Table 3. Levels of aflatoxin contamination in the commercial food grains and poultry feeds.
| Sample source | Sample type | N | n | Total aflatoxin concentration (ng/gm) | ||
|---|---|---|---|---|---|---|
| Mean ± SD | SE mean | Min - Max | ||||
| Nigeria | Chicken feed | 48 | 25 | 28.47 ± 21.4 | 4.3 | 1.0–79.0 |
| Rice | 21 | 16 | 29.64 ± 22.89 | 5.7 | 5.1–81.8 | |
| Wheat | 21 | 14 | 46.36 ± 40.06 | 10.7 | 1.4–93.6 | |
| Maize | 21 | 13 | 28.38 ± 12.91 | 3.5 | 9.4–49.8 | |
| Peanut | 21 | 12 | 37.52 ± 37.42 | 10.8 | 1.5–87.3 | |
| Malaysia | Chicken feed | 44 | 26 | 19.5 ± 11.72 | 0.7 | 7.2–53.2 |
| Rice | 11 | 7 | 6.52 ± 3.83 | 1.4 | 4.9–11.9 | |
| Wheat | 11 | 5 | 28.30 ± 24.1 | 10.4 | 14.2–71.15 | |
| Maize | 11 | 3 | 15.54 ± 12.26 | 7.1 | 4.1–26.7 | |
| Peanut | 11 | 4 | 16.42 ± 6.75 | 3.4 | 8.6–24.8 | |
Note: Values were obtained as the mean of triplicate. The letter N represents the total number of samples analyzed, n represents the total number of positive samples, SD is the standard deviation, SE is the standard error, and min and max are the minimum and maximum levels of aflatoxin contamination, respectively.