Time profile of abamectin and doramectin excretion and degradation in sheep faeces

Environmental Pollution
Lucija KolarNevenka Kozuh Erzen

Abstract

We studied abamectin and doramectin excretion and their degradation in sheep faeces under field conditions on pasture after a single subcutaneous dose (0.2mg/kg body weight). In the excretion experiment, maximal abamectin concentration (1277 ng/g dry faeces) was detected on day 3, while doramectin concentration showed two peaks (2186 and 1780 ng/g dry faeces on days 2 and 5, respectively). Both avermectins were excreted at approximately the same rate (k=0.23 day(-1) for abamectin and 0.19 day(-1) for doramectin). In the field, a rapid loss of abamectin and doramectin from sheep faeces was seen during the first 32 days after which concentrations remained constant at approximately 77 ng/g and 300 ng/g, respectively. The half life values (DT(50)) for abamectin and doramectin dissipation from sheep faeces were 23 and 22 days, respectively, during the first 32 days. Dissipation of both avermectins was strongly correlated with moisture content of the faeces.

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Citations

Sep 11, 2010·Ecotoxicology and Environmental Safety·Rubén PérezMargarita Arboix
Sep 9, 2009·Ecotoxicology and Environmental Safety·Tina Virant CelestinaNevenka Kozuh Erzen
Mar 1, 2016·Chemosphere·Andreza Camilotti Dionisio, Susanne Rath
Apr 9, 2016·Chemosphere·Shahla Hosseini Bai, Steven Ogbourne
Jan 8, 2013·Environmental Pollution·Heather M ColemanStuart J Khan
Apr 17, 2007·Environmental Pollution·Lucija KolarCornelis A M van Gestel
Oct 27, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Athir BoukhrissaHamid Aït-Amar
May 16, 2013·Journal of Environmental Quality·A M P NetthisingheK R Sistani
Jan 28, 2021·Parasitology Research·M JuncoC A Saumell
Jul 23, 2008·Journal of Agricultural and Food Chemistry·Juan Pablo EscaladaNorman A García
Aug 9, 2011·Journal of Agricultural and Food Chemistry·María Del Mar Gil-DíazMaria Carmen Lobo

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