Welcome to Farm Animal Health!

I confirm I am a farmer, Registered Animal Medicines Advisor (RAMA, formerly SQP) or veterinary professional, in the United Kingdom! 

The Parasight

Welcome to this month's edition of The Parasight. We’re taking parasite-threat updates to the next level with our collaboration with post-mortem vet Ben Strugnell BVM&S Cert PM MRCVS from Farm Post Mortems, who will share with us timely, on-the-ground footage.

Understanding what’s actually happening in flocks around the UK will give you more insights on what you should be looking out for with your own animals.

Cattle health: worm control watch outs - June 2025

Description: this month, Ben discusses two cases highlighting the importance of timely diagnostics and worm control in cattle.

In the first case, a group of spring-born calves were found to have a low worm burden following a composite worm egg count test. However, by mid-March, three calves began to lose condition. All were treated with a wormer, but one died shortly after. Post-mortem findings revealed type 2 ostertagiasis. This is followed by a discussion on the watch outs of worm egg count tests and other diagnostic options available.

Ben also covers a case involving bought-in heifers, which were wormed one month after housing. One died ten days after calving. A post-mortem revealed adult lungworms, raising concerns about potential anthelmintic resistance.

Missed a previous episode of The Parasight?

Catch up on Ben's insights of timely parasite threats with these past episodes of The Parasight:

Wake Up To Worm Resistance

Wake Up To Worm Resistance

Protect the future of UK sheep farming with industry-led advice

Cattle at risk of worms

Managing worms in cattle

Worm burdens can cause productivity losses and affect growth rates in youngstock.

Sign up to receive the Parasight updates

Sign up for The Parasight

Sign up to receive updates to The Parasight direct to your inbox.

Information regarding the side effects, precautions, warnings and contra-indications can be found in product packaging and leaflets; further information can also be found in the Summary of Product Characteristics.

Use medicines responsibly. Advice should be sought from the prescriber prior to use.

Elanco™ and the diagonal bar™ logo are trademarks of Elanco or its affiliates.

About Elanco

Learn why we’re a leading provider of innovative solutions that protect and enhance animal health.

Connect with Elanco

PM-UK-23-0151

© 2025 Elanco or its affiliates.