Filgrastim (Colstim®) is a recombinant Methionyl Human Granulocyte ColonyStimulating Factor (r-metHuG-CSF) analog used to stimulate the proliferation and differentiation of granulocytes in humans undergoing chemotherapy with granulocyte values below G/l likely to be threatened by infections, including sepsis possibly with a fatal outcome. A four month old female Rottweiler pup was presented to the TVCC, RIVER with the history of vomiting and melena for the past two days. | Effect of filgrastim in a severe leucopenia associated parvoviral enteritis in rottweiler