When equine drench products were first discovered and manufactured for the general market, controlling worms in horses became very straight-forward and disease, such as life-threatening worm colics, became much less frequent. However, the worms fought back with species such as small strongyles/redworm using their unique life cycle to outsmart the drugs, and others becoming resistant to the effects of these potent chemicals by genetic selection thought to be sped up by frequent drench exposure.
We no longer aim to rid the paddocks of worms
as this is a near impossible task that promotes resistance, instead we wish to target drench to control parasite numbers
at a level we are unlikely to see related disease from.
Effective control of worm burdens gives the following benefits:
- Control worm disease to prevent possibly fatal associated diseases
- Reduce pasture contamination by intestinal worm egg and larvae
- Protection of limited drench ingredients against resistance to preserve treatment options for sick horses
- Less frequent purchasing of drenches
- Less battling with horses to administer a drench product
- Less environmental contamination by drench chemicals
Drenching still remains an important part of worm control and for some parasites a scheduled specific drench is recommended regardless of control due to difficulty in accurately diagnosing and serious associated disease if not routinely treated for.
To read more click here
The faecal egg count submission form can be accessed here
Thanks to Maureen Forsyth at Merial for helping put all of this together!