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Evaluation of eco-toxicological effects of the parasiticide moxidectin in comparison to ivermectin in 11 species of dung flies.(Report)

Blanckenhorn, Wolf U. ; Puniamoorthy, Nalini ; Scheffczyk, Adam ; Rombke, Jorg

Ecotoxicology and Environmental Safety, March 1, 2013, Vol.89, p.15(6) [Tạp chí có phản biện]

ISSN: 0147-6513

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  • Nhan đề:
    Evaluation of eco-toxicological effects of the parasiticide moxidectin in comparison to ivermectin in 11 species of dung flies.(Report)
  • Tác giả: Blanckenhorn, Wolf U. ; Puniamoorthy, Nalini ; Scheffczyk, Adam ; Rombke, Jorg
  • Chủ đề: Ivermectin -- Analysis ; Veterinary Antiparasitic Agents -- Analysis
  • Là 1 phần của: Ecotoxicology and Environmental Safety, March 1, 2013, Vol.89, p.15(6)
  • Mô tả: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ecoenv.2012.10.030 Byline: Wolf U. Blanckenhorn (a), Nalini Puniamoorthy (a), Adam Scheffczyk (b), Jorg Rombke (b) Keywords: Dung community; Insect; Musca; Scathophaga; Toxicological test; Sepsidae Abstract: A standardized bioassay previously developed with ivermectin for the yellow dung fly (Scathophagidae) and the face fly (Muscidae) was applied to test the response of 11 dung fly species to the presumably less toxic parasiticide moxidectin. The results were compared to existing data for the same species tested with ivermectin, albeit two new species (Scathophaga suilla and Musca domestica) were tested here with both the substances. Estimated lethal effect concentrations LC50 at which 50% of the flies died ranged more than tenfold from 0.012mg moxidectin/kg fresh dung for Sepsis neocynipsea (Sepsidae) to 0.140mg moxidectin/kg fresh dung for the house fly Musca domestica (Muscidae). In most of the species, we additionally revealed sub-lethal effects at lower moxidectin concentrations in terms of retarded growth and development and reduced body size. Mortality thresholds were about ten times higher for moxidectin than for ivermectin, hence moxidectin is indeed less toxic than ivermectin in absolute terms. Crucially, we obtained strong correlations among the 11 tested fly species in both lethal and sub-lethal responses to the two substances, such that species relatively sensitive to ivermectin were also relatively sensitive to moxidectin. Such correlations are expected if the two substances are structurally related and function in the same manner by disturbing ion channel transport. Methodologically speaking, all species used proved suitable for toxicological testing of parasiticides. Author Affiliation: (a) Institut fur Evolutionsbiologie & Umweltwissenschaften, Universitat Zurich-Irchel, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland (b) ECT Oekotoxikologie GmbH Bottgerstra[sz]e 2-14, D-65439 Florsheim, Germany Article History: Received 9 August 2012; Revised 24 October 2012; Accepted 26 October 2012
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0147-6513

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