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nitro
Member
Username: nitro
Post Number: 4
Registered: 6-2002
| | Posted on Friday, Jul 20, 2007 - 1:32 pm: |   |
I have an 11 yr old gelding who was on Strongid daily wormer and paste wormed 2x yrly and never had a problem and looked great. Upon moving to Texas (from Long Island) my new vet recommended rotating from strong to weak wormers every 8 wks in flwg manner: Ivermectin w/praziquantel, then fenbendazole, then moxidectin w/praziquantel,then pyrantel (in Oct use Panacur Power Pak 5 days in a row). In March I took him off the daily wormer and used Ivermectin (Combocare gel). In May, I used Safeguard paste (fenbendazole); July, I used Quest (moxidectin). After reviewing Dr. O's article, I feel this is not the way to go. Please advise what my next step should be in resuming a good deworming program. He is alone, on an acre of (scant) pasture. Thank you for your help.}} |
jojo
Member
Username: jojo15
Post Number: 973
Registered: 12-2003
| | Posted on Friday, Jul 20, 2007 - 5:58 pm: | |
yes. Dr. O's article is most likely the best you'll find. 2 things come to mind why (from your post) switching out wormers every 8 weeks don't really help, since it takes so much longer for the worms to begin, cycle and die, so you're really not killing them all off. I switch only yearly. and i am on a small acre with only one horse and one mini. i do zimectrin gold (now in the summer months more) every 2-3 months. So far, no problems. because we are alone. no other horses. so i don't have much of a problem. I would think you will have the same scenario. I don't do fecals unless i see unthrifty- ness in her first. |
Erika L
Member
Username: erika
Post Number: 924
Registered: 10-2002
| | Posted on Friday, Jul 20, 2007 - 6:07 pm: | |
Hi Nitro, I think the reason for the yearly rotation is to avoid rapid resistance. If there are resistant parasites after one year, they are likely to be killed by the following year's product. And so on the year after that.
If you rotate frequently, you are helping the worms develop resistance to your products much faster.
Depending on how you keep your horse (small, closed herd vs. large boarding stable with turnover), you might try fecal testing to see if you need to worm at all.
But Jojo's right, we here at HA have great confidence in Dr. O's articles. They are as up to the minute as you can get without hanging around a research lab yourself! |
nitro
Member
Username: nitro
Post Number: 5
Registered: 6-2002
| | Posted on Saturday, Jul 21, 2007 - 11:59 am: | |
Thanks for responding so quickly. After all is said and done, what product would you use next and for the remainder of this year? Nitro is the only horse on this pasture. My thinking was going back to the Strongid C2X for remainder of this year and then doing the Ivermectin, etc, rotation schedule Dr. O recommend. Perhaps Dr. O could respond? Thank you - Sharon |
Robert N. Oglesby DVM
Moderator
Username: dro
Post Number: 18887
Registered: 1-1997
| | Posted on Sunday, Jul 22, 2007 - 10:13 am: | |
Considering the history nitro I believe I would finish out the horse on the ivermectin year, then start the schedule with a complete year of ivermectin based products.
DrO |
nitro
Member
Username: nitro
Post Number: 6
Registered: 6-2002
| | Posted on Sunday, Jul 22, 2007 - 3:36 pm: | |
Thank you, Dr. O. I will follow your good advice. |
