期刊
SEPARATIONS
卷 9, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/separations9090261
关键词
antihelmintic; chromatography; mass spectrometry
This paper investigates the depletion of levamisole residues in animal tissues. The study finds that in cattle, sheep, goats, and pigs, the level of levamisole residues decreases to below the established limit within a specific time frame after treatment. Residue depletion is faster in chickens compared to turkeys.
In this paper, we set the waiting time for the elimination of levamisole residues at a safe level from tissues (muscles and organs) from animals treated with levamisole 10%-oral solution. We studied the depletion of levamisole residues by high performance liquid chromatography with a mass spectrometer (limit of quantification 2 mu g/kg) in the tissues of bovine, ovine, caprine, porcine and poultry (chickens and pigeons) after administration of levamisole (10 mg levamisole/kg body weight for cattle, sheep, goats, pigs and 20 mg levamisole/kg body weight for birds). We found that in cattle, sheep and goats at 7 days after treatment, the residues of levamisole in the liver and at 14 days and in the other tissues were below the established limit value. In pigs at 7 days, residues from all tissues were below the set limit value. Residue depletion in chickens treated with levamisole was rapid, such that 3 days after treatment, the residues in all tissues were below the set limit. Residue depletion was slower in turkeys than in chickens.
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