University of Ljubljana, Veterinary Faculty, Gerbiceva 60, SI-1000 Ljubljana, Slovenia.
Ecotoxicol Environ Saf. 2010 Jan;73(1):18-23. doi: 10.1016/j.ecoenv.2009.08.008. Epub 2009 Sep 6.
Factors influencing fate of avermectins (abamectin, doramectin) in faeces of treated sheep were investigated under different experimental conditions. In the laboratory, concentrations of both avermectins were declined in homogenised faeces of treated animals until day 14 of exposure, regardless of experimental conditions. After that day, no significant decrease in concentrations was observed till the end of the experiment. Established DT(50) did not exceed 9 days. In the karst pasture, an average DT(50) of 27 days was established for abamectin and 23 days for doramectin in natural faeces of treated sheep. In the compost mixture, doramectin concentration was decreased by 38.9+/-2.6% during 21 days of the thermophilic phase of composting. Therefore, DT(50) was not established. A possible influence of moisture content of sheep faeces on concentrations of avermectins was observed.
研究了在不同实验条件下，处理过的绵羊粪便中阿维菌素（阿维菌素、多拉菌素）命运的影响因素。在实验室中，无论是在何种实验条件下，处理过的动物粪便中的两种阿维菌素浓度都在暴露的第 14 天下降，之后，直到实验结束，浓度都没有明显下降。建立的 DT（50）不超过 9 天。在喀斯特草原上，在处理过的绵羊的天然粪便中，阿维菌素的平均 DT（50）为 27 天，多拉菌素为 23 天。在堆肥混合物中，多拉菌素的浓度在堆肥高温阶段的 21 天内下降了 38.9+/-2.6%。因此，没有建立 DT（50）。观察到绵羊粪便的水分含量可能对阿维菌素的浓度有影响。
