Valores dos índicesde anisocitose (RDW-CV e RDW-SD) em cães: influência da idade e do sexo

The aim of this study was to verify age and sex influence on RDW-CV (Red blood cell distribution width measured by Variation  Coefficient)and RDW-SD (Red blood cell distribution width measured by Standard Deviation) values in healthy dogs’ blood tests.  Were analyzed the results of blood tests of 332 dogs(136 males and 186 females). These results were further divided into three  groups according to age: animals up to one year (n = 42), with one to nine years (n = 104) and over nine years (n = 186).All  Complete blood count (CBC) tests were processed in the Automated Veterinary hematology counter Sysmex ® - Poch 100 iV  during the period September 2009 to September 2010 and the results were confirmed by microscopic analyses of blood films. The  mean values and standard deviations for RDW-CV (%) were 10.74 ± 1.53, similar to values cited in literature. For RDW-SD (fL)  the obtained values were 32.01 ± 7.56. However, there are no reference values for this index in literature for dogs. There was no  significant difference in values for these indices between males and females or different age groups. These data can be used as  reference for both genders within all ages.