Modelling the impact of targeted anthelmintic treatment of cattle on dung fauna

A - Papers appearing in refereed journals

Cooke, A. S., Morgan, E. R. and Dungait, J. A. J. 2017. Modelling the impact of targeted anthelmintic treatment of cattle on dung fauna. Environmental Toxicology And Pharmacology. 55, pp. 94-98.

AuthorsCooke, A. S., Morgan, E. R. and Dungait, J. A. J.
Abstract

The insecticidal properties of many anthelmintics pose a risk to dung fauna through the effects of drug residues in dung on the activity, oviposition and development of dung-dwelling invertebrates. Reductions in dung fauna numbers can inhibit dung degradation, which may impact biodiversity and nutrient cycling on farms. A simulation model was created to predict the impact of antiparasitic drugs on cattle dung fauna, and calibrated using published data on the dung-breeding fly Scathophaga stercoraria. This model was then tested under different effective dung drug concentrations (EC) and proportions of treated cattle (PT) to determine the impact under different application regimens. EC accounted for 12.9% of the observed variation in S. stercoraria population size, whilst PT accounted for 54.9%. The model outputs indicate that the tendency within veterinary medicine for targeted selective treatments (TST), in order to attenuate selection for drug resistance in parasite populations, will decrease the negative impacts of treatments on dung fauna populations by providing population refugia. This provides novel evidence for the benefits of TST regimens on local food webs, relative to whole-herd treatments. The model outputs were used to create a risk graph for stakeholders to use to estimate risk of anthelminthic toxicity to dung fauna.

KeywordsAnthelmintic resistance; Helminth; Antiparasitic; Targeted selective treatment; Refugia; Agriculture; Environment
Year of Publication2017
JournalEnvironmental Toxicology And Pharmacology
Journal citation55, pp. 94-98
Digital Object Identifier (DOI)doi:10.1016/j.etap.2017.07.012
Web address (URL)https://www.sciencedirect.com/science/article/pii/S1382668917302016?via%3Dihub
Open accessPublished as ‘gold’ (paid) open access
FunderBiotechnology and Biological Sciences Research Council
Funder project or codeSWBio DTP PhD studentship
S2N - Soil to Nutrition [ISPG]
S2N - Soil to Nutrition - Work package 1 (WP1) - Optimising nutrient flows and pools in the soil-plant-biota system
Publisher's version
Output statusPublished
Publication dates
Online07 Aug 2017
Publication process dates
Accepted24 Jul 2017
Copyright licenseCC BY
PublisherElsevier Science Bv
ISSN1382-6689

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