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The most value I have found is in the area you touched on, the young
horses. I and other breeders have a tremendous investment in the babies,
the breeding fees or cost of maintaining our own stallion, caring for the
mare for 11 months, and then caring for that baby, only to watch the
depression of growth and attitude at about age 4 months, usually
accompanied by a snotty nose with a risk of foal pnuemonia developing, or
other problems. I just don't have that in my babies anymore, and it is
wonderful to see my youngsters just keep on growing steadily without having
to boost the grain up to try to maintain them.
I have been using the product for going on 6 years now, with no problems,
and for the debiliated horse that was described in the original post that
prompted my post and started this thread, one pail of the stuff to get the
horse going certainly would not be likely to hurt.
Annette
----------
> From: C.M.Newell <reshan@deyr.ultranet.com>
> To: ridecamp@endurance.net
> Subject: Re: Parasites in horses
> Date: Monday, April 14, 1997 6:51 AM
>
> At 09:10 AM 4/14/97 -0400, you wrote:
> >In a message dated 97-04-13 18:24:17 EDT, you write:
> >
> ><< I am not a veterinarian, but I do read a great deal. This is going
to
> > sound really bassackwards, but recent studies done on humans show that
being
> > parasite free isn't always the very best thing, if you are an immune
system.
> > In humans, at least, studies have indicated that, sometimes, if the
immune
> > system has nothing to fight it will INVENT something to fight..from
which we
> > get such seemingly irrational auto- immune diseases, the most common
one
> > found in this case being asthma. >>
> >
> >I must be reading the same stuff as Michelle, because I've read this
too.
> > There is an interesting corespondence between the rise of auto-immune
> >diseases and childhood immunizations. Also, in horses, there is some
> >evidence that a foal born on a farm which uses daily wormer, and kept on
it
> >through his growing years, and then moved to a situation where neither
he nor
> >the other horses there are on it, will be uch more severely affected by
> >parasites than a horse who has been given a chance to develop a natural
> >"immunity" or perhaps tolerance for these things.
> >
>
>
> First off, there are some apples vs. oranges arguments being made
> above. There is a correlation being spoken of between overimmunization
and
> autoimmune disorders, then an assumption is made about lack of immunity
and
> possible autoimmune consequences.
> If you are worried about overimmuniztion, do you propose to stop
> annual vaccination of your horses?
>
> Secondly, there is not 100% protection from daily pyrantel
> administration. It is more on the order of 85-90%. So there is a low
level
> of exposure to allow the development of an "immunity" (for lack of a
better
> term). Having seen on post mortem the damage done to young horses by the
> migration of GI parasites through the liver and lungs, I will continue to
> recommend daily pyrantel use in babies. (I have seen a decrease in
> respiratory infections in foals/weanlings on same.)
> There have been ranches using daily wormer for well over 10 years
> now, with no apparent buildup of resistance. Given the nature of
evolution,
> someday, somewhere, resistance will develop, I'm sure, but you can say
that
> about any wormer. There is evidence of some parasites of small ruminants
> develping ivermectin resistance. (Interestingly, these animals are
dewormed
> far less often than horses, in general.)
>
>
>
> There are good arguments for and against daily administration of
> pyrantel. Personally, having limited turnout area, as well as limited
time
> to pick paddocks, I use it. But please, let's not use pseudoscientific
> arguments to condemn it.
> --CMNewell, DVM
>
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