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Age-related haematological changes and haemopathological responses in Chilean flamingos (Phoenicopterus chiliensis)
C Hawkey1, M G Hart, H J Samour
1Institute of Zoology, Zoological Society of London, London, England.
Insights
Hematologic values in Chilean flamingos change with age, with chicks showing lower red blood cell counts and higher white blood cell counts than adults. These findings highlight the diagnostic potential of clinical hematology in this species.
Area of Science:
- Avian hematology
- Comparative physiology
- Wildlife health
Background:
- Hematological parameters are crucial indicators of health in avian species.
- Establishing age-specific reference ranges is essential for accurate health assessments in Chilean flamingos (Phoenicopterus chilensis).
Purpose of the Study:
- To determine age-related changes in hematological values in clinically normal Chilean flamingos.
- To assess the diagnostic potential of clinical hematology in Chilean flamingos.
Main Methods:
- Collected blood samples from 49 clinically normal Chilean flamingos of varying ages.
- Performed full blood counts and fibrinogen estimations.
- Analyzed hematological parameters including hemoglobin, red blood cell count, packed cell volume, and white blood cell count.
Main Results:
- Chicks (2-3 months) exhibited lower hemoglobin, red blood cell counts, and packed cell volumes compared to adults.
- Hemoglobin and red blood cell counts increased with age, reaching optimal levels in mature birds.
- Chicks had higher total white blood cell counts with variable heterophil numbers.
- Preliminary data from four sick adult birds suggested clinical hematology's diagnostic utility.
Conclusions:
- Hematological values in Chilean flamingos exhibit significant age-dependent variations.
- Reference ranges for Chilean flamingo hematology vary considerably between chicks and adults.
- Clinical hematology shows promise as a diagnostic tool for assessing the health of Chilean flamingos.
Abstract:
Full blood counts and fibrinogen estimations were carried out on 49 clinically normal Chilean flamingos of different ages. Compared with adults, chicks aged 2-3 months showed low haemoglobin levels, red cell counts, packed cell volumes and mean cell haemoglobin concentrations. There was a rise in haemoglobin level and red cell count with increasing age but the mean cell haemoglobin concentration did not reach optimum until the birds were mature. In chicks the total white cell count was high and the number of heterophils was widely variable. Findings on four sick adult birds provided preliminary evidence that clinical haematology has a potential diagnostic value in this species.
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