Have had our mare for almost 2 years. She has never had a neg fecal, this is our third attempt to rid her of them this year. The second time this year (with a new vet) she had 5 days of panacur..still had them. This time she is on a dose and a half for 5 days, and Quest on day 6. Both were from reccomendation from Ohio State. This time she is being confined either in a paddock where there are no other horses or her stall. We are just going on day 3. Just wonder if any one else has or has had this problem and maybe anything that rid your horse of these dang worms. I checked with the BO and except for a couple horses he they are worm free.
Our mare does not look wormy though, I am getting ready to put the grazing muzzles on both my horses. Thanks a lot guy and gals , I am just concerned if this treatment doesn't help.
Oh the vet said the OSU stated that either the pastures are highly contaminated, she is resistant, she is suceptible or all 3. I don't think it is the pasture as my gelding is out there and the others and I know for a fact he was negative.