That’s what I am afraid of, JB. Thanks for the advice.
I think as long as you are double dosing within a rotation schedule (ie, DD when you would regularly use ivermectrin), increasing resistance would not be an issue.
resistance is more likely when you use the same drug every time, or use lower than normal doses. (As an example, think bacterial resistance…)
L
Yes, double dosing within a regular rotation is one thing. But “the protocol” for this is DD’ing every 2 weeks for 2-3 treatments, and that’s where I would be hesitant to do it unless there was a really good reason, not just because 
Just because this thread doesn’t have quiiiiiite enough pages yet 
I thought I’d add a tidbit I found out, which I don’t believe has been mentioned here yet:
I had my vet (new one to the practice, graduated in May, loves research, I’m gonna love her :D) did some research for me on these critters.
Most of what she found wasn’t new (good, bad? LOL) but she did find this:
One study showed that regular (like every 6 months) use of ivermectin not only kills juvies (which we already knew) but is also suppresses, to a degree, breeding of the adults.
I don’t believe MORE ivermectin did further suppression, but not using ivermectin for 18 months did not bring breeding back up to full scale. It wasn’t as diminished as while on 6-month doses, but neither was it as high as before.
Nifty huh?
So then, if one were to use ivermectin at least once every 6 months and the juvies were killed, it is safe to “assume” that ultimately there would be no adults?
Well, I’m not sure. You’ll probably not get ALL juvies before they gain adulthood (dang, now I’ll have to see if I can find how long it takes a juvie to grow up!), so for the next 15 years (gack) those adults will produce juvies, though presumably at a slower rate than if you weren’t using ivermectin.
I forgot to mention that the article (she’s going to try to email it to me since I can’t access it, fun!) talked about how it’s not really about the number of juvies that cause a problem, it’s a sensitivity to them, akin to an allergy.
So, that (presumably LOL) means that horses who are having such reactions as to warrant this DD protocol don’t necessarily have MORE juvies running around, just a bigger sensitivity to them.
Yes, please post when you find out the life cycle. I looked around and couldn’t find anything at all.
I would tend to believe if the horse was wormed every 4-6 weeks the juveniles would be killed. But who knows. This may be a fast worm.
Well, you can’t kill the adults. Ivermectin/moxidectin kills the juvies. I don’t know, either way, about resistance issues in the juvies. But I’d expect given the issues with under-dosing, a lot of horses have more adults than they should.
About 8 months ago, I inadvertently noticed that my mule , who had bumps all over her forlegs and chest all year round (Florida) , the bumps would clear up after worming (ivermectin). I wormed every 3 months at the time. Now I worm once a month and she has very little activity with bumps, no itching, bleeding, etc. Then I started to find message board threads that made me realize that it was not a coincidence. So I am a believer. Her mom was never bothered. I treat the healing bumps with Corona cream and flyspray. She’s doing good.
One other thing, re worming. I am probably the only person that worms her own horses at a barn I have them at. This past 6 months there has been a rash of colics there. I know it’s not easy figuring out what’s causing it, but is it possible that it can be related to the horses getting that daily wormer daily, and ivermectin twice a year?
bumping so I can find this thread as I continue to search for the elusive “program”.
I found this, but cannot find EqTrainer’s…
I found this finally, but I thought EqTrainer doesn’t use Quest?
I love Quest!!!
I no longer use Strongid in any dose tho, no babies here. I use Equimax in that spot to kill tapes.
When I have run fecals on horses who have been on this program for two years or more, I have never had a positive fecal. I have since then backed off on those horses (three of which still live here) to a single powerpack or a quest and equimax 2 x a year… Still good fecal so far. One of them had NTWs tho and did just about live on ivermectin last summer LOL
Sorry EqT, I must have gotten you confused with someone else who was anti quest…
So the new schedule is:
Powerpack Spring/Fall followed 2 weeks later by a 1 1/2 by weight
Anthelcide
Assuming we are going from spring, every 6-8 weeks:
Equimax (or double equimax?)
Double Ivermectin
Double Equimax
PP again, Anthelcide again
Quest
Double Ivermectin
I have big horses… I double ivermectin and equimax. Found out much later about the NTWs and that was lightbulb for me because I rarely ever have skin issues here, now I know why. But I don’t double the pony ;). She is 700 lbs. So do as you see fit under your circumstances. If your horse is big, adjust. If it’s small, adjust. If it’s scurfy and fungusy, I would double.
He’s about 1300 pounds… luckily not fungusy
Thanks for all of your info… hope you don’t get a thousand PMs from people as pesky as me…
Ha! I am crawling back under my rock now LOL
And I totally respect your opinion, so thank you for the information, and I will start digging around on the time of efficacy of each dewormer…
Does anyone know of a website that already has this information? I of course will start with the manufacturer’s websites for each product…
Of course, I must publically apologize to EqTrainer, because after I promised I would not ask her a bunch of questions, I think I asked about 30… sorry about that …
Thanks again for the info!! (cross posted this from the other thread to consolidate…)
I just moved to Aiken, SC and on day two of being here my mare had massive bumps that looked like bug bites everywhere. I did the DD of Equi-max on October 1 and 8 days later she looks fabulous!!
Valley Vet has Equi-max for 9.85/tube for a purchase of 12 plus free shipping. I paid $16 at a local feed store! Thanks so much to everyone that has posted to this thread!
[QUOTE=bkkone;5145644]
I just moved to Aiken, SC and on day two of being here my mare had massive bumps that looked like bug bites everywhere. I did the DD of Equi-max on October 1 and 8 days later she looks fabulous!!
Valley Vet has Equi-max for 9.85/tube for a purchase of 12 plus free shipping. I paid $16 at a local feed store! Thanks so much to everyone that has posted to this thread![/QUOTE]
Where did you move from? Do you believe your horse contracted neck threadworms in 2 days? Was it a problem where you came from?
