-09-28-11-12,选取健康、体质量约为69kg的杜×长×大育肥猪32头,将其分为对照组和试验组,每组16头猪,用加有铁源饲料添加剂的常规饲粮饲喂对照组,用免加铁源饲料添加剂的基础饲粮饲喂试验组,分析2组猪生产性能、饲料利用和血浆生化指标的变化。【结果】与对照组相比,试验组猪平均日增质量和对饲料转化率有提高的趋势;对粗蛋白、无氮浸出物、粗纤维的消化率显著提高(P<0.05);血浆铁质量浓度显著减少(P<0.05),但血红蛋白质量浓度却极显著提高(P<0.01);血浆谷丙转氨酶活性显著(P<0.05)提高;血浆总蛋白、甘油三酯和胆固醇含量显著增加(P<0.05);其他血浆生化指标差异不显著。【结论】育肥猪基础饲粮无需加铁源饲料添加剂。

【Objective】The application of diet without iron-containing additive to feed finishing pigs was investigated in this experiment.【Method】From September 28,2012 to November 12,2012,32 healthy three-way crossbred(Duroc×Landrace×Yorkshire)finishing pigs weighting^69kg were selected and divided into 2groups:the control and the experimental group with 16 pigs in each group.The control group pigs were fed with the common diet with iron-containing additive,while the experimental group pigs were fed with the basal diet without iron-containing additive.The changes in productive performance,feed utilization and plasma biochemical parameters of finishing pigs were analyzed.【Result】Compared with the control group,ADG and FCR of the experimental group slightly increased while the digestion coefficients of CP,NFE and CF increased significantly(P<0.05).Iron content in plasma of the experimental pig plasma decreased significantly(P<0.05),while Hb concentration increased highly significantly(P<0.01).TP,TG and Cho concentrations as well as GPT activity also increased significantly(P<0.05).There were no significant differences(P>0.05)in other plasma biochemical parameters between the two groups.【Conclusion】It was confirmed that there was no need to add iron-containing additive to basal diet of finishing pigs.