Full
Outline
To know the status of veterinary drug residues and assess the dietary exposure risk in 4 kinds of freshwater fish sold in the Taicang Area in 2025.
A total of 355 samples of freshwater fish were collected, and the residues of 16 kinds of veterinary drugs were detected, following the national standard method of determination. Coupling the dietary intake of residents, the index of food safety (IFS) was used to evaluate the dietary exposure risk of veterinary drug residues.
The total detection rate of veterinary drug residues in freshwater fish was 72.39% (257/355), with an exceedance rate of 5.92% (21/355). Among the 4 kinds of freshwater fish species, bream had the highest detection rate and exceeding rate of veterinary drug residues, which were 88.00% (66/75) and 17.33% (13/75), respectively. The 6 kinds of veterinary drug residues out of 16 kinds of veterinary drug residues were detected.The highest detection rate and exceeding rate were both for enrofloxacin (calculated as the sum of enrofloxacin and ciprofloxacin), which were 70.99% (252/355) and 5.35% (19/355), respectively. The dietary exposure of all age groups was in the range of 0.0025–2.0321 µg/(kg•d), with the IFS values in the range of 0.0007–0.6774.
The exposure risk of veterinary drug residues intake through freshwater fish among Taicang residents is relatively low, remaining within a safe level. The residue phenomenon of enrofloxacin is relatively common and should be attached importance.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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