Deworming Brochure - Elkhorn Veterinary Clinic

EQUINE
Additional Management
Strategies for Parasite
Control:
1.
Isolate new horses until parasite load
is known and under control.
2.
Keep foals and weanlings away from
yearlings to reduce exposure to
ascarids and other parasites.
3.
Regularly pick manure off of the
pasture.
4.
Keep the number of horses per acre
to a minimum to prevent overgrazing
and pasture contamination with
parasite eggs and larvae.
5.
Do not spread manure on fields that
are to be grazed. Instead, compost it
in a location away from the pasture.
6.
Do not harrow the pastures as doing
so drags infective larvae into grazing
areas.
7.
Use a feeder for hay and grain rather
than feeding on the ground.
8.
Remove bot eggs regularly from the
horse’s hair coat.
9.
Utilize rotational grazing with other
species to reduce parasite burden on
the pastures.
DEWORMING
RECOMMENDATIONS
The Elkhorn Veterinary Clinic offers excellent
quality veterinary care and service to its clients.
Our equine doctors have over 85 years of combined experience practicing veterinary medicine.
That experience allows our clients to draw on a
wealth of knowledge when problems arise.
Please feel free to contact us with any questions
you may have regarding these deworming
recommendations.
Our veterinarians and staff look forward to being
part of your horse’s health care team.
ELKHORN VETERINARY CLINIC LTD
205 E. O’Connor Drive
Elkhorn, WI 53121
www.elkhornvet.com
262-723-2644
Elkhorn Veterinary Clinic Ltd
Quest Plus**
or Equimax

MEDIUM SHEDDER

200 - 500 EPG
Quest Plus**
or Equimax

Quest Plus**
or Equimax

HIGH SHEDDER
>500 EPG

AUGUST
DECEMBER

Quest Plus**
or Equimax
Anthelcide or
Strongid

Quest Plus**
or Equimax
Anthelcide or
Strongid***
Anthelcide or
Strongid

Quest Plus**
or Equimax
Anthelcide or
Strongid***
Ivermectin
*This is a mid-summer FEC to ensure that egg-shedding is kept to a minimum during the high-transmission season.
**Quest Plus should not be administered to horses under twelve months of age or to older, thin, or compromised horses
without consulting a veterinarian.
***December dewormer should be the same as July’s until resistance appears.
Foals should be dewormed according to the schedule below:
Age
(in months)
2 months
4 months
Dewormer
Anthelcide
or Strongid
Anthelcide
or Strongid
6 months
8 months
10 months
Ivermectin
Strongid at
DOUBLE
DOSE
Anthelcide
or Strongid
12
months
FECR
Fecal Egg Count Reduction (FECR)
tests are utilized to assure the treatment was effective and to identify
horses that will require more aggressive deworming strategies. Timing is
critical, for a FECR test MUST be
done two weeks after the initial deworming. Ideally, a FEC and FECR
(ten days to two weeks later) will be
done each time a new dewormer is
used on your farm to determine if
resistance has developed to each
particular drug. Failure of the drug to
significantly lower the FECR may
indicate that (a) the horse did not
receive an adequate dose of dewormer or (b) parasite resistance. At
that time, it is important to consult
with your veterinarian.

LIGHT SHEDDER
<200 EPG
JULY
OCTOBER
After
Hard Freeze
FEC
2.
Fecal Egg Counts (FEC) should be
performed on all horses in the spring,
prior to the first deworming. The FEC
will identify the type and number of
parasites hosted by the horse and the
horse will be identified as a light, medium, or high shedder as determined
by the number of eggs per gram of
feces (EPG). Please wait 9 weeks
after administration of Strongid or
Panacur, 12 weeks after deworming
with Ivermectin or Equimax, or 16
weeks after deworming with Quest to
perform the initial FEC.
FECR
1.
FEC
Increasing resistance of parasites to available dewormers has led the Elkhorn Veterinary Clinic to recommend a targeted
deworming program, aimed at identifying
low, medium, and highly parasitized
horses and then deworming accordingly.
APRIL
*FEC
Adult horses should be dewormed according to the schedule below:
Parasite Control
Strategies

Panacur
Power Pak


Any foal that has persistent diarrhea should have a fecal egg count performed to evaluate parasite infestation
and possible dewormer resistance.

Consult your veterinarian during the horse’s yearling year.
Fecal tests require 3 to 4 fecal
balls that are collected fresh, kept
cold, delivered within 24 hours to
our clinic, and labeled with the
name of the horse, owner, and the
date of collection.