Effects of the Antiparasitic Drug Moxidectin in Cattle Dung on Zooplankton and Benthic Invertebrates and its Accumulation in a Water–Sediment System

Effects of the Antiparasitic Drug Moxidectin in Cattle Dung on Zooplankton and Benthic... Two anthelmintic macrocyclic lactones—ivermectin and moxidectin—have revolutionized parasite control in cattle. These drugs are only partly metabolized by livestock, and the main route of excretion is via feces. In seasonally inundated flood - plains, cattle feces come into direct contact with surface water. Important differences in pharmacokinetics and pharmacody - namics between these drugs may bear on their ecotoxicology in aquatic ecosystems. Moxidectin strongly binds to organic matter and thereby may be consumed in aquatic food webs, but there is a scarcity of data on toxicity to freshwater inverte- brates. The objectives of this work were to determine the effect of moxidectin spiked in cattle dung on survival and growth of three representative aquatic invertebrates: the zooplankton Ceriodaphnia dubia, the amphipod Hyalella curvispina, and the snail Pomacea canaliculata. Moxidectin-laced dung was added in microcosms and concentrations were measured in water, sediment + dung, roots of the aquatic plant Salvinia biloba, and the aforementioned invertebrates. The influence of moxidectin on nutrient concentrations was also evaluated. Dung was spiked with moxidectin to attain concentrations of 750, 375 and −1 250 µg kg dung fresh weight, approximating those found in cattle dung at days 2, 3, and 5 following subcutaneous injection. Concentrations of moxidectin http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Environmental Contamination and Toxicology Springer Journals

Effects of the Antiparasitic Drug Moxidectin in Cattle Dung on Zooplankton and Benthic Invertebrates and its Accumulation in a Water–Sediment System

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Environment; Ecotoxicology; Pollution, general; Environmental Health; Environmental Chemistry; Soil Science & Conservation; Monitoring/Environmental Analysis
ISSN
0090-4341
eISSN
1432-0703
D.O.I.
10.1007/s00244-018-0539-5
Publisher site
See Article on Publisher Site

Abstract

Two anthelmintic macrocyclic lactones—ivermectin and moxidectin—have revolutionized parasite control in cattle. These drugs are only partly metabolized by livestock, and the main route of excretion is via feces. In seasonally inundated flood - plains, cattle feces come into direct contact with surface water. Important differences in pharmacokinetics and pharmacody - namics between these drugs may bear on their ecotoxicology in aquatic ecosystems. Moxidectin strongly binds to organic matter and thereby may be consumed in aquatic food webs, but there is a scarcity of data on toxicity to freshwater inverte- brates. The objectives of this work were to determine the effect of moxidectin spiked in cattle dung on survival and growth of three representative aquatic invertebrates: the zooplankton Ceriodaphnia dubia, the amphipod Hyalella curvispina, and the snail Pomacea canaliculata. Moxidectin-laced dung was added in microcosms and concentrations were measured in water, sediment + dung, roots of the aquatic plant Salvinia biloba, and the aforementioned invertebrates. The influence of moxidectin on nutrient concentrations was also evaluated. Dung was spiked with moxidectin to attain concentrations of 750, 375 and −1 250 µg kg dung fresh weight, approximating those found in cattle dung at days 2, 3, and 5 following subcutaneous injection. Concentrations of moxidectin

Journal

Archives of Environmental Contamination and ToxicologySpringer Journals

Published: May 30, 2018

References

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