Disposition kinetics of orbifloxacin in tissues of crucian carp (Carassius auratus) following a single intramuscular administration
文献类型： 外文期刊
作者： Yang, Y. R. 1 ; Yang, F. 2 ; Sun, N. 3 ; Wang, G. Y. 2 ;
作者机构： 1.Huanghuai Univ, Coll Biol & Food Engn, Zhumadian 463000, Peoples R China
2.Henan Univ Sci & Technol, Coll Anim Sci & Technol, Dept Basic Vet Med, Luoyang 471023, Peoples R China
3.Chinese Acad Agr Sci, Inst Special Econ Anim & Plants, Key Lab Special Anim Epidem Dis, Changchun 130112, Jilin, Peoples R China
关键词： Crucian carp; Disposition kinetics; Intramuscular injection; Orbifloxacin; Tissue depletion
期刊名称：IRANIAN JOURNAL OF VETERINARY RESEARCH （ 影响因子：1.376； 五年影响因子：1.346 ）
ISSN： 1728-1997
年卷期： 2019 年 20 卷 2 期
页码：
收录情况： SCI
摘要： Background: Orbifloxacin is being widely used in China to treat fish infections in an extra-label manner, which may cause its potential residues in edible tissues. Aims: The purpose of this study was to determine the disposition kinetics of orbifloxacin in crucian carp (Carassius auratus) following intramuscular administration for its further safe application in aquaculture industry. Methods: Tissue samples of skin, muscle, kidney, and liver were collected from six crucian carps reared at 25 degrees C at 5, 10, 15, 30, 45 min, 1, 2, 4, 6, 12, 24, 48, 72, and 96 h following a single intramuscular injection at 7.5 mg/kg body weight (BW). The orbifloxacin concentrations in tissues were determined using a high-performance liquid chromatography (HPLC) method with a fluorescence detector, then average concentrations versus time data were subjected to non-compartmental analysis to obtain the kinetic parameters. Results: The peak concentration of 5.68 +/- 0.03 mu g/g was calculated in kidney at 2 h, followed by muscle (5.51 +/- 0.01 mu g/g) at 4 h, liver (4.84 +/- 0.20 mu g/g) at 2 h, and skin (4.27 +/- 0.08 mu g/g) at 4 h. Area under concentration-time curve was calculated as 79.22, 94.72, 118.65, and 129.02 h.mu g/g in kidney, liver, skin, and muscle, respectively. And the elimination half-lives were determined as 18.17, 18.41, 18.77, and 19.11 h in skin, kidney, muscle, and liver, respectively. Conclusion: It was shown that orbifloxacin was well distributed into tissues while relatively slowly eliminated in crucian carp reared at 25 degrees C following a single intramuscular injection.
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