Things to do now

Always read the label and ask advice from a vet, vet pharmacist or SQP before deciding which product to use

Things to do now

Always weigh cattle or use a weigh band to calculate the correct dose for each animal

Things to do now

Check meat and milk withdrawal periods for each product before administration

Things to do now

For advice on managing parasite infections in sheep visit

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What is COWS?

Control Of Worms Sustainably (COWS) is a voluntary initiative aiming to provide the best available, evidence-based information to the beef and dairy cattle industries in relation to the sustainable control of both internal and external parasites.

COWS funders

As a voluntary initiative, COWS is kindly funded by: AgriSearch, AHDB, AHDA, AHDB Beef & Lamb, AHDB Dairy, AMTRA, HCC, NFU, NOAH and QMS. COWS also works closely with SCOPS.

Latest Press

Risk assessment recommended for at-risk farms as tick numbers due to peak

29th June 2022

Tick (Ixodes ricinus) activity is expected to peak in some areas of Great Britain in the next few weeks. Ticks can transmit several infections such as bovine babesiosis (redwater), which can lead to severe, sometime fatal disease. Farmers in areas with a history of redwater may wish to take extra precautions to protect susceptible stock … Continued

Vaccinate calves against lungworm before turnout

18th February 2022

Giving first season grazing calves a lungworm vaccine before turnout will protect them against potentially lethal disease and reduce any economic losses due to ill-health, according to the Control of Worms Sustainably (COWS) group. “There is no way to predict easily when lungworm will hit and waiting until coughing starts later in the season is … Continued

Re-thinking wormer use

10th February 2022

Most current control strategies against gut worms, lung worm and liver fluke rely on the use of wormers applied to entire groups of animals at pre-determined times of the year. On many farms the same products have been used at the same time every year, for more than a decade. But cattle vet Rob Howe, … Continued

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COWS Members

  • AgriSearch
  • AHDA
  • AHDB
  • Animal and Plant Health Agency
  • Bishopton Veterinary Group
  • British Cattle Veterinary Association
  • Farm First Vets
  • HCC
  • Mark Jelley
  • Moredun
  • NFU
  • NOAH
  • QMS
  • SRUC
  • University of Liverpool
  • Veterinary Medicines Directorate