Table 2.
Mean and standard deviation hematology values for Antillean manatees from Puerto Rico for all age classes (calves, subadults, and adults; n = 70): calves only, n = 23; subadults only, n = 6; and adults only, n = 41, with ±1 standard deviation ranges in parentheses. Significant differences using p values between calves and adults are indicated with an asterisk (∗).
| Parameter | All manatee samples | Calves | Subadults | Adults | p value | ||||
|---|---|---|---|---|---|---|---|---|---|
| Mean ± SD | Range | Mean ± SD | Range | Mean ± SD | Range | Mean ± SD | Range | Calves vs. adults | |
| WBC (109/L) | 6.0 ± 2.0 | (4.0–8.0) | 7.3 ± 2.0 | (5.3–9.3) | 4.9 ± 1.8 | (3.1–6.7) | 5.4 ± 1.7 | (3.8–7.1) | 0.004∗ |
| RBC (106/mm3) | 2.7 ± 0.6 | (2.1–3.3) | 3.4 ± 0.4 | (3.0–3.8) | 2.3 ± 0.1 | (2.2–2.4) | 2.3 ± 0.02 | (2.1–2.6) | ≤0.001∗ |
| HBG (g/dL) | 11.2 ± 2.3 | (9.0–14) | 13.8 ± 1.5 | (12–15) | 9.4 ± 0.5 | (8.9–9.8) | 9.8 ± 0.8 | (8.9–11) | ≤0.001∗ |
| HCT (%) | 34.6 ± 6.4 | (28–41) | 41.6 ± 4.1 | (38–46) | 30.3 ± 4.0 | (26–34) | 30.7 ± 3.5 | (27–34) | ≤0.001∗ |
| PLTS (103/mm3) | 298.3 ± 91.3 | (207–390) | 306.7 ± 112.9 | (194–420) | 390.0 ± 79.4 | (311–469) | 283.8 ± 80.0 | (204–364) | 0.563 |
| Red blood cell indices | |||||||||
| MCV (fL) | 128.6 ± 8.2 | (120–137) | 124.5 ± 7.2 | (117–132) | 124.9 ± 8.1 | (117–133) | 131.7 ± 7.7 | (124–140) | 0.001∗ |
| MCH (pg) | 41.1 ± 1.4 | (40–43) | 40.9 ± 1.7 | (39–43) | 40.6 ± 0.7 | (40–41) | 41.3 ± 1.2 | (40–43) | 0.424 |
| MCHC (g/dL) | 32.2 ± 1.2 | (31–34) | 32.5 ± 1.2 | (31–34) | 32.5 ± 1.5 | (31–34) | 32.0 ± 1.3 | (31–33) | 0.124 |
| RDW (%) | 18.0 ± 2.8 | (15–21) | 17.9 ± 2.8 | (15–21) | 17.2 ± 2.1 | (15–19) | 18.2 ± 2.9 | (15–21) | 0.681 |
| White blood cell differential | |||||||||
| LYMP (%) | 42.8 ± 14.5 | (28–57) | 38.2 ± 16.5 | (22–55) | 54.0 ± 8.0 | (46–62) | 44.2 ± 13.0 | (31–57) | 0.165 |
| MONO (%) | 3.6 ± 2.3 | (1–6) | 4.1 ± 2.7 | (1–7) | 2.5 ± 1.7 | (1–4) | 3.5 ± 2.2 | (1–6) | 0.414 |
| EOSI (%) | 1.0 ± 1.4 | (0–3) | 0.6 ± 1.1 | (0–2) | 2.3 ± 2.1 | (0–4) | 1.1 ± 1.5 | (0–3) | 0.118 |
| BASO (%) | 0.3 ± 0.5 | (0–1) | 0.0 ± 0.2 | (0–0) | 0.5 ± 0.6 | (0–1) | 0.5 ± 0.6 | (0–1) | ≤0.001∗ |
| HETE (%) | 52.3 ± 14.7 | (38–67) | 57.1 ± 16.9 | (40–74) | 40.8 ± 7.5 | (33–48) | 50.7 ± 13.0 | (38–64) | 0.145 |
Note. WBC = white blood cell count, RBC = red blood cell count, HBG = hemoglobin, HCT = hematocrit, PLTS = platelet count, MCV = mean corpuscular volume, MCH = mean corpuscular hemoglobin, MCHC = mean corpuscular hemoglobin concentration, RDW = red cell distribution width, LYMP = lymphocytes, MONO = monocytes, EOSI = eosinophils, BASO = basophils, and HETE = heterophils.