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Find out more at https://equusequitation.com/fec/
how to collect and prepare samples
frequently asked questions

Most horses have some worm burden, however continual and unnecessary drenching should be avoided so as to avoid drench resistance.
When there are no botflies, you should only drench your horse if they have a high fecal egg count (more than 500 eggs per gram of faeces (epg)).
An equine fecal egg count generally only counts total number of Strongyle eggs (some other species can be identified too), this count gives an indication of worm burden and if you should drench or wait and check again in a few months.
This video shows how a fecal egg count is performed.