Use this list of as a reference when talking to your veterinarian about preventing common parasites from infecting your livestock.
Each livestock species is vulnerable to different parasites. The world of parasite control is constantly changing, and yourveterinarian is your best ally to determine which parasites are impacting your herd and how to deal with them usingmedications and farm-management techniques.
Read below to find out what worms might be living in your barnyard and what anthelmintics—drugs used to combat internalparasites—might best control them. You’ll find these anthelmintics in different deworming medications. Don’t forget that manyof the parasites listed below could be resistant to many of the dewormers listed. Follow veterinary recommendations to haveyour animals tested and treated accordingly.
Cattle Parasite: Stomach worm and lungwormAnthelmintics: levamisole, fenbendazole, oxfendazole, albendazole, eprinomectin, doramectin, ivermectin, moxidectin
Parasite: TapewormAnthelmintics: oxfendazole, albendazole
Parasite: Common liver flukeAnthelmintic: clorsulon
Swine Parasite: Large roundworm (Ascarids)Anthelmintics: ivermectin, fenbendazole, levamisole, pyrantel, dichlorvos, piperazine (adult stage); fenbendazole (migrating,infective); fenbendazole, pyrantel (infective)
Parasite: WhipwormAnthelmintics: fenbendazole, dichlorvos
Parasite: Nodular wormAnthelmintics: ivermectin, fenbendazole, levamisole, pyrantel, dichlorvos, piperazine
Parasite: LungwormAnthelmintics: fenbendazole, ivermectin, levamisole
Parasite: Kidneyworm (adult) Anthelmintics: fenbendazole, levamisole
Parasite: Kidneyworm (larvae in liver)Anthelmintic: fenbendazole
Parasite: LungwormAnthelmintic: fenbendazole
Parasite: StrongyloidesAnthelmintics: ivermectin, levamisole
Poultry Parasite: Roundworm (Ascarids) Anthelmintics: albendazole, ivermectin, levamisole, piperazine
Parasite: Cecal wormsAnthelmintics: albendazole, ivermectin, levamisole
Anthelmintics: albendazole, ivermectin, levamisole
Parasite: TapewormsAnthelmintic: albendazole
Parasite: Coccidia (Eimeria)Anthelmintics: Vaccinate newly-hatched birds.
Note: Piperazine is the only dewormer approved for poultry. Other chemicals may be prescribed off-label by a veterinarian.
Horses Parasite: Large strongyle (Strongylus vulgaris, S. equinus and S. endentatus) or bloodwormAnthelmintics: broad-spectrum dewormers for adult stages, moxidectin, ivermectin and fenbendazol (administered at doubledose for five days in a row) for migrating phase
Parasite: Small strongyle (cyathostome)Anthelmintics: ivermectin and moxidectin for adult stages and moxidectin and fenbendazole (administered at double dosefor five days in a row) for the adult and encysted stage. Ninety-five percent of populations have an inherited resistance tobenzimidazole and 50 percent to pyrantel, so check with your vet before using a dewormer from this group.
Parasite: Roundworms (Ascarid)Anthelmintics: ivermectin, moxidectin, fenbendazole, pyrantel pamoate
Parasite: Bot (Gasterophilus intestinalis)Anthelmintics: ivermectin, moxidectin.
Parasite: Pinworm (Oxyuris equi, common pinworm; Probstmayria vivipara, minute pinworm) Anthelmintics: ivermectin, moxidectin, fenbendazole
Parasite: Tapeworm (Anoplocephala perfoliata, A. magna)Anthelmintics: praziquantel
Small Ruminants Parasite: Barber pole worm (Haemonchus contortis)Anthelmintics: ivermectin, moxidectin, levamisole, fenbendazole, albendazole
Parasite: Small brown stomach worm (Ostertagia circumcinta)Anthelmintics: ivermectin, moxidectin, levamisole, fenbendazole, albendazole
Parasite: TapewormAnthelmintics: benzimidazoles
Parasite: LungwormAnthelmintics: ivermectin, moxidectin
Parasite: Liver flukeAnthelmintics: albendazole, clorsulon
Parasite: CoccidiaAnthelmintics: sulfa drugs, amprolium
Parasite: Meningeal worm or deer or brain worm (a parasite of the white tail deer; Paralaphostrongylus tenius)Anthelmintics: anti-inflammatory drugs, levamisol, ivermectin, albendazole, fenbendazole, thiabendazole
Note: Only fenbendazole and rumatel are FDA-approved for use in goats. Other classes must be prescribed off-label by aveterinarian.
About the Author: Sharon Biggs Waller is an award-winning writer and author of Advanced English Riding (BowTie Press,2007). She lives on a 10-acre farm in northwestern Indiana with her husband, Mark, 75 chickens, two Lamancha goats, twohorses and an assortment of cats and dogs.
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