Several reports have suggested that soluble salts nickel may affect on hematopoiesis and development.In this study female Wistar albino rats (180-300g) received NiCl 2, 6H 2 O, subcutaneously (25, 50 and 100 mg/kg body weight (b w) or in drinking water (20 mg/100 ml).Selenium (0.3 mg/kg b w, s.c.) was combined to NiCl 2 (100 mg/kg b w, s.c.).Control groups received NaCl 0.9% (0.3 ml s.c) or drinki...