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To understand the detection of four prohibited veterinary drugs of fresh and live freshwater fish sold in Guangzhou by analyzing the test data from risk monitoring and supervision sampling, so as to provide reference basis for food safety supervision.
Through the Guangzhou Food Safety Risk Monitoring system and the Food Safety Supervision and Inspection Public Information report of Guangzhou Market Administration, the test results of fresh water fish samples collected from supermarkets, markets, and online e-commerce in Guangzhou from 2017 to 2021 were obtained. The detection of nitrofuran drugs, chloramphenicol, sodium pentachloro phenate, and malachite green drugs were analyzed.
The total detection rate of banned veterinary drugs in risk monitoring samples was 35.3% (84/238), and that in supervised sampling samples was 3.10% (118/3 806). The banned veterinary drugs with high detection rates of the two data sources were different. The risk monitoring rates of chloramphenicol and sodium pentachloro phenate were 17.23% (41/238) and 17.23% (41/238), respectively, and that of malachite green was 2.18% (83/3 806). The drug detection rate of the samples collected by risk monitoring in the network e-commerce link was 47.50% (19/40), which was the highest among all sampling links. The results of the two data sources showed that the detection rate of banned veterinary drugs in the wholesale market was high: 47.37% (18/38) and 4.13% (5/121),respectively.
The results of data analysis from the two sources complement each other and jointly reveal the problem of banned veterinary drug residues in fresh freshwater fish sold in Guangzhou from 2017 to 2021. It is suggested that the relevant departments pay more attention to the illegal use of chloramphenicol, sodium pentachloro phenate, and malachite green drugs.
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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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