Abstract：
: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.
journal_name
Ecotoxicol Environ Safjournal_title
Ecotoxicology and environmental safetyauthors
Virant Celestina T,Kolar L,Gobec I,Kuzner J,Flajs VC,Pogacnik M,Erzen NKdoi
10.1016/j.ecoenv.2009.08.008subject
Has Abstractpub_date
2010-01-01 00:00:00pages
18-23issue
1eissn
0147-6513issn
1090-2414pii
S0147-6513(09)00168-7journal_volume
73pub_type
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