高铜、高锌日粮中铜、锌、铁最适添加量的探讨

摘要

用690头杜长大三元杂交仔猪进行试验.试验结果表明：满足仔猪日增重最高时日粮中的添加量为铜250mg/kg，锌(氧化锌)2 613mg/kg，铁215mg/kg；满足耗料比最低时的添加量为铜250mg/kg，锌(氧化锌)2 655mg/kg，铁172mg/kg；满足腹泻率最低时的添加量为铜250mg/kg，锌(氧化锌)2 717mg/kg，铁153mg/kg.%The results showed that the optimum allowance of Cu Zn and Fe for the requirement of the highest lightest daily gain was 250mg/kg ,2613mg/kg,and 215mg/kg respectively. For the highest feed conversion rate,the optimum allowance of Cu,Zn and Fe the lowest diarrhoea rate,the optimum allowance of Cu,Zn and Fe was,250mg/kg，2717mg/kg and 153mg/kg，respectively.