06/18/2024
The American Association of Equine Practitioners (AAEP) has updated their guidelines for internal parasite control.
We've been using the basics of these since Dr. Nielsen's concerns about the resistance of many worm populations to various deworming medications were published.
The only "new" dewormer on the market is moxidectin, with no others on the way, so it's recommended that we don't use Quest or unless we've tried everything else first.
20% of the horses in a herd can be responsible for 80% of the parasite egg contamination of the pasture.
To summarize the summary......
1) Run f***l egg counts (FEC) to find out where you stand (at least in general).
2) Use only ivermectin products (or ivermectin+praziquantel) unless FECs indicate otherwise.
3) The goal is to try to get to the point where we only deworm once or twice a year.
These Internal Parasite Control Guidelines were revised by the AAEP in May 2024. You can access the entire guidelines document by clicking the Download Resource button. Parasite groups discussed in these guidelines include: Cyathostomins (Small Strongyles), Large strongyles, Anoplocephala perfoliata...