Donkey Haematology

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WIKINORMALS
DONKEY SECTION


Parameter/units Average Range Interpretation
RBC 1012/l 5.5 (4 - 7.3) Red blood cells, packed cell volume, haemoglobin:

Elevations in RBC, PCV, and Hb may occur in dehydration and with stress, excitation and exercise. A reduction in these values may occur with acute haemorrhage, chronic inflammation, renal disease, hepatic disease, parasitism, haemolysis, and haematopoietic neoplasia.

PCV % 33 (25 - 38) As above
Hb g/dl 11.6 (9 - 15.3) As above
MCH pg 21.9 (18.9 - 28.6) Mean corpuscular haematology:

Elevations occur with haemolysis. Reductions usually indicate iron deficiency.

MCHC g/dl 34.8 (31.4 - 39.1) Mean corpuscular haematological concentration:

Elevations occur with haemolysis. Reductions may indicate iron deficiency.

MCV fl 64 (57 - 79) Macrocytosis seen with regenerative anaemia. Microcytosis seen with iron deficiency.
WBC 109/l 10.2 (6.1 - 16.1) White blood cells. The total number of WBC is influenced by the numbers of neutrophils, lymphocytes, eosinophils, monocytes and basophils. Leucocytosis is seen with septic and non-septic inflammatory conditions. Leucopaenia can occur

during viral infection and severe leucopenia with acute bacterial infections.

NEU % 50.5 (28 - 78) Neutrophils. Neutrophilia can arise transiently due to exercise, excitement and stress. Elevations are seen with septic and non-septic inflammatory conditions and acute bacterial infections. Corticosteroids, exogenous and endogenous, also cause a neutrophilia. Neutropenia can occur during viral infections.
NEU T 109/l 5.0 (2.2 - 13.3) As above
EOS % 4 (1 - 10) Eosinophils. Eosinophilia may be seen as a result of parasitism, allergic respiratory disease and eosinophilic leukaemia. Eosinopaenia is hard to evaluate as the numbers of eosinophils in normal donkeys are low.
EOS T 109/l 0.38 (0.09 - 1.15) As above
BAS % 0 (0 - 0.8) Basophils. Basophilia is rare in donkeys.
BAS T 109/l 0 (0 - 0.5) As above
LYM % 43 (17 - 65) Lymphocytes. Lymphocytosis occurs in response to chronic viral infections, autoimmune disease and with excitement or exercise. Large elevations in lymphocyte numbers can be seen in lymphoma. Lymphopaenia occurs as a result of stress, exogenous corticosteroid administration, severe bacterial or viral infections, endotoxemia and immunodeficiency.
LYM T 109/l 4.2 (1.8 - 7.8) As above
MON % 1 (0 - 5) Monocytes. Monocytosis can occur as a result of chronic suppurative and granulomatous inflammation. It may also be seen during recovery from viral infections of the upper respiratory tract.
MON T 109/l 0.13 (0 - 0.8) As above
Platelets 109/l 5.5 (4 - 7.3) Thrombocytes. Thrombocytosis is rare but can occur in bacterial infections. Thrombocytopaenia may be seen in disseminated intravascular coagulopathy (DIC), immunemediated thrombocytopenia, equine infectious anaemia (EIA), endotoxemia, equine ehrlichiosis, neoplasia, or as a result of severe haemorrhage. Artifactual reductions in platelet numbers can occur as a result of platelets clumping in EDTA.

Svendsen, E.D., Duncan, J. and Hadrill, D. (2008) The Professional Handbook of the Donkey, 4th edition, Whittet Books, Appendix 1

This section was sponsored and content provided by THE DONKEY SANCTUARY