Inhibitory Activity of Illicium verum Extracts against Avian Viruses

Table 2

Absorbance means of the antiviral activity of Illicium verum extracts against infectious bursal disease virus in the three adding methods.

Concentrations (mg/ml)	Preinoculation			Postinoculation			Simultaneous inoculation
	100MOH	50MOH	WA	100MOH	50MOH	WA	100MOH	50MOH	WA^1
3.9	0.181^b	0.185^b	0.185^c	0.183^b	0.164^b	0.172^b	0.205^d	0.198^d	0.277^d
1.9	0.183^b	0.195^b	0.193^c	0.192^b	0.169^b	0.191^b	0.187^d	0.206^d	0.338^c
0.97	0.184^b	0.183^b	0.220^c	0.197^b	0.178^b	0.181^b	0.226^cd	0.216^d	0.343^bc
0.48	0.195^b	0.190^b	0.303^b	0.168^b	0.167^b	0.168^b	0.356^b	0.325^b	0.391^b
0.24	0.216^b	0.229^b	0.321^b	0.181^b	0.191^b	0.189^b	0.374^b	0.292^bc	0.288^d
Virus control	0.226^b	0.226^b	0.226^c	0.211^b	0.211^b	0.211^b	0.265^c	0.265^c	0.265^d
Cell control	0.412^a	0.412^a	0.412^a	0.409^a	0.409^a	0.409^a	0.458^a	0.458^a	0.458^a
value	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
SEM	0.01	0.01	0.02	0.01	0.01	0.01	0.01	0.01	0.01

Means within a column with different subscripts are significantly different (). ¹100MOH = absolute methanol extract; 50MOH = 50% methanol extract; WA = water extract.