Internal parasites (worms and fluke) pose a significant threat to animal health and performance. Sheep farmers in particular rely heavily on chemical treatments for control. Unfortunately this has led to resistance developing in worm populations and some products becoming ineffective.
So far, resistance in cattle worms is relatively uncommon, however cattle producers should not be lulled into thinking that this is something they can ignore, as there are signs that it could become a problem.
Control of Worms Sustainably (COWS) is the cattle industry’s response to the resistance threat. By following the guidelines set out in the manual beef farmers will gain good control of the parasite problem, but will not encourage resistance. This will keep the current range of worming products working for as long as possible.
Cattle are most at risk from gut and lungworms in their first and second year at grazing, so treat them in spring according to the estimated worm burden of the pasture. Older cattle develop immunity to worms (not fluke) so are safe to leave untreated.
Cattle wormers will only work effectively if used according to manufacturers’ recommendations. Weigh cattle and apply the correct dose for the heaviest in the group.
Click here to download the new EBLEX Beef BRP Manual on worming cattle.
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