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Drench Resistance

Drench resistance is a change in the genes of a worm population that enables some worms to survive drenching. Drench resistance is a farm problem. Resistant genes can be purchased with stock or with land. Destocking will not get rid of resistant worms, as most of the worm population is on the pasture. How does […]

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Effects of Lice Infestation

When it comes to long woolled sheep, it can be difficult to control lice. Pour-ons for lice e.g., Wipeout, Magnum and Vanquish; achieve best results when applied to the fleece within 24 hours after shearing. Some products however, are best applied with some wool. For example, Zenith concentrate, for fly and lice control, is best applied via jetting or shower dipping between 2-5 weeks off-shears. This allows the dip chemical to bind and persist in the wool and wool grease, and ensures that the fleece is saturated to skin level.

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