Table 3.

Results from the Asian elephant (Elephas maximus) water deprivation test.^*

	Unit	Phase 1 median	Phase 1 IQI	T0 median	T1 median	ΔT0 T1	P value
PCV	%	—	—	43	44	No	0.23
TP-R	g/dl	8.2	7.6–8.4	8.0	8.5	Yes	<0.01
TP-B	g/dl	8.5	8.2–9.1	8.3	8.7	No	0.08
BUN	mg/dl	8.0	6.0–9.0	8.0	9.5	Yes	<0.01
Creatinine	mg/dl	1.7	1.48–1.80	1.6	1.5	No	0.06
FPO	mOsm/kg	262	257–269	259	275	Yes	<0.01
SFO	mOsm/kg	267	262–269	267	276	No	0.06

^*Phase 1 (n = 21) median and interquartile intervals (IQI) are shown for reader reference. Results from the phase 2 water deprivation test (n = 16) are shown as T₀ (initial blood sample) and T₁ (second blood sample); Δ = significant change; P values correspond to Wilcoxon signed-rank test results for paired T₀ and T₁ values. PCV = packed cell volume (not measured in phase 1); TP-R = total protein measured by refractometer; TP-B = total protein measured by biuret method; BUN = blood urea nitrogen; FPO = freezing point osmometer; SFO = simple formula osmolality (calculated). The average time of water deprivation was 16 hr 34 min; “No” and “Yes” indicate whether significant change occurred.