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To investigate the contamination status of quinolone veterinary drug residues in animal-derived foods sold in Guizhou Province and assess the dietary exposure risk.
From 2019 to 2023, a total of 818 samples of animal-derived foods were collected from nine cities (prefectures) in Guizhou Province to monitor quinolone veterinary drug residues.The average, maximum, P50, and P97.5 values were calculated, and dietary exposure risk was assessed using the point estimate method in conjunction with food intake data from the western region of China.
Different levels of enrofloxacin, ciprofloxacin, pefloxacin, and ofloxacin were detected in pork, chicken, eggs, freshwater fish, and freshwater shrimp. The detection rates for enrofloxacin, ciprofloxacin, pefloxacin, and ofloxacin were 5.50% (45/818), 2.44% (20/818), 0.37% (3/818),and 0.61% (5/818), respectively. The dietary exposure levels of quinolone veterinary drugs through animal-derived foods for different age groups were 0.06 to 5 300.22 ng/(kg·d) (3-5 years), 0.09 to 5 981.67 ng/(kg·d) (6-11 years), 0.05 to 4 080.37 ng/(kg·d) (12-17 years), 0.04 to 2,812.93 ng/(kg·d) (18-59 years), and 0.04 to 2 370.91 ng/(kg·d) (≥60 years). The risk ratios corresponding to the average, maximum, P50, and P97.5 values for enrofloxacin and ofloxacin ranged from 0.0 003 to 0.9 941.
The risk of dietary exposure to quinolone veterinary drugs through animal-derived foods in the Guizhou population is low; however, attention should be paid to the 3-11 age group.
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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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