[Study of infant hair specimens for trace element contents under different conditions of feeding].

The contents of 11 microelements (Cu, Zn, Fe, Mn, Ca, Mg, Al, P, Ba, Se, Sr) in breast milk of 53 postpartum feeding mothers and the hair specimen of 278 healthy infants with different feeding forms (breast feeding, milk and milk mixture) had been measured. The age of the infants was 72 days, the statistical analysis was shown that Zn value of infant hair specimen with breast feeding was significantly higher than the milk feeding (P < 0.01). Breast milk can provide enough Se for the infants. The dispensing milk and the dispensing milk powder were the satisfactory milk feeding substitute in the market now. The improved opinions were suggested.