Can Co-Grazing Waterfowl Reduce Brainworm Risk for Goats Browsing in Natural Areas?
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Can Co-Grazing Waterfowl Reduce Brainworm Risk for Goats Browsing in Natural Areas?
Published Date
2022
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EcoHealth
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Article
Abstract
Goats browsing in woodlands, whether for livestock production goals or vegetation management (e.g., targeted grazing to control invasive plants), are at risk of meningeal worm ( Parelaphostrongylus tenuis ) infection. Indeed, up to 25% incidence has been observed in goats employed in vegetation management. Infection, which occurs via the consumption of an infected gastropod intermediate host, is potentially deadly in goats. We experimentally tested whether co-grazing with waterfowl could reduce goats’ exposure via waterfowl consumption of gastropods. Gastropods were sampled in a deciduous woodland before and after the addition of goats alone, goats and waterfowl, or a control with no animal addition. We found that goats browsing on their own increased the abundance of P. tenuis intermediate hosts; however, when goats co-grazed with waterfowl, these increases were not observed. Importantly, waterfowl did not significantly affect overall gastropod abundance, richness, or diversity. Thus, waterfowl co-grazing may effectively reduce goat contact with infectious gastropods without detrimentally affecting the gastropod community. While co-grazing goats with waterfowl may decrease their P. tenuis exposure risk, additional research is needed to confirm whether waterfowl can actually lower P. tenuis incidence.
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Minnesota Invasive Terrestrial Plants and Pests Center through the Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources
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10.1007/s10393-022-01579-7
Previously Published Citation
Marchetto, K. M., Linn, M. M., Larkin, D. J., & Wolf, T. M. (2022). Can Co-Grazing Waterfowl Reduce Brainworm Risk for Goats Browsing in Natural Areas? EcoHealth, 19(1), 135–144. https://doi.org/10.1007/s10393-022-01579-7
Suggested citation
Marchetto, Katherine M.; Linn, Morgan M.; Larkin, Daniel J.; Wolf, Tiffany M.. (2022). Can Co-Grazing Waterfowl Reduce Brainworm Risk for Goats Browsing in Natural Areas?. Retrieved from the University Digital Conservancy, 10.1007/s10393-022-01579-7.
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