Some Haematological and Biochemical Investigations on Duck Virus Hepatitis following Administration of Glycyrrhizin

Table 2

Erythrogram of different experimental groups of ducklings before (at the 1st, 2nd, and the 3rd weeks) and after challenge (at the 4th week) (mean ± standard deviation).

		Groups
Parameters	Periods (weeks)	Control (1)		(2)	(3)	(4)	LSD
		Normal	After challenge	Glycyrrhizin	DHV vaccine	Glycyrrhizin + DHV vaccine
Red blood cell count (10^6/µL)	1	2.64±0.26		3.03^∗±0.19	1.95^∗±0.13	2.81±0.33	0.32
	2	2.93±0.39		3.30^∗±0.44	2.59^∗±0.26	3.23^∗±0.04	0.30
	3	3.01±0.43		3.40^∗±0.29	2.87±0.12	3.21±0.14	0.37
	4^#	3.04^b±0.40	1.75^∗±0.10	2.39^∗b±0.08	2.11^∗b±0.11	2.30^∗b±0.26	0.33
Packed cell volume (%)	1	37.32±1.84		43.08^∗±2.55	33.40^∗±2.96	39.20±1.92	3.12
	2	38.20±1.78		44.84^∗±1.88	35.10^∗±2.1	40.84^∗±1.88	2.60
	3	39.00±1.58		44.60^∗±3.84	37.80±1.92	41.40±1.94	3.30
	4^#	39.20^b±1.48	29.00^∗±1.05	33.72^∗b±2.48	33.00^∗b±0.70	34.00^∗b±2.54	2.62
Hemoglobin (g/dL)	1	12.64±0.21		14.68^∗±0.20	10.51^∗±0.35	13.08±0.63	0.52
	2	13.04±0.15		15.09^∗±0.09	10.76^∗±0.43	13.33±0.75	0.59
	3	13.13±0.25		15.00^∗±0.35	12.56±0.65	13.79±0.18	0.68
	4^#	13.14^b±0.62	7.50^∗±1.25	10.58^∗b±0.94	9.28^∗b±0.64	10.48^∗b±0.45	0.91
Mean corpuscular volume (fL)	1	151.32±14.02		142.49±3.69	171.00^∗±11.15	142.50±3.63	12.50
	2	132.84±5.07		135.39±8.69	132.80±11.81	133.75±10.26	12.47
	3	130.77±5.58		130.10±8.61	129.94±10.96	128.88±5.44	10.70
	4^#	140.33^b±8.11	165.71^∗±8.11	142.21^b±9.22	162.20^∗±15.46	144.54^b±9.22	14.47
MCHC (g/dL)	1	33.51±1.89		34.16±2.99	30.65^∗±1.33	32.52±1.31	2.81
	2	34.29±0.44		34.17±2.79	32.63±1.73	3.26±0.77	2.15
	3	33.78±0.50		33.34±1.07	33.22±0.67	33.26±0.77	1.05
	4^#	33.17^b±1.25	25.86^∗±1.20	31.52^b±3.21	27.82^∗±1.02	30.96^b±1.07	2.51

4^# After challenge (at the 4th week).
∗Significant compared to control normal group in the same row.
bSignificant compared to control-infected group at the 4th week.
DHV: duck hepatitis virus.
LSD: least significant difference.
MCHC: mean corpuscular hemoglobin concentration.