SummaryLashev, L., S. Atanasova & Т. Dinev, 2015. Interspecies and gender-related variations of some haematological parameters in Galliformes bird species. Bulg. J. Vet. Med., 18, No. 4,[325][326][327][328][329][330][331][332][333][334][335][336][337] An analysis of literature data about routine haematological parameters of avian species from the Galliformes order is made. Data for the following gallinaceous birds were included: wild and domesticated chicken breeds, common pheasant, quail, turkey, peafowl and guinea fowl. Data for red and white blood picture indices such as haemoglobin, red blood cells (RBC), packed cell volume (PCV), total and differential white blood cell (WBC) counts from the literature as well as own data were used. Gender-related differences were reported by most of authors for RBC, haemoglobin and PCV with higher values in male birds from the Gallus gallus species. Similar results were not found in other species of the order. In most of the cases no statistically significant interspecies or gender-related differences in WBC counts were registered. Tendencies for higher heterophil/lymphocyte ratios (H/L) in male birds were also registered. Differences related to the breed, result of various degree of domestication, were not identified.

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