Inhibitory Activity of Illicium verum Extracts against Avian Viruses

Table 3

Absorbance means of the antiviral activity of Illicium verum extracts against infectious laryngotracheitis 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	0.187^c	0.181^b	0.208^c	0.256c	0.217^b	0.195^b	0.349^b	0.308^b	0.325^b
1.9	0.186^c	0.185^b	0.193^c	0.353b	0.199^b	0.217^b	0.271^c	0.317^b	0.357^b
0.97	0.194^c	0.187^b	0.270^b	0.335b	0.203^b	0.206^b	0.206^d	0.303^b	0.358^b
0.48	0.249^b	0.196^b	0.301^b	0.374ab	0.217^b	0.196^b	0.196^d	0.318^b	0.369^b
0.24	0.260^b	0.204^b	0.316^b	0.265c	0.201^b	0.198^b	0.173^d	0.246^c	0.325^b
Virus control	0.186^c	0.186^b	0.186^c	0.204d	0.204^b	0.204^b	0.198^d	0.198^c	0.198^c
Cell control	0.412^a	0.412^a	0.412^a	0.409a	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	0.02	0.01	0.02	0.02	0.01	0.01	0.02	0.02	0.02

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