Table-5.

The repeatability data of heavy metals in poultry feed.

Metal	Day	Spike concentration (mg/kg)	Overall mean concentration (n = 21) (mg/kg)	SD	CV%	Overall CV (%)
Pb	1–3	2.50	2.33	0.21	9.07	8.70
	1–3	5.00	4.78	0.46	9.61
	1–3	7.50	7.22	0.54	7.42
Cr	1–3	2.50	2.58	0.32	12.39	8.76
	1–3	5.00	4.58	0.42	9.27
	1–3	7.50	6.91	0.32	4.61
Cd	1–3	0.25	0.26	0.02	8.70	8.75
	1–3	0.50	0.46	0.05	10.96
	1–3	0.75	0.78	0.05	6.62

SD=Standard deviation, CV%=Coefficient of variation, Cr=Chromium, Cd=Cadmium, Pb=Lead