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Fluke treatment reintroduced

Data confirms liver fluke is on the increase

MSD Animal Health have announced that the flukicide drench Zanil® has been reintroduced in the UK after independent data confirms that liver fluke is on the increase in cattle and sheep.

Matt Haslam, veterinary advisor for the company, said: "The fluke problem is long-standing, but is being exacerbated by recent wet summer and autumn periods that have created ideal conditions for this parasite to proliferate and infect grazing livestock."

Importantly for dairy farmers, Zanil® is licensed for use in young, pregnant and lactating animals, and has a 72-hour milk withhold period where milk is produced for human consumption.

Mr Haslam added: "Chronic liver fluke causes serious economic losses for livestock farmers. In dairy herds, for example, there will be a negative impact on fertility and milk production where cows are affected.

"It is important that farmers have access to the best treatment options given the size of the threat and the scale of potential losses. Zanil is used widely and effectively in Ireland in the control of fluke problems, and there is no known resistance to the active ingredient oxyclozanide."

Zanil® is a POM-VPS oral drench and is available from animal health suppliers and veterinary practices. For sheep, the dosage rate is 4.5ml per 10kg bodyweight, up to a maximum of 20ml, and 3ml per 10kg bodyweight in cattle, up to a maximum of 105ml.

For further information, see the latest Defra reports on emerging threats in sheep and cattle.

Images courtesy of MSD Animal Health

Related News
VMD to ban some flukicides
Liver fluke cases increase dramatically

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Equine Disease Surveillance report released for Q4 2025

News Story 1
 The latest Equine Disease Surveillance report has been released, with details on equine disease from Q4 of 2025.

The report, produced by Equine Infectious Disease Surveillance, includes advice on rule changes for equine influenza vaccination.

Statistics and maps detail recent outbreaks of equine herpes virus, equine influenza, equine strangles and equine grass sickness. A series of laboratory reports provides data on virology, bacteriology, parasitology and toxicosis.

This issue also features a case study of orthoflavivus-associated neurological disease in a horse in the UK. 

Click here for more...
News Shorts
NSA webinar explores sheep tailing and castration

The National Sheep Association (NSA) is to host a free webinar on the castration and tail docking of lambs.

The webinar, 'Understanding the tailing and castration consultation: A guide for sheep farmers', will be hosted online on Monday, 2 March 2026 at 7.30pm.

It comes during a government consultation into the methods used for these procedures. Farmers are encouraged to engage before the consultation period closes on Monday, 9 March 2026.

The webinar offers clear and actionable guidance to support farmers to contribute meaningfully to the consultation and prepare for potential changes.

On the panel will be former SVS president Kate Hovers, farmer and vet Ann Van Eetvelt and SRUC professor in Animal Health and Veterinary Sciences Cathy Dwyer. Each panel member will utilise their own specialism and expertise to evaluate risks and outcomes to sheep farming.

Find out more about the webinar on the NSA website.