A Guide to Parasite Control at Turn-out
Monitoring of parasite infections on dairy farms The use of bulk milk samples as a monitoring tool for parasites is currently being examined in Ireland. Milk samples can be analysed to see if they contain antibodies to O. ostertagi (Roundworms), D. viviparus (hoose) and F. hepatica (liver fluke) and, if so, what the levels and trends are. While O. ostertagi is present on all farms, the impact of the parasite on production (and thus the value of treatment) can be estimated from the concentration of antibodies found. The other two tests are in earlier stages of development, but they may indicate whether or not the parasite is present on your farm. Interpretation of results from these tests needs to be done in the context of the overall herd health andmilk production pattern. At the present stage of testing development, it is important to note that using the results from these tests alone will not be enough to design a comprehensive parasite control plan. Ideally, this should be done in consultation with the farm vet who understands the herd health and production history.
TECHNICAL WORKING GROUP Andrew Forbes (Chairperson) - School of Veterinary Medicine, Glasgow University; Mícheál Casey - Central Veterinary Research Laboratory Backweston, DAFM; Charles Chavasse - Zoetis, Bosco Cowley - MSD Animal Health; Martin Danaher - Teagasc Food Research Centre Ashtown, Teagasc, Michael Doherty - UCD School of Veterinary Medicine; John Gilmore - Veterinary Practitioner, Roscommon; Barbara Good - Teagasc, Athenry; Fintan Graham - Veterinary Practitioner, Laois; Ian Hogan - Regional Veterinary 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. Image of Ostertagia Type II (Page 2) and Hoose worms (Page 5) are coutesy of Donal Toolan, Kilkenny RVL. The liverfluke image has been provided courtesy of Dr Orcun Hacariz and Pablo D. Rojas, School of Agriculture Food and Veterinary Medicine, UCD. IMPORTANT NOTICE - DISCLAIMER This leaflet is issued and shall be read only on the basis that it will not 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
Laboratory Limerick, DAFM; Maura Langan - Norbrook Laboratories; Grace Mulcahy - UCD School of Veterinary Medicine; Tom Murphy - Parasitology Specialist Maresa Sheehan - Regional Veterinary Laboratory, Kilkenny, Donal Toolan - retired from Regional Veterinary Laboratory Kilkenny, DAFM; Theo
de Waal - UCD School of Veterinary Medicine. TECHNICAL WORKING GROUP RAPPORTEUR Rebecca Carroll , Animal Health Ireland.
in respect of 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 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 content thereof are not to be considered as endorsed thereby.
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