Join Date: Feb 2012
Location: Wide Open North Dakota, USA
yes my friend that barrel races for a living (so not fair :P) took her horse to the vet because he seemed "off". He is on a regular de-worming schedule and even though he was, when the vet stuck a tube down there, his entire stomach was so full of bots that he couldn't get the tube all the way into his stomach. The vet then told her that whenever you worm a horse it should be done while the horse has an empty stomach. The horse can have water, but food is a no-no before worming.
This has happened to me as well, only I had to figure it out on my own. I thought my de-wormer wasn't working, but then I got to thinking. I work in a hospital so a generic knowledge of this is available to me, but I thought well sometimes things like this need to be done on an empty stomach so the antibiotic goes directly to the parasite, therefore killing it without the dilution.