Table 3.

Intra- and inter-assay coefficients of variation of goose astrovirus.

Standard copies/ul	Intra-assay variability			Inter-assay variability
	Mean	SD	CV(%)	Mean	SD	CV(%)
2.6 × 106	16.26	0.026	0.16	16.22	0.021	0.10
2.6 × 105	20.52	0.015	0.07	20.32	0.171	0.84
2.6 × 104	24.30	0.210	0.85	24.20	0.031	0.15
2.6 × 103	28.34	0.031	0.11	28.30	0.056	0.20
2.6 × 102	32.64	0.025	0.08	32.25	0.215	0.67
2.6 × 101	ND	ND	ND	ND	ND	ND
NTC	ND	ND	ND	ND	ND	ND