Elanco Farm Animal Health UK

11/09/2025

I’m buying in a couple of tups, is using a Group 4 wormer necessary as part of quarantine?

Resistant worms, and worm species you don't want such as Haemonchus, can only travel to your farm inside a sheep.

Even just one healthy looking ram could be the "Trojan Sheep" that brings in a problem, so don't take the risk.

Speak to your vet for single doses when you just have a few animals to treat.

08/09/2025

With the weather being so unpredictable, the blowfly season is stretching well into autumn. So, don’t take your foot off the gas just yet when it comes to blowfly control.

If you applied a long-acting IGR earlier in the season and it’s nearing the end of its protection period, it’s worth keeping a close eye on things and even applying a short-acting IGR for peace of mind during the tail end of the season.

05/09/2025

By this stage in the grazing season, most lambs will have received at least one worming treatment from groups 1–3. However, any worms resistant to these treatments may have survived and can continue to live inside the lambs for months, gradually building up and restricting growth potential.

Adding a late-season break dose with a Group 4 orange wormer can clear out worms – including any resistant to the older group wormers. As well as the obvious immediate health and performance benefits associated with effective worm control, this approach also helps prevent them from laying eggs that will overwinter and impact next year’s worm management.

Speak to your vet or RAMA for more information on giving a break dose this season.

03/09/2025

With some wet weather experienced during August, Ben Strugnell from says keep a watch out for a potential surge in worm burdens.

“After dry weather, worms are likely to hatch quickly, and this could mean lambs are at risk of scour and loss of condition,” he says.

Here are some things to think about:
• Lambs might be more vulnerable this year, as they haven’t been exposed to worms earlier on
• Keep a close eye out for signs like condition loss and monitor daily liveweight gains
• Weaning and housing smaller lambs early could be a good strategy to avoid worm risks and help them reach target weights faster

For more seasonal parasite updates turn to page 8 of the sheep supplement in latest issue of Farmers Guardian and sign up to receive alerts from The Parasight.

01/09/2025

There's been good interest in this meeting so far. Have you booked your place to pick up some tips from John Schofield and Matt Colston of Elanco? If not, don't worry, there's still room for more - book online at📍 https://bit.ly/GOSFORTH0309 📍

29/08/2025

28/08/2025

We’re talking all things weather and worms in this month’s episode of The Parasight. 🪱

Post-mortem vet, Ben Strugnell Farm Post Mortems Ltd. reports on recent cases of Nematodirus in lambs and gives advice on the most effective way to respond depending on post-mortem findings.

During the episode, Ben and our technical consultant, Matt Colston, also discuss the link between grass length and worm risk in lambs.

Visit the link in the comments to find out more!

27/08/2025

It’s easy to assume that fluke is only a problem when it’s wet, but in dry years, it can still cause trouble.

On some farms, the only forage available is in areas where there is naturally more moisture, and that’s where fluke is often lurking.

Monitoring fluke levels is the only way to know for sure if your flock is at risk.

Speak to your vet to determine the right tests and timing to ensure you're protecting your animals effectively.

22/08/2025

It’s that time of year again!

Are you buying in stock ready for breeding, or bringing home ewes that have been grazing away?

Be careful you don’t get caught out by a 🐎

Even the healthiest stock could be carrying some unwanted parasite passengers. We recommend incorporating a newer group wormer, such as Zolvix, into your quarantine plan to help minimise the risk to your farm from resistant worms or new worm species.

It’s a good idea to speak to your vet or adviser about an appropriate quarantine protocol if you don't already have one in place.

21/08/2025

Sign up for Farm Animal Health parasite alerts this summer and you could WIN a Zolvix™ branded gift in our weekly draw! 🎁

Blowfly Watch - Provides sheep farmers with timely updates on the level of blowfly risk in your area.

The Parasight – Gives timely updates on parasite threats to sheep and cattle through our collaboration with post-mortem vet Ben Strugnell.

Don’t miss out – sign up now via the link in the comments👉

Sign up to receive Blowfly Watch alerts for blowfly strike in sheep and The Parasight updates on disease challenges and treatments for cattle, sheep and dairy

20/08/2025

We’ve got Easycare’s and blowfly strike has never been a problem. Is applying an IGR necessary?

Having no wool greatly reduces the risk of fly strike but does not remove the risk entirely.

In a year where grazing has been limited on many farms, nutritional stresses may also have impeded wool shedding, leaving even wool shedders potentially more vulnerable, and as the wool grows back strike risk increases again.

So, unless we’re guaranteed an early frost this year, I would consider a preventative IGR treatment to cover the flock for the late summer and autumn.

Click here to hear more from Phillipa Page and NADIS: https://www.facebook.com/share/v/1GDrYoHgps/?mibextid=wwXIfr

19/08/2025

Ben Strugnell, from Farm Post Mortems Ltd, returns for the latest episode of The Parasight, visit the link in the comments to catch up.

Here’s some highlights from this month’s episode:

🌧️ Ben discusses how shifting weather patterns are influencing parasite risks on farm

🪱 Ben’s seeing a rise in Haemonchus cases in several regions and shares the key signs to spot during a post-mortem

🧪 A reminder that every farm is different, so tailored treatment plans are essential

Farm Post Mortems Ltd.