In this study, 144 of 38 days old Yorkshire nursery pigs were randomly assigned to three groups using single factor experiment design with three replicates and 16 piglets(half females and half castrated males) each replicate. Three groups were fed basal diet containing inorganic copper, iron, manganese, zinc and selenium(Fe 100 mg/kg, Zn 100 mg/kg, Mn 20 mg/kg, Cu 20 mg/kg, Se 0.4 mg/kg), small peptide complex copper, iron, manganese, zinc and selenium yeast and inorganic copper, iron, manganese and zinc(sm...