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What’s the story with genetics for worm management? Aren’t worm-resistant sheep poor performers? What’s the difference between resistance and resilience? Who’s CarLA (hint: It’s not your sister’s mate from Temuka). Resistant sheep have high immunity to worms and pass less worm eggs in their faeces. Resilient sheep continue to grow and perform despite worm challenge. Both traits are being measured and selected by NZ sheep breeders – you can buy rams that will improve these traits in your flock. …

A list of various papers on alternative options for worm control can be found at the American Consortium for Small Ruminant Parasite Control. A good local review is provided on Deer Industry New Zealand’s Deer Hub website (pages 63–74).  … A range of different ‘natural’ products, herbs and minerals are sometimes advocated as treatments or preventives for worm infections in livestock. This page is by no means a complete list. But here we review some commonly mentioned ones, and available …

Drenchwise: do it once, do it right …

The more you know about how worms live and breed, the easier it is to mitigate the harm they cause. Here we look at the stages of the worm life cycle – there are ways our management can interrupt this cycle to reduce worm challenge to susceptible stock.  … Animals eat worm larvae with pasture. Larvae like to live close to the base of the pasture, in moisture and away from sunlight. After a larva is eaten, its takes about 21 days to become an adult worm that can lay eggs and continue the cycle. …

Beef breeding with most calves sold at weaning … Beef breeding with 1Y cattle finishing on same feed platform … Finishing system purchasing cow-reared weaners … Finishing system purchasing 1Y+ animals … Finishing system purchasing 100kg dairy beef weaners … Learn about how different farm systems and policies set up different levels of risk – both for worm challenge, and for drench resistance. We also highlight some management ideas and risk mitigations. Good nutrition is #1  No matter what …

Meet your enemies! Learn about the important worm species of cattle – effects on the animal, seasonal pattern, diagnosis, treatment and prevention strategies.  … For information on lungworm and liver fluke, please see:  Tapeworm liver fluke and lungworm . … Common worms in …