Exposure of tilapia (Oreochromis niloticus) to the antibiotic florfenicol in water: determination of the bioconcentration factor and the withdrawal period

被引:10
|
作者
Shiroma, Leticia Sayuri [1 ]
Bottoli, Carla Beatriz Grespan [1 ]
Jonsson, Claudio Martin [2 ]
Queiroz, Sonia C. N. [3 ]
机构
[1] Univ Estadual Campinas, Inst Chem, POB 6154, BR-13083970 Campinas, SP, Brazil
[2] Embrapa Meio Ambiente, Lab Ecotoxicol & Biosseguranca, Rodovia SP 340,Km 127,5 S-N, BR-13918110 Jaguariuna, SP, Brazil
[3] Embrapa Meio Ambiente, Lab Residuos & Contaminantes, Rodovia SP 340,Km 127,5 S-N, BR-13918110 Jaguariuna, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
Florfenicol amine; Bioconcentration; Withdrawal period; Oreochromis; Residues; Antibiotics;
D O I
10.1007/s11356-021-13327-5
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The demand for healthier foods with high nutritional value has resulted in intensive fish farming. In this production system, high-frequency infections occur, and antibiotics are administrated for control. Only two antibiotics are allowed for use in Brazilian aquaculture, one of which is florfenicol. In this work, a bioconcentration assay was performed to assess the accumulation of florfenicol in the muscle of Nile tilapia (Oreochromis niloticus). Tilapia was evaluated as it is the most produced fish species in Brazil. The fish were exposed to florfenicol at a nominal concentration of 10 mg/L, through the water. Muscle and water were collected at 0, 1.5, 3, 6, 24, and 48 h during the exposure phase and at 1.5, 3, 6, 24, 48, and 120 h during the depuration phase. Quantification was performed using an LC-MS/MS. The results showed rapid absorption and elimination of the antibiotic (half-life, t(1/2) = 5 h), with low potential for accumulation of florfenicol in tilapia muscles. The study was performed to determine the bioconcentration factor (BCF) and withdrawal period of florfenicol, being 0.05 mL/mu g and 1.8 h, respectively. The results contribute to set protocols for the safe use of florfenicol in tilapia transport, avoiding residues in fish that may pose risks to human health.
引用
收藏
页码:39026 / 39034
页数:9
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