[Objective] This study aimed to investigate the elimination regularity of ronidazole residues in chickens. [Method] Normal, healthy, 85-day-old Jinling broilers were selected as experimental chickens and fed with comp...[Objective] This study aimed to investigate the elimination regularity of ronidazole residues in chickens. [Method] Normal, healthy, 85-day-old Jinling broilers were selected as experimental chickens and fed with complete feed containing different concentrations of ronidazole. Ronidazole residues in chicken feather and edible tissues were detected by high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to compare the elimination regularity. [Result] Data analysis showed that the amount of ronidazole residues in chicken feather and edible tissues was positively correlated with the concentration of ronidazole administered. After drug withdrawal, there was a significant correlation between the elimination of ronidazole residues in chicken feather and edible tissues. Thus, the prediction model of ronidazole residues in chicken feather could be established. [Conclusion] This study could improve in vivo detection system of ronidazole residues and provide reference for monitoring and controlling drug residues in livestock and poultry oroduction.展开更多
This study was aimed to do the prediction of pesticide residues based on fuzzy system. Taking chlorpyrifos as an example, the Mathematic Fuzzy System was established by using the MRL values (maximum residue limits of...This study was aimed to do the prediction of pesticide residues based on fuzzy system. Taking chlorpyrifos as an example, the Mathematic Fuzzy System was established by using the MRL values (maximum residue limits of all kinds of pesticides in food) of the Matlab Fuzzy Toolbox to analyze and predict the degra- dation degree of pesticide residues of the same crop at different time periods of bagging treatment, with the aim to provide some theoretical guidances for solving practical problems in real life.展开更多
文摘[Objective] This study aimed to investigate the elimination regularity of ronidazole residues in chickens. [Method] Normal, healthy, 85-day-old Jinling broilers were selected as experimental chickens and fed with complete feed containing different concentrations of ronidazole. Ronidazole residues in chicken feather and edible tissues were detected by high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to compare the elimination regularity. [Result] Data analysis showed that the amount of ronidazole residues in chicken feather and edible tissues was positively correlated with the concentration of ronidazole administered. After drug withdrawal, there was a significant correlation between the elimination of ronidazole residues in chicken feather and edible tissues. Thus, the prediction model of ronidazole residues in chicken feather could be established. [Conclusion] This study could improve in vivo detection system of ronidazole residues and provide reference for monitoring and controlling drug residues in livestock and poultry oroduction.
基金The Youth Foundation of the Department of Education of Hebei Province in 2016(QN2016243)
文摘This study was aimed to do the prediction of pesticide residues based on fuzzy system. Taking chlorpyrifos as an example, the Mathematic Fuzzy System was established by using the MRL values (maximum residue limits of all kinds of pesticides in food) of the Matlab Fuzzy Toolbox to analyze and predict the degra- dation degree of pesticide residues of the same crop at different time periods of bagging treatment, with the aim to provide some theoretical guidances for solving practical problems in real life.