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1. What is a concern with using a long-acting moxidectin product as a pre-lambing drench (i.e. within a few weeks prior to lambing)?
2. For mulesing or castration or tail docking, what are the differences between “analgesic” and “anaesthetic” pain relief treatments?
3. What are the two major sources of lice introduction?
4. When introducing new goats, how can other people’s drench-resistant worms be kept out of your property?
Moxidectin-based long acting products have potential for development of drench resistance because moxidectin transfers through the milk to lambs, leaving them with a sub-optimal dose that can result in selection of drench-resistant worms.
Introduction of lice to a previously lice-free flock is most commonly from straying sheep, then from recently purchased sheep. Non-sheep transmission (e.g. via shearers clothing) is uncommon.
Assume that purchased goats (and sheep) are carrying worms with some degree of drench resistance to one or more drench groups.
Use a quarantine drenching program, hold goats in quarantine and manage the paddocks they are brought onto both after purchase and after drenching.