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Not all testing for worms involves handling poo! Here we discuss how animal performance and health checks can be used in worm monitoring. This includes things you can check after an animal has died. … Liveweight monitoring and targeted selective treatment (TST)  What is it? Parasite infections in young animals can cause reduced appetite and reduced feed conversion efficiency.  Not all animals in a mob are affected to the same degree - some will be growing fine while others are not. Liveweight …

Drench resistance is evolution in action (remember Darwin?). Here we examine the risk factors for developing drench resistance on your farm. We also show you what you can do to assess your own situation. … 'Drench resistance' is present on a farm when there are a measurable number of worms surviving in the animals after treatment with anthelmintics. You can test for it with simple 'drench checks' or a more detailed faecal egg count reduction test. Management practices that improve nutrition to …

A convenience sample of cattle faecal egg count reduction tests in New Zealand 2021 2024 …

The term ‘Refugia’ can be really confusing! The outcome we want is to stop your farm from becoming dominated by drench-resistant worms. Using Refugia means leaving some worms free to breed without ‘screening’ by drench. There are various ways to achieve this.  … What is Refugia? The term Refugia means a worm population that can reproduce without being exposed to drenching.  Keeping a population (or refuge) of drench-susceptible worms on the farm can slow the build-up of parasites resistant (R) …