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Block Resistant Worms this Sale Season

03 September 2015

UK – Quarantine arrangements for newly bought stock are “essential” this month for stopping drench-resistant worms in their tracks.

Latest advice from the National Animal Disease Information Service (NADIS) recommends confinement for 24 to 48 hours with close monitoring for 30 days before mixing with the home flock.

During this period, NADIS says purchased animals should receive sequential full dose treatments of monepantel or Derquantel and Abermectin and one per cent moxidectin injections.

Sheep are then to be turned out onto pasture recently grazed by sheep.

“Liver fluke must be considered in quarantine treatments,” said NADIS. “Quarantine (or simply delaying treatment) for more than six weeks would allow closantel treatment thereby overcoming potential problems of triclabendazole resistance in purchased stock.”

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