Decided to worm 2 of our foals today. (Pandora and the TB filly) (both are 5 months old appx 300 lbs measured by weight tape.) Gave them the appropriate wormer. Within an hour to an hour and a half, I noticed the TB filly laying down. I went over to try to get her up. She didn't want to get up and when she did, she'd just walk away from me and go down again. She did this 4 times before I called my husband over. (it's his brother's filly, so he deals with any of her needs)
She was kicking her back feet, rolling, and showing general discomfort (honestly it looked like she was trying to make "snow angels" in the dirt.) I figured it was colic by the symptoms except that she is on a hay diet only. (CRP grass hay..nothing fancy) No grain..no grass. I'd also never heard of a foal colic-ing..much less a foal on an all hay diet.
While waiting to get ahold of the vet I called two horse ladies whom I know..but couldn't get ahold of either one.
Finally got ahold of the vet. Part of me was worried that the wormer was bad or I'd given the wrong dosage. Vet assured me my dosage was ok, and that colic shouldn't be an issue. Husband gave the filly banamine. Vet agreed..then had us give penicillin as well. Vet said he thought she was having issues due to the wormer maybe killing off a bunch of worms at one time (?). Said to keep an eye on her through the night and call if she goes down again.
Anyone experience this? Know what it is? Would love some insight into this
Anyways..the other filly that I wormed was fine. Showed no signs or symptoms of distress or issues.