1 / 13

FLUKICIDES IN IRISH DAIRY HERDS

FLUKICIDES IN IRISH DAIRY HERDS. Background. A LONGITUDINAL STUDY OF BULK MILK SEROPOSITIVITY TO FASCIOLA HEPATICA IN A SUBSET OF IRISH DAIRY HERDS.

diedrick
Download Presentation

FLUKICIDES IN IRISH DAIRY HERDS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. FLUKICIDES IN IRISH DAIRY HERDS

  2. Background A LONGITUDINAL STUDY OF BULK MILK SEROPOSITIVITY TO FASCIOLA HEPATICA IN A SUBSET OF IRISH DAIRY HERDS Determination of the prevalence of Ostertagia ostertagi, Fasciola hepatica and Dictyocaulus viviparus in Irish dairy herds using bulk milk analysis and examination of the impact of these parasites on the productivity of those herds.

  3. MATERIALS AND METHODS • 22 commercial farms (red dots) • 7 Teagasc farms (blue dots) • All farms are classified as ‘wet’ or ‘dry’ soil types

  4. MATERIALS AND METHODS

  5. RESULTS (contd.) High Monthly average S/P ratios across all study herds

  6. RESULTS Dosing required earlier than dry period Monthly S/P ratios across ‘Dry’ study farms Monthly S/P ratios across ‘Wet’ study farms

  7. TRIAL CONCLUSIONS • Liver fluke an issue on a high % of Irish dairy farms • Over 80% of farms were positive for fluke by Nov ‘09 • Usefullness of bulk tank milk testing as a screening technique for F. hepatica • No difference in seropositivity between ‘wet’ and ‘dry’ farms. • Zero-milk withdrawal flukicide would prove benificial

  8. BAN ON FLUKICIDES Only 2 active ingredients remain on the market Albendazole (Liver Fluke only) Oxyclozanide (Liver and Rumen Fluke) Will require minimum of 2 doses Third Dose probably required Current efficacy of these products unknown

  9. Issues on farm may lead to illegal use of banned products Need to promote the impact that illegal use (accidental or otherwise) could have on international markets Some farmers currently willing to take the risk BAN ON FLUKICIDES WORRYING DEVELOPMENTS • Unapproved Albendazole products being promoted e.g. Albencare • Misinformation

  10. LATEST INFORMATION • IMB has set a provisional Maximum Residue Limit (MRL) for Closantel • Efforts also being made to set provisional MRLs for Triclabendazole and Nitroxynil • EU permission required • Support for these proposals essential

  11. ON-GOING RESEARCH 2 PhD projects Epidemiological studies Links between fluke and additional diseases Milk Products Three active ingredients under study Triclbendazole Rafoxanide Closantel

More Related