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1. Why/how does smart grazing work to prepare a low worm-risk paddock for weaners during winter in the winter rainfall regions?
2. Which Insect Growth Regulator (IGR) for flystrike prevention can only be used in a spray-on form?
3. In what situations when introducing sheep might the immediate shearing and treating for lice be the best approach?
4. When treating goats for worms, why are cattle pour-on products not suitable?
The intensive grazing periods:
2. Which Insect Growth Regulator (IGR) for flystrike prevention can only be used in a spray-on form?
Dicyclanil can only be used as a spray-on.
Cyromazine can be used as a spray-on, for jetting and dipping, and as a flystrike dressing (though it acts slowly).
This option is the best option for biosecurity, but is rarely cost effective. It best suits these situations:
4. When treating goats for worms, why are cattle pour-on products not suitable?
Cattle pour-on products should not be used for worm control in goats. Pour-ons should never be used as a drench, as the liquid in which the active ingredient is dissolved is very toxic to the lining of the gut.
Goats have much less subcutaneous fat than sheep and cattle and this can affect the absorption of pour-on products, which must be applied along the back and then absorbed.