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An improved withdrawal interval calculation and risk assessment of doxycycline in crayfish (Procambarus clarkii) in the natural cultured environment

文献类型： 外文期刊

作者： Xu, Ning 1 ; Sun, Weiyu 1 ; Gong, Lve 1 ; Dong, Jing 1 ; Zhou, Shun 1 ; Liu, Yongtao 1 ; Yang, Yibin 1 ; Yang, Qiuhong 1 ; Ding, Yongzhen 4 ; Ai, Xiaohui 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, 8 Wuda Pk Rd 1, Wuhan 430223, Peoples R China

2.Hu Bei Prov Engn & Technol Res Ctr Aquat Prod Qual, Wuhan, Peoples R China

3.Wuhan Polytech Univ, Coll Food Sci & Engn, Wuhan 430023, Peoples R China

4.Minist Agr & Rural Affairs, Agroenvironm Protect Inst, 31 Fukang Rd, Tianjin 300191, Peoples R China

关键词： Withdrawal time; Risk assessment; Doxycycline; Statistical approach; Natural conditions; Crayfish

期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：8.1； 五年影响因子：7.7 ）

ISSN： 0963-9969

年卷期： 2023 年 166 卷

页码：

收录情况： SCI

摘要： Doxycycline is an important medicine in aquaculture for treating fish diseases. However, its excess use causes residue exceeding to threaten human health. So, this study aimed to estimate a reliable withdrawal time (WT) of doxycycline (DC) in crayfish (Procambarus clarkii) based on statistical approaches and conduct a risk assessment for human health in the natural environment. Samples were collected at predetermined time points and deter-mined by high-performance liquid chromatography. A novel statistical method was used to process the data of residue concentration. The homogeneity and linearity of the regressed line of data were evaluated by Bartlett's, Cochran's, and F tests. Outliers were excluded by establishing the standardized residual versus their cumulative frequency distribution on a normal probability scale. The calculated WT was 43 days in muscle of crayfish based on China and European stipulations. After 43 days, estimated daily intakes of DC were ranged from 0.022 to 0.052 mu g/kg/d. Hazard Quotients were ranged from 0.007 to 0.014, which were far less than 1. These results indicated that established WT could avoid health risks for humans resulting from DC's residue in crayfish.

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