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Beyond the Bale : June 2019
ON FARM 43 ACTIVE INGREDIENT AGE OF FLUKE KILLED Triclabendazole All stages Triclabendazole plus oxfendazole All stages Closantel From 8 weeks Albendazole From 12 weeks Closantel plus albendazole* From 6 weeks Oxyclozanide plus levamisole From 12 weeks Table 1. Liver fluke treatments and the age of fluke they target Distribution of liver fluke, showing the different climate regions *Available only in the 4-active combination: Q-Drench The most important treatment is the April/ May treatment and should be based on the flukicide, triclabendazole, which is effective against all stages of the fluke found in the sheep. If treatments are also required in August/September and/or February, one or both of these treatments should be a flukicide other than triclabendazole (if this was used in April/May). This treatment rotation will reduce the rate of development of fluke resistant to triclabendazole. See Table 1 above for drenches effective against fluke. Grazing management can also be used to help control fluke. As ‘flukey’ areas are confined to certain parts of a farm, grazing of these areas can be managed or even avoided, particularly Brisbane Sydney S-E NSW & most of Tasmania Most of Victoria Northern tablelands (NSW) & Southern Queensland Irrigation areas of NSW and Victoria North Coast (NSW) & South Coast of Queensland by the most vulnerable stock (sheep, goats and young cattle). Improving drainage of wet areas and repairing leakages can remove or lessen the habitat for fluke snails. When introducing stock from a high rainfall area, consider treating for fluke as part of your quarantine drench, or at least test first to see if the stock are infected. While your property may not sustain a fluke infection, fluke already in the stock can live for years. MORE INFORMATION www.wormboss.com.au/worms/ flukes/liver-fluke.php Source: Adapted from NSW DPI Primefact 446 ‘Liver fluke disease in sheep and cattle’. (J Boray, March 2017).