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Table 3 Comparative hematology values (mean ± SD) among the cobras

From: Hematological and plasma biochemical parameters in a wild population of Naja naja (Linnaeus, 1758) in Sri Lanka

Species Naja naja Naja naja Naja kaouthia Naja siamensis Naja sumatrana
Sex M F M F    
References Current study (Sri Lanka) Parida et al. [33] (India) Salakij et al. [26] (Thailand)
PCV (%) 23.80 ± 2.03a 20.41 ± 1.67a 29.8 ± 4.2a 25.4 ± 3.9a 21.2 ± 1.2a 21.3 ± 1.8a 18.8 ± 2.4a
Hemoglobin (g/dL) 7.6 ± 0.89a 6.62 ± 1.49a 6.9 ± 0.1a 6.5 ± 0.2 6.5 ± 0.4a 6.9 ± 0.6a 4.8 ± 0.7a
RBC (106/μL) 0.581 ± 0.035a 0.495 ± 0.0408a 0.39 ± 0.125a 0.3475 ± 0.750a 0.616 ± 0.052a 0.576 ± 0.042 0.657 ± 0.086a
MCV (fL) 397.71 ± 36.51a 380.30 ± 30.01 386.7 ± 63.8 348.2 ± 59.33a 362.7 ± 18.9a 371.6 ± 24.9a 289.3 ± 9.6a
MCH (pg) 135.43 ± 19.37a 141.11 ± 21.96b 118.6 ± 23.1a 142.4 ± 19.5 110.1 ± 5.90ab 120.3 ± 9.62ab 71.2 ± 3.1ab
MCHC (g/dL) 31.30 ± 14.61a 33.42 ± 9.67 38.8 ± 1.9a 42.6 ± 1.4a 30.5 ± 0.7 32.3 ± 1.5 24.8 ± 1.7a
WBC (103/μL) 12.45 ± 1.32a 11.98 ± 1.62b 11.70 ± 1.00 12.10 ± 2.00 14.316 ± 1.265 12.025 ± 0.880 9.816 ± 1.046ab
 ➢ Azurophils (%) 30.07 ± 3.12a 27.88 ± 2.1a ~ ~ 26.1 ± 3.7a 25.2 ± 3.5a 26.0 ± 4.5a
 ➢ Heterophils (%) 10.05 ± 2.41a 8.87 ± 2.53b 25.33 ± 3.51ab 23.66 ± 4.5ab 4.4 ± 1.0ab 1.9 ± 0.5ab 4.7 ± 1.3ab
 ➢ Eosinophils (%) 2.94 ± 0.88a 2.08 ± 1.12 3.66 ± 1.52 2.66 ± 1.52 1.1 ± 0.08a 1.4 ± 0.3a 0 ± 0
 ➢ Basophils (%) 1.02 ± 0.92a 0 ± 0 4.66 ± 1.52a 5 ± 2a 0 ± 0 0 ± 0 0.2 ± 0.2a
 ➢ Lymphocytes (%) 64 ± 4.43a 66.26 ± 5.2b 49 ± 5.43ab 47.26 ± 4.4ab 66.9 ± 4.4 71.8 ± 3.5ab 69.2 ± 4.1a
 ➢ Monocytes (%) 5.6 ± 2a 4.66 ± 1.52b 4 ± 2a 2.66 ± 1.52ab 1.2 ± 0.4ab 1.0 ± 0.5ab 0 ± 0
Total thrombocytes (103/μL) 5.36 ± 2.23 4.13 ± 1.45 ~ ~ ~ ~ ~
Plasma protein (g/dl) 5.11 ± 0.75a 3.25 ± 0.74ab 4.53 ± 0.17a 1.24 ± 0.08ab 5.56 ± 0.43b 6.84 ± 0.63ab 9.6 ± 0.4ab
Cholesterol (mg/mL of serum) 4.09 ± 0.12 3.78 ± 0.42 3.76 ± 0.06 4.72 ± 0.2 ~ ~ ~
Albumin(g/dl) 2.7 ± 1.1 2.1 ± 1.9 ~ ~ ~ ~ ~
  1. PCV packed cell volume, RBC red blood cells, MCV mean corpuscular volume, MCH mean corpuscular hemoglobin, MHCH mean corpuscular hemoglobin concentration, WBC white blood cells, SD standard deviation
  2. Values are given as the mean ± SD (range), values indicated with the same superscript letters are significantly different at p < 0.05