I just want to thank everyone again for all the valuable information posted here. I have to admit, I was nervous about posting originally, as deworming is one of those topics that barn and horse owners are just “supposed” to know all about. I was worried about seeming pretty stupid, especially given that I am the daughter of a vet (who favoured the scorched earth policy of parasite control by deworming with whatever was on hand and perceived to be the strongest), and have been around horses quite literally my entire life. I would rather look dumb and have good information to manage the horses with though, and am very, very glad I posted.
2 Likes
This looks like just a different layout of the same FL protocol. I have the same issues with it.
-
NO reason to treat a low shedder in Jan, after deworming in Oct, no matter what you used but especially if you used moxidectin.
-
They say to treat the moderate shedders just like the low shedders
-
The high shedder is to be dewormed with moxi in Oct (that’s fine) AND Jan (no) AND possibly in April (no)
-
Why do mod and high shedders never get ivermectin? A great way to speed up resistance is using the same drug (moxi in this case) all the time.
-
They suggest a “power pack” or pyrantel pamoate for a high shedder in April with zero mention of resistance issues. Not to mention there’s zero need for a Power Pack, even if it were to be effective, if you used moxidectin in Oct AND Jan (not cool anyway). Moxi is likely to be way more effective than a PP, and since moxi is very effective against encysted strongyles, there won’t be any for the PP to do anything about anyway, even if it IS effective on that farm
I know. I’m just pointing out that both of these vet schools are advising this protocol.
Yeah, and it appears they’re getting their info from the same source 
Very similar.
I did not find any published guidelines from MSU or Auburn. (Auburn had an old doc clearly labeled as ARCHIVED, so not counting that).
As I’m able, I’m going to look up basically every vet school in the Southeast to see what they have published.
Might even start writing them letters if I’m feeling spunky.
Also read this article on AAEP site that includes the below quote
It is also important to recognize that action levels based on changes in FECRT and ERP have not been determined specifically for equine parasites, but instead, they are extrapolated from other species; therefore, they may not be entirely
valid.
Be nice if we could get some specifics for equine parasites it seems. Though article was published 2008 so maybe it’s irrelevant
Hmmm. I’d have to go see more context in which that was said.
1 Like
Ok I read the section (Sec 10, p.5)
There are definitely reduction percentages defined for each drug. What IS true is that no single FEC is an entirely accurate picture, since not all adults are shedding at the same time, or shedding the same number of eggs from day to day - egg counts aren’t a direct correlation to the number of adults, only a general indication of the load they are carrying. It’s the best we have.
it’s highly unlikely a horse with a 1500 ct (which does mean a significant load) is going to have a count of 0 just 10 days after fenbendazole but still have fen largely INeffective. Likewise, 1500 won’t stay 1500 if fen is largely Effective.
When my homebred was a yearling, we skipped a couple dewormings to see where he was with his immune system. He came up with a pretty high count, somewhere 800-900 or so. We used fenbenazole first, as the drug most likely to be the least effective. His count at 10 days was barely budged. We used pyrantel pamoate, and at 10 days, he was well below 100. The odds of that being coincidental and pyrantel really not being very effective, was pretty low
FECs need to be seen in numbers, not just one-off counts, that’s really what gives the bigger picture for that horse.
1 Like
My question about the FL/LSU protocols is why not recommend only ivermectin in October? I can only assume the selection of October and January is because of climate, so why even suggest moxidectin on the quick turnaround?
1 Like
Good question! I haven’t the foggiest but I’ll take not in case I start a letter writing campaign.
I think the drug companies are setting up the guidelines. They have a bunch of Power Packs they need to sell before they expire. This is pretty close to that online survey that I filled out a year or so ago.
University of GA
No mention of Oct and January schedule here, just Fall/Spring.
1 Like
A brief skim of that seems like it’s a much more “correct” methodology, with appropriate timing and drugs of choice. I’ll take a closer look tomorrow.
Dr. Ray Kaplan, one of the AAEP guideline authors, was at UGA for ages. Anything out of there should be good, they’ve got a great group of parasite nerds.
1 Like
