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The present study was carried out to investigate the effect of retained placenta in local cows on (zinc , Magnesium , calcium , β-carotene and vitamin A ) and some hematological parameters. A total of forty cow were used in this study from fields in Al-Shirqat city, divided into two groups , the first group include thirty cows suffers from retained placenta and the second group include ten cows with normal parturition represent the control group. They were at age 3-5 years. Their body weight ranged between 150-180 Kgm. We noted in this study that (zinc, calcium, β-carotene and vitamin A ) decreased significantly (P≥0.05) in group suffers from retained placenta in compare with healthy group, except Magnesium there is no significant difference between studied groups. Regarding hematological parameters (fibrinogen (Fb), packed cell volume (PCV), hemoglobin (Hgb), number of white blood cells (WBCs) and red blood cells (RBCs) , we noted that (WBCs) increased significantly in the infected group in compare with healthy group, while other hematological parameters decreased significantly in the infected group in compare with healthy group except that (PCV) don’t different significantly between two studied groups. We conclude from this study that retained placenta (RP) has adverse effect on the level of some minerals and some hematological parameters .