Hemogram and Biochemical Reference Values for Brotogeris chiriri (Psittaciformes: Psittacidae)

Resumo

Despite the large distribution of
the Yellow chevroned Parakeet in Cerrado biome, there are
few studies on biological par ameters in this species. The lack of information on free living
parakeets is a limiting factor for establishing data on the health and conservation status of
these species. The aim of this study was to standardize hemogram and blood biochemistry
values for specimens of Brotogeris chiriri . Blood samples were collected from 21 young,
clinically healthy and free living specimens from the Cerrado biome. The mean, median,
standard deviation and intervals were calculated for the following hematological parameters :
packed cell volume (PCV), red blood cells, hemoglobin, mean corpuscular volume (MCV),
mean corpuscular hemoglobin concentration (MCHC), leukocytes, heterophils, eosinophils,
lymphocytes, monocytes and thrombocytes; and blood biochemistry parameters: uric acid,
aspartate aminotransferase, alanine aminotransferase, gamma glutamyl transferase, alkaline
phosphatase, total protein and albumin. Lower values of hemoglobin, MCV and MCHC when
compared to the erythrogram interval of species belonging to the same ge nus and family, as
well as a lymphocytic leukogram. The parameters related to blood biochemistry showed
differences for alkaline phosphatase, presenting higher means values; and alanine
aminotransferase, total protein and albumin, presenting lower means va lues when compared
to other psittacids. This is a pioneer study to establish hematological and biochemical values
for Brotogeris chiriri in the Cerrado biome. The importance of developing further studies to
determine specific parameters for psittacid speci es is emphasized, with special regards to the
effects of different stages of development, habitats and condition.