supplement.infants with and without iron spp. in fecal samples from breast-fed and Bifidobacterium, Bacteroides, and Clostridium

and xylose and by the production ofindole. Clostridium spp. were identified by their ability toferment fructose, glucose, lactose, maltose, mannitol, man-nose, starch, and sucrose, produce indole, gelatinase, andlecithinase, and hydrolyze esculin and starch.Statistical analysis. Thefrequency ofisolation ofthe spe-cies ofthe different anaerobic generaand the percentage of