Factors influencing dissipation of avermectins in sheep faeces
| Autor: | Milan Pogačnik, Jernej Kužner, Vesna Cerkvenik Flajs, Tina Virant Celestina, Nevenka Kožuh Eržen, Ivan Gobec, Lucija Kolar |
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| Rok vydání: | 2010 |
| Předmět: |
Health
Toxicology and Mutagenesis engineering.material Biology Pasture Excretion Feces Soil chemistry.chemical_compound Animal science Ivermectin medicine Animals Doramectin Anthelmintics geography Sheep geography.geographical_feature_category Compost business.industry Public Health Environmental and Occupational Health General Medicine Pollution Biotechnology Bioavailability chemistry engineering Abamectin business medicine.drug |
| Zdroj: | Ecotoxicology and Environmental Safety. 73:18-23 |
| ISSN: | 0147-6513 |
| DOI: | 10.1016/j.ecoenv.2009.08.008 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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