Mon-Fri 8 to 5:30
Sat. by appointment only
31310 Woodhaven Trail
Cannon Falls, MN 55009
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651-222-0885 Twin Cities
Parasite Control and Prevention
The number of parasites,
which impact our horses, are increasing and building a
resistance to the most common paste wormers. It is proven,
that tube de-worming remains the most comprehensive and
effective way to eliminate parasites with confidence.
Parasitic infestation may cause permanent damage to the
intestinal tract of your horse, even while it appears to be
healthy. Parasites can be minimized greatly if a strategic
de-worming program is used.
Paste wormers are somewhat effective when utilized as part
of a more comprehensive plan. Unfortunately unless properly
administered, much of the paste wormer is spit out and not
digested by the horse. Dr. Winter believes that including
regular tube de-worming
in your de-worming program is the best technique to ensure
your horse’s quality of health. Because tube de-worming
delivers the treatment directly to the gut where parasites
reside, it has optimal results. CVS
created our own tube de-worming study. We wanted to compare
the efficacy of paste wormers and tube de-worming. We took
seven horses who share a pasture together. Five of the
horses were on an every other month, rotational, paste
de-worming program. Then we placed the remaining two horses
on a rotational, tube de-worming program. After a few
months, we performed a microscopic fecal examination on the
horses. Through our examination, we discovered the horses
that had been paste wormed, had a significant amount of
parasite eggs present in their feces. Whereas the horses
that we tube de-wormed, no parasite eggs were detected in
Dr. Winter has tube de-wormed many thousands
of horses for over forty years and has never ran into any
complications associated with this method of de-worming.
Strategic de-worming and parasite control is his passion.
Therefore he believes that rotating the class of
drug/chemical in the de-wormer is an important part of the
parasite control plan.
Since parasites are
primarily transferred through manure, good management is
also the key.
The American Association of Equine Veterinarians
Pick up and dispose
the manure droppings on a regular basis (twice
regularly and break up manure piles to expose
parasite eggs and larvae to the elements
Rotate pastures by
allowing other livestock, such as sheep or cattle,
to graze them. Thereby interrupting the life cycles
of equine specific parasites
Group horses by age
to reduce exposure to certain parasites and maximize
a de-worming program
Minimize horses per
acre to prevent overgrazing and reduce the fecal
contamination per acre
Use a feeder for hay
and grain rather than feeding on the ground
Remove bot eggs
quickly and regularly from the horse’s hair coat to
agents, not just brand names, to prevent chemical
There are many different
types of equine parasites, each causing its own unique
damage to the horse. For example, the stomach worm larvae
can expand a wound and prevent it from healing, causing
“summer sores”. Small strongyles burrow into the intestinal
wall and can cause weight loss, diarrhea, and colic.
Pinworms cause the horse to become extremely itchy in the
anal area causing the horse to rub its tail hair off.
Roundworms burrow and hatch in the intestines, and the
bloodstream carries them throughout the internal organs.
These are just a few of the many parasites that are out
there infecting our horses everyday.
2010/2011 STRATEGIC DE-WORMING PROGRAM
Current research confirms that parasite resistance to
anthelmintics is a growing problem worldwide. Rotational
de-worming programs (every 6 to 8 weeks) are no longer
effective because they contribute to the parasite
resistance. The most logical way to prevent this from
happening is to minimize the frequency of paste de-worming
or daily de-wormers. By reducing the selection pressure
placed upon the parasites the resistance problem will be
reduced. Proper rotation of the different drug classes is
important because some parasites survive the treatment with
certain anthelmintics and then reproduce a new generation of
drug resistant parasites known as the “super worms”.
De-worming is no longer a simple do it yourself procedure,
but a complex multifaceted issue with serious health
consequences for your equine companions.
To fight the resistance CVS suggests:
CVS stresses the importance of having fecal egg counts done
2 - 4 times per year.
Fecal egg counts (FEC) measure the concentration of EPG
(eggs per gram) of your horses manure. Dr. Winter is then
able to interpret and diagnose the drug resistance issues in
order to determine which de-wormers should be used as well
as the frequency of treatment for each individual horse. (FEC)
should be done 10 to 14 days after de-worming to establish
the effectiveness of the product used. A second fecal should
be done at the egg reappearance period (ERP).The (ERP) is a
predictable interval where the fecal egg count remains low
after an effective de-worming agent is administered. The
time frame varies according to the product used.
Egg Reappearance Period
The second fecal helps to
determine, which horse has a high parasite load and/or if
your paddock or pasture has a parasite problem with
re-infestation. By identifying this problem, CVS can provide
you with a targeted treatment for each individual horse
and/or environment. Dr. Winter will evaluate your situation,
estimate your horse’s weight, and customize an
individualized de-worming program that best suits the needs
of your horse(s) and your facility. For optimal impact, he
will advise you to administer an effective dose of the right
anthelmintics at the appropriate time of year.
CVS encourages you to
protect the environment of your horse to prevent them from
getting infected with the parasites in the first place.
Remove feces from the
stalls daily and paddocks twice weekly. By doing so,
the infective stage of eggs and larvae is decreased
and the life cycle is interrupted.