Just got the fecal results for my two horses (who only get wormed if they need it) – Joe Joe had a count of 6 and Selena had a count of 12 (these are egg counts ). My vet says anything under 150 is considered good control. They will not be getting wormed this spring. I do have fecal counts done every 2 to 3 months, to be on the safe side.
It is never the horse's fault