闽东地区市售生鲜水产品中兽药残留监测与分析

    Monitoring and Analysis on Veterinary Drug Residues in Fresh Aquatic Products Sold in Eastern Fujian

    • 摘要: 监测闽东地区市售生鲜水产品中多种兽药残留的含量,从而了解本地区生鲜水产品中兽药残留污染的状况。通过随机采样法,于2019年从宁德市辖区、福安、霞浦、周宁、柘荣、古田等闽东地区采集生鲜水产品样品495份,样品经前处理后用LC-MS/MS检测恩诺沙星、氧氟沙星、硝基呋喃代谢物等多种兽药残留的含量。结果表明:闽东地区生鲜水产品中多种兽药残留均有不同程度的检出,采集的495份样品中,兽药残留检出121批次,检出率为24.44%(121/495)。其中,不合格产品15批次,不合格率3.03%(15/495)。不合格产品涉及恩诺沙星不合格3批次,氧氟沙星不合格10批次,硝基呋喃代谢物不合格2批次。闽东地区生鲜水产品中兽药残留存在不同程度的污染,表明本地区水产养殖过程中存在一定程度的兽药滥用现象,结果也表明,鱼类和牛蛙水产品养殖过程中兽药使用频率较虾蟹类及其他水产品高。

       

      Abstract: The contents of various veterinary drug residues in fresh aquatic products sold in Eastern Fujian were monitored, so as to understand the pollution status of veterinary drug residues in the fresh aquatic products in this region. By means of random sampling, 495 samples of fresh aquatic products were collected from Eastern Fujian including the municipal district of Ningde City, Fu'an, Xiapu, Zhouning, Zherong and Gutian in 2019, and the contents of various veterinary drug residues such as enrofloxacin, ofloxacin and nitrofuran metabolites in the samples were detected by LC-MS/MS after pretreatment. The results showed that many kinds of veterinary drug residues were detected at different levels in the fresh aquatic products sold in Eastern Fujian. Among the collected 495 samples, 121 batches of veterinary drug residues were detected, and the detectable rate was 24.44% (121/495). Among them, there were 15 batches of unqualified products, and the fraction defective was 3.03% (15/495). The unqualified products involved 3 batches of unqualified enrofloxacin, 10 batches of unqualified ofloxacin and 2 batches of unqualified nitrofuran metabolites. The various degrees of contamination of veterinary drug residues in the fresh aquatic products sold in Eastern Fujian indicated that there was a certain degree of veterinary drug abuse in the aquaculture in this region, and the results also showed that the usage frequency of veterinary drug in the aquaculture of fish and bullfrog was higher than that of shrimps, crabs and other aquatic products.

       

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