Rumen Fluke - the facts
How should I approach the treatment of rumen fluke on my farm? It is important to remember that the detection of rumen fluke eggs in faecal samples, or the detection of the adults in small numbers in the rumen is not in itself a reason to institute specific control measures, as light infections appear to have no effect on animal health or productivity. The routine implementation of a preventive dosing regime for rumen fluke is rarely justified, except on farms where severe disease and losses have been confirmed in the past. Because of the rarity of severe outbreaks, such a control schemewould be best designed and tailored for the specific farm in question, following consultation with your own veterinary practitioner. Such a scheme would aim to use treatment in a strategic manner to reduce pasture contamination, in association with other measures mentioned previously.
Apart from the economic costs that arise from unnecessary use of any anti-parasitic drug, it is especially important to treat rumen fluke sensibly and sparingly, given that there is only one effective compound (oxyclozanide). The development of oxyclozanide-resistant strains of rumen flukemust be avoided and there is a heightened risk of resistance if a single compound like oxyclozanide is used indiscriminately over several years. It is important that management of rumen fluke is undertaken as part of a comprehensive parasite control programme that will control liver fluke, gut worms and lungworm (hoose) as well as rumen fluke.
Do not treat rumen fluke unless clinical signs are present
TECHNICAL WORKING GROUP Andrew Forbes (Chairperson) - School of VeterinaryMedicine, GlasgowUniversity, Mícheál Casey - DAFM Regional Veterinary Laboratory, Backweston, Charles Chavasse - Zoetis, Bosco Cowley - MSD Animal Health, Martin Danaher - Teagasc Food Research Centre Ashtown, John Gilmore - Veterinary Practitioner, Barbara Good - Teagasc, Athenry, Fintan Graham - Veterinary Practitioner, Ian Hogan - DAFM, Veterinary Laboratory Services, Maura Langan - Norbrook Laboratories, Jennifer McClure - ICBF, Grace Mulcahy - UCD School of Veterinary Medicine, Tom Murphy - Parasitology Specialist, DAFM, Maresa Sheehan, DAFM INTELLECTUAL PROPERTY All images contained in this leaflet are the property of AHI, or have been included with the permission of the owner. Please seek permission from AHI if you wish to use these images and provide the correct attribution of ownership when reproducing them. If reusing any other material in this leaflet, please attribute AHI as the source. Front cover photo courtesy of Pat Sheehan SLA, Cork RVL. Rumen Fluke egg photo courtesy of Jim O’Donovan RO, RVL Athlone. Lifecycle image created by RVL Division. IMPORTANT NOTICE - DISCLAIMER This leaflet is issued and shall be read only on the basis that it will not be relied upon by any person as a basis for any act or omission or otherwise without obtaining professional veterinary and health and safety verification and advice and that no liability or responsibility to any person is accepted or shall be incurred, and no recourse or claim by any person will be made, by or against AHI,any stakeholder, collaborator, officer, agent, subcontractor or employee of AHI, any member of the Technical Working Group, any contributor to, author, publisher, distributor, reviewer, compiler or promoter of or any other person in respect of
Regional Veterinary Laboratory, Kilkenny Donal Toolan - recently retired from DAFM Regional Veterinary Laboratory, Kilkenny, Theo de Waal - UCD School of Veterinary Medicine TECHNICAL WORKING GROUP RAPPORTEUR Rebecca Carroll - Animal Health Ireland PEER REVIEW BY Dr. Eric Morgan - University of Bristol. Prof. Bob Hanna - Agri-Food and Biosciences Institute, Belfast. or in connection with the leaflet or the contents thereof or any matter omitted therefrom. No representation or guarantee is given, whether by AHI or any other such person, that the contents of this information leaflet are comprehensive, up to date, or free from error or omissions, nor that the advice provided is appropriate in every particular circumstance. The contents of this information leaflet are not intended to be a substitute for appropriate direct advice from your veterinary practitioner. Appropriate veterinary and health and safety advice should be taken before taking or refraining from taking action in relation to the animal disease dealt with in this information leaflet. The contents of this leaflet may be updated, corrected, varied or superseded from time to time by later publications or material on the AHI website and reference should be made to that website accordingly. Any references in this booklet or links in the AHI website to external websites or other resources are provided for convenience only and the contents thereof are not to be considered as endorsed thereby.
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