abstract: The study was conducted between March 2020 -December 2022 on 129 dogs and 63 cats, different breeds and age, both males and females, clinically diagnosed with anemia.All individuals were subjected to a full hematology test including blood analysis and blood smear assessment where regenerative reaction was confirmed in 22 dogs and 9 cats.To understand the ability of the hematogenous bone marrow to respond and develop new red blood cells (RBCs) and the effectiveness of the therapy is important to 
journal: Scientific Papers Journal VETERINARY SERIES