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| pH section | 1 day | 2 days | 3 days | Number of deaths | Death rate (%) |
|---|---|---|---|---|---|
| pH 4.0 | 0 | 0 | 0 | 0 | 0 |
| pH 6.0 | 4.00±2 | 8.33±9 | 15.67±7 | 28.00±14 | 8.43 |
| pH 8.0 | 7.33±4 | 7.67±3 | 7.33±6 | 22.33±0.58 | 6.44 |
