Horse owners are still not weighing before they worm, according to the results of the British Riding Clubs Horse Health survey, conducted in February 2014.
Under-dosing is a cause of resistance so it is important to treat horses accurately according to weight, to maintain the effectiveness of the wormers currently available. This means that, ideally, every horse should be weighed before giving a worming dose.
However, according to the survey – commissioned by Zoetis – 44% of the horse owners asked do not weigh their horse before worming.
The survey contained 21 questions on general horse health, care and management and was completed online by 559 horse owners in the UK.
Vet Wendy Talbot said: “Under-dosing can cause resistance to occur, as can too frequent dosing or the use of a wormer to which there is already significant resistance. Dosing accurately, according to weight on a ‘need to’ basis, by using regular faecal worm egg counts, is key to managing the issue of resistance in our horses.
“Simple things like knowing the weight of the horses that you wish to treat before purchasing your wormers can ensure that you have enough product to dose accurately in each case.”
- The most accurate way to weigh your horse is by using a weighbridge – several feed manufacturers offer a portable weighbridge service.
- If you don’t have access to a weighbridge then using a weigh tape (pictured) will help make sure you dose your horse accurately every time.