10/08/2026
šØ Still worming your horse every 6ā8 weeks? You could be doing more harm than good.
For years, weāve been told to rotate wormers every season.
Today, we know thereās a more evidence-based way.
If youāre still worming on a fixed schedule simply because āthatās how weāve always done itā, thereās a good chance youāre wasting money, exposing your horse to unnecessary medication and contributing to the development of resistant worms.
Modern parasite control has changed.
Current recommendations are to use faecal egg counts (FECs) to determine which horses actually need treating and when. Blanket rotational worming is no longer considered best practice. (Australian Veterinary Association ā Equine Anthelmintic Guidelines: https://www.ava.com.au/policy/use-of-anthelmintics-in-equine-practice/)
The surprising partā¦
Many healthy adult horses are naturally low worm shedders.
That means some horses may only require one strategically timed annual worming treatment, while others may need more frequent treatment based on their individual egg counts, age and management.
There is no āone size fits allā worming program.
Last year alone, Hillside Vet Services performed 130 faecal egg counts for our clients.
Every result receives a personalised 12-month worming plan, tailored specifically to that horseānot a generic calendar.
Why should you use a faecal egg count?
ā
Reduces unnecessary worming treatments
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Helps slow the development of resistant worms
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Can save money over the year
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Many horses only require one annual strategic treatment
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Reduces the risk of parasite-related disease, including some forms of colic
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Gives you confidence that youāre treating your horse appropriately
Just as importantly, weāll discuss pasture management and environmental parasite control, because managing contamination in your paddocks is just as importantāif not more importantāthan choosing the right wormer.
Why now?
As we head into spring, this is the ideal time to establish your horseās parasite status and develop a plan for the next 12 months.
Your annual plan also identifies the appropriate timing for strategic treatments against parasites such as bots and tapeworms, ensuring your horse receives the right treatment at the right time.
š§Ŗ Faecal Egg Count + Personalised Annual Worming Plan
$65 when performed with any other Hillside Vet Services appointment.
Smarter parasite control.
Less unnecessary worming.
Better outcomes for your horseāand for the future effectiveness of the wormers we all rely on.
š Book your next appointment and ask to add a faecal egg count.
Purpose To provide guidance on the responsible use of anthelmintics in horse populations to support effective parasite control and minimise resistance. Policy Veterinarians must recommend the judicious use of anthelmintics [ā¦]