Copper Oxide Wire Particles (COWP)
Copper oxide wire particles (COWP) have been shown to reduce barber pole worm infections in sheep and goats. More recent research has demonstrated that COWP may increase the efficacy of commercial dewormers. Members of the American Consortium for Small Ruminant Parasite Control have led the research efforts investigating the efficacy of COWP as an anthelmintic agent for sheep and goats.
Articles
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Use of copper oxide wire particles (COWP) to control barber pole worms in lambs and kids; J.M. Burke, J.E. Miller, and T.H. Terrill [March 2007].
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Copper oxide wire particles: keeping it safe. L.H. Williamson [Timely Topic, December 2015] | PDF
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Using Copper Oxide Wire Particles to Increase Dewormer Efficacy; J.M. Burke, J.E. Miller, T.H. Terrill, E.Smyth, and M. Acharya [Timely Topic, September 2016].
Conference Proceedings
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Copper Oxide Wire Particles to Control Haemonchus contortus in Sheep and Goats; Joan Burke, James Miller, and Thomas H. Terrill; 10th Anniversary Conference of the American Consortium for Small Ruminant Parasite Control [May 2013].
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Potential Newer Control Methods. Jim Miller, Joan Burke, and Thomas Terrill. W4: What Works With Worms Congress, Pretoria, South Africa [May 2015].
Factsheets
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Best Management Practices: Copper Oxide Wire Particles; Linda Coffey, NCAT-ATTRA, and tatania Stanton, Cornell University. [December 2024] --En Español--
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Tools for managing internal parasites in small ruminants: copper oxide wire particles; Linda Coffey, Margo Hale, Tom Terrill, Jorge Mosjidis, Jim Miller and Joan Burke; NCAT/ATTRA and Southern Consortium for Small Ruminant Parasite Control [2007].
Podcasts
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Copper oxide as a dewormer for goats. Joan Burke. USDA-ARS. For the Love Goats. [December 2020]
Research
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Administration of copper oxide wire particles in a capsule or feed for gastrointestinal nematode control in goats; J. Burke, F. Soli, J. Miller, T. Terrill, S. Wildeus, S. Shaik, W. Getz, and M. Vanguru; Veterinary Parasitology [March 2010].
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Control of gastrointestinal nematodes with copper oxide wire particles in a flock of lactating Polypay ewes and offspring in Iowa; J.M. Burke, D. Morrical, and J.E. Miller; Short communication: Veterinary Parasitology [March 2007].
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Dietary copper sulfate for control of gastrointestinal nematodes in goats. J.M. Burke and J.E. Miller. Veterinary Parasitology. [March 2008].
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Dose of Copper Oxide Wire Particles and Feed Supplement Level Influences Haemonchus Contortus Infection in Lambs; J. Burke, and J. Miller; Southern Section of the American Society of Animal Science [February 2004].
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Efficacy of copper oxide wire particles against gastrointestinal nematodes in sheep and goats; F. Soli, T.H. Terrill, S.A. Shaik, W.R. Getz, J.E. Miller, M. Vanguru, and J.M. Burke; Veterinary Parasitology [October 2009].
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The effectiveness of copper oxide wire particles as an anthelmintic in pregnant ewes and safety to offspring; J.M. Burke, J.E. Miller, and D.K. Brauer; Veterinary Parasitology [May 2005].
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Effect of copper oxide wire particles dosage and feed supplement level on Haemonchus contortus infection in lambs; J.M. Burke, J.E. Miller, D.D. Olcott, B.M. Olcott, and T.H. Terrill; Veterinary Parasitology [June 2004].
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Evaluation of low doses of copper oxide wires particles compared with levamisole for control of Haemonchus contortus in lambs; J.M. Burke and J.E. Miller; Veterinary Parasitology [February 2006].
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Evaluation of Multiple Low Dose Copper Oxide Wire Particle Boluses for Control of Haemonchus Contortus in Lambs; J. Burke and J. Miller; Veterinary Parasitology [June 2006].
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Interaction between copper oxide wire particles and Duddingtonia flagrans in lambs; J.M. Burke, J.E. Miller, M. Larsen, and T.H. Terrill; Veterinary Parasitology [June 2005].
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Persistence of the efficacy of copper oxide wire particles against Haemonchus contortus in sheep; A.J. Galindo-Barboza, J.F.J. Torres-Acosta, R. Cámara-Sarmiento, C.A. Sandoval-Castro, A.J. Aguilar-Caballero, N.F. Ojeda-Robertos, R. Reyes-Ramírez, E. Espana-Espãna; Veterinary Parasitology [2011].
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Persistence of the efficacy of copper oxide wire particles against Haemonchus contortus in South African goats; A.F. Vatta, P.J. Waller, J.B. Githiori, and G.F. Medley; Veterinary Parasitology [June 2012].
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Use of copper oxide wire particles to control gastrointestinal nematodes in goats; J.M. Burke, T.H. Terrill, R.R. Kallu, J.E. Miller, and J. Mosjidis; Journal of Animal Science [June 2007].
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Using copper oxide wire particles or sericea lespedeza to prevent a peri-parturient rise of gastrointestinal nematodes in sheep and goats; J. Burke, S. Orlik, J. Miller, T. Terrill, and J. Mosjidis; Livestock Science [July 2010].
Videos
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Copper oxide wire particle bolus. Reid Redden. Texas A&M AgriLife [2018] --En Español--
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How to administer COWP boluses. Jim Miller. NCAT-ATTRA [2018].
Last updated 12.01.24. Links verified 12.01.24.