An investigation into aflatoxin M 1 in slaughtered fattening pigs and awareness of aflatoxins in Vietnam

BMC Veterinary Research

Table 2 Distribution of aflatoxin M₁ levels in pigs from five provinces in Vietnam

Province (No.)	Samples above LOD (% with 95% CI)^a	Mean (μg/kg)^a	Median (μg/kg)^a	Range (μg/kg)^a
Hanoi (385)	292 (75.84, 95% CI 71.25–80.04)	0.41	0.19	<LOD - 8.05
Son La (383)	316 (82.51, 95% CI 78.32–86.18)	1.23	0.32	<LOD - 7.35
Nghe An (375)	245 (65.33, 95% CI 60.28–70.15)	0.24	0.18	<LOD - 1.42
Dak Lak (384)	167 (43.49, 95% CI 38.47–48.61)	0.50	0.18	<LOD - 13.66
An Giang (393)	15 (3.82, 95% CI 2.15–6.22)	0.19	0.17	<LOD - 0.30
Total (1920)	1035 (53.90, 95% CI 51.64–56.15)	0.63	0.20	<LOD - 13.66

^aMean and median were calculated from the samples above limit of detection (LOD ≥ 0.15 μg/kg)

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