Blood Reference Intervals for Antillean Manatees (Trichechus manatus manatus) from Puerto Rico

Table 3

Mean and standard deviation hematology values for Antillean manatees from Puerto Rico for all sex classes (males and females, n = 70): males only, n = 33, and females only, n = 37, with ±1 standard deviation ranges in parentheses. Significant differences using values are indicated with an asterisk ().

Parameter	All manatee samples		Males		Females		values
	Mean ± SD	Range	Mean ± SD	Range	Mean ± SD	Range
WBC (10^9/L)	6.0 ± 2.0	(4.0–8.0)	5.8 ± 1.9	(3.9–7.7)	6.2 ± 2.1	(4.1–8.2)	0.539
RBC (10^6/mm^3)	2.7 ± 0.6	(2.1–3.3)	2.6 ± 0.6	(2.1–3.2)	2.7 ± 0.6	(2.1–3.4)	0.522
HBG (g/dL)	11.2 ± 2.3	(9.0–14)	10.9 ± 2.0	(8.9–13)	11.5 ± 2.4	(9.0–14)	0.322
HCT (%)	34.6 ± 6.4	(28–41)	34.2 ± 6.1	(28–40)	34.9 ± 6.8	(28–42)	0.646
PLTS (10^3/mm^3)	298.3 ± 91.3	(207–390)	269.9 ± 81.9	(188–352)	323.2 ± 93.3	(230–417)	0.047
Red blood cell indices
MCV (fL)	128.6 ± 8.2	(120–137)	128.3 ± 7.9	(120–136)	128.8 ± 8.6	(120–137)	0.824
MCH (pg)	41.1 ± 1.4	(40–43)	40.8 ± 1.3	(40–42)	41.4 ± 1.4	(40–43)	0.168
MCHC (g/dL)	32.2 ± 1.2	(31–34)	32.2 ± 1.1	(31–33)	32.2 ± 1.4	(31–34)	0.941
RDW (%)	18.0 ± 2.8	(15–21)	16.9 ± 2.2	(15–19)	18.9 ± 2.9	(16–22)	0.007
White blood cell differential
LYMP (%)	42.8 ± 14.5	(28–57)	42.2 ± 10.5	(32–53)	43.2 ± 17.2	(26–60)	0.776
MONO (%)	3.6 ± 2.3	(1–6)	3.4 ± 2.3	(1–6)	3.8 ± 2.4	(1–6)	0.584
EOSI (%)	1.0 ± 1.4	(0–3)	1.1 ± 1.5	(0–3)	0.9 ± 1.5	(0–2)	0.618
BASO (%)	0.3 ± 0.5	(0–1)	0.4 ± 0.6	(0–1)	0.3 ± 0.5	(0–1)	0.304
HETE (%)	52.3 ± 14.7	(38–67)	52.8 ± 10.7	(42–64)	51.8 ± 17.4	(34–69)	0.783

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.