For a retrospective study the patient data of all anaemic dogs that were st
udied in the Department of Internal Medicine in the years 1991-1996 have be
en evaluated. Packed cell volume, absolute reticulocyte count, reticulocyte
index, Wintrobe-Indices, normoblast count, white blood cell count and plat
elet count were evaluated. Haemorrhages, nephropathies, coagulopathies and
haemolytic processes were overrepresented. For the assessment of the regene
rative potential the absolute reticulocyte count and not the RPI seemed to
be the best choice in the early phase of anemia.