The experiment was carried out to evaluate the effects of iron amino acid chelate on growth performance,iron apparent digestibility,skin color and blood index in weaned piglets, as compared to those of feed grade ferrous sulfate. One hundred and fifty weaned piglets(D×L×Y,28-day-old),with an average weight of(8.10±0.04) kg, were randomly allocated into five dietary treatments with three replicates(ten pins per pen).The control diet included 100 mg/kg iron from ferrous sulfate heptahydrate into th...