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Results of an international ring test with the dung fly Musca autumnalis in support of a new OECD test guideline


Römbke, Jörg; Barrett, Katie; Blanckenhorn, Wolf U; Hargreaves, Tom; Kadiri, Nassera; Knäbe, Silvio; Lehmhus, Jörn; Lumaret, Jean-Pierre; Rosenkranz, Boris; Scheffczyk, Adam; Sekine, Tatsuya (2010). Results of an international ring test with the dung fly Musca autumnalis in support of a new OECD test guideline. Science of the Total Environment, 408(19):4102-4106.

Abstract

A standardized bioassay using the face fly, Musca autumnalis L (Diptera: Muscidae), was developed to test the lethal and sublethal toxicity of parasiticide residues in livestock dung. The repeatability of this test was assessed for the parasiticide ivermectin in seven tests performed in four laboratories in Germany and France. Additional results of limit tests were provided by two laboratories from the UK. Test results had an acceptable range of heterogeneity. The calculated effect concentration at which 50% emergence was observed (EC50) averaged 4.65 +/- 2.17 (Standard Deviation (SD) mu g ivermectin/kg fresh dung (range: 1.20-7.7)). Effects on emergence were, with one exception, not observed below the No Observed Effect Concentration (NOEC) ranging between 1.11 and 3.33 mu g ivermectin/kg. No effect on development time was observed. We conclude that the face fly is suitably sensitive, and the methods sufficiently repeatable, to support use of this standardized bioassay by the international community in the registration of new veterinary pharmaceuticals. Following these considerations, this species was accepted as a possible test organism in a recently published OECD Guideline (No. 228). (c) 2010 Elsevier B.V. All rights reserved.

Abstract

A standardized bioassay using the face fly, Musca autumnalis L (Diptera: Muscidae), was developed to test the lethal and sublethal toxicity of parasiticide residues in livestock dung. The repeatability of this test was assessed for the parasiticide ivermectin in seven tests performed in four laboratories in Germany and France. Additional results of limit tests were provided by two laboratories from the UK. Test results had an acceptable range of heterogeneity. The calculated effect concentration at which 50% emergence was observed (EC50) averaged 4.65 +/- 2.17 (Standard Deviation (SD) mu g ivermectin/kg fresh dung (range: 1.20-7.7)). Effects on emergence were, with one exception, not observed below the No Observed Effect Concentration (NOEC) ranging between 1.11 and 3.33 mu g ivermectin/kg. No effect on development time was observed. We conclude that the face fly is suitably sensitive, and the methods sufficiently repeatable, to support use of this standardized bioassay by the international community in the registration of new veterinary pharmaceuticals. Following these considerations, this species was accepted as a possible test organism in a recently published OECD Guideline (No. 228). (c) 2010 Elsevier B.V. All rights reserved.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Evolutionary Biology and Environmental Studies
Dewey Decimal Classification:570 Life sciences; biology
590 Animals (Zoology)
Language:English
Date:September 2010
Deposited On:20 Jan 2011 16:05
Last Modified:07 Dec 2017 05:48
Publisher:Elsevier
ISSN:0048-9697
Publisher DOI:https://doi.org/10.1016/j.scitotenv.2010.05.027
Other Identification Number:ISI:000280917300017

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