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Conference noted::equitation

Title:Equine Notes Conference
Notice:Topics List=4, Horses 4Sale/Wanted=150, Equip 4Sale/Wanted=151
Moderator:MTADMS::COBURNIO
Created:Tue Feb 11 1986
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2080
Total number of notes:22383

1038.0. "Strange Virus" by AUNTB::TALBERT () Mon Aug 28 1989 14:02

    I would like to get some feedback on a virus that we are seeing
    at my barn in Columbia, South Carolina.  To date it has affected
    10 of 18 horses and shows up differently.  Initially, the vets thought
    it was strangles, but it is not clinical by any means.  Most of
    these horses are in excellant condition and begin the illness with
    nasal drainage, high fevers of 105 and higher, no appetite.  I have
    seen it move into legs causing severe swelling.  Penicillin seems
    to knock it out over a few weeks, but in some situations it appears
    to just mask the problem.  Is this being seen anywhere else?  These
    are hunter/jumper horses and could have picked this up at a show.
    We have voluntarily quarantined this barn to prevent any further
    infection.  Thanks for your comments.
    
T.RTitleUserPersonal
Name
DateLines
1038.1Possibly PotomicBSS::LEECHPat Leech CX01/02 DTN 522-6044Mon Aug 28 1989 15:227
    
    
    Has the vet considered Potomic Horse Fever? Have any/all of the
    horses been vacinnated for Potomic?
    
    Pat 
1038.2virusAKOV13::LESAGEMon Aug 28 1989 15:327
    Yes this has happened to a friends horse in Littleton, Ma.. The horse
    was sent to Rochester N.H., vet clinic.  The horse was treated with
    penicillin and seems ok now, but has lost weight.  Swelling was in in
    all four legs up the the hock and knees, temp. was high.  I do not know
    if the vets know what was the cause of the problem. This horse had an
    intestinal bacteria about six months ago.  But I do not know if this
    had anything to do with this other problem.
1038.3It could be your shavings...TYCOBB::RUSSAUFri Sep 01 1989 17:1223
    
    
    I have horses in Millis, MA and one of ours came down with similar
    symptoms.  She had a temperature and heat in all four legs along
    with severe swelling (enough to make walking difficult).  She had
    had her Potomac Horse Fever vaccine already, but we had her blood
    tested anyway.  We had only bought her about a month before from
    a hunting barn in NY.  The tests came back negative and we treated
    her with antibiotics.  Also, we had to wash her legs twice a day
    and put derma cleanse on them as they had broken out into pussy
    sores.  The vet said that she had had a severe allergic reaction
    and it had manifested itself in the swelling and skin ruptures on
    her legs.  We changed her shavings immediately after her reaction
    as we had just received a new load of CANADIAN shavings.  This helped
    a lot.  After hearing similar stories from several other barns, I'm
    sure the allergy was shavings related.  Many barns in the New England
    area will not buy CANADIAN shavings now because of the caustic effect
    on the horses' legs.  Our shavings come from Connecticut now.
    
    If anyone else has had this problem, consider changing your shavings.
    
    
            
1038.4What kind of trees do they use?SPACEY::CSILVAI finally got a PONY of my OWNYTue Sep 05 1989 15:432
    Do you know *what* it is that is in the Canadian shavings that would
    cause this problem?  
1038.5Could it be Oak?WILKIE::PRESTIDGEFri Sep 15 1989 10:3815
    Yes, please, someone out there with a chemistry background, please
    tell us what could be in the shavings that causes this....
    
    I have read and heard from others that oak shavings are very bad
    to use because the tannic(sp?) acid in the wood causes founder....
    
    Could the symptoms these people experienced be early causes of founder
    (i.e., swelling in the legs --> little or no blood/oxygen flow to hoof--->
    dropping of coffin bone --> founder)  ??  
    
    Does anyone out there know if other types of wood should be avoided?
    Right now, I'm using a pine/hemlock combination (mostly pine) with
    no ill effects....
    
    -Sue
1038.6WALNUT TOOLAUREL::REMILLARDFri Sep 15 1989 11:465
    
    	Walnut is also very bad... I forget if it causes founder or
    	if the horses like the taste and colic...
    
    
1038.7walnut and founderBSS::LEECHPat Leech CX01/02 DTN 522-6044Fri Sep 15 1989 15:306
    
    
    Walnut causes founder. It has something to do with a tannin in the
    wood.  Cherry is also very bad as it can/does cause founder as well.
    
    Pat
1038.8Usually CedarCGOO01::LMILLERNow try it once more ......Sat Sep 16 1989 16:527
    It is usually cedar shavings that causes that reaction (swelling)
    not any other, unless the horse insisting on eating the shavings
    (I realise that some can/does get picked up in the day to day munch)
    most other woods are harmless.  We bed on shavings (lotsa trees
    near by), and it is a common occurance with raw cedar shavings.
    Also we use bark mulch around our shrubs, and if it is cedar it
    can and does kill plants.
1038.9Oak,Cherry,Cedar??PTOMV6::PETHMy kids are horsesMon Sep 18 1989 16:0610
    This subject of wood types is interesting, I have been using
    mixed wood shavings with oak, cherry, and cedar with no ill
    effects for 7 years. I only avoid black walnut as it has been
    proven to kill horses. A write-up in Eqqus a while back referenced
    a study which found 5% in the bedding will make them sick and 20%
    is enough to kill. Maybe the other woods only affect horses with
    allergys to them?
    All the shavings I use are kiln dried not green.
    Sandy
    
1038.10More experience with oakDECWET::DADDAMIOHopelessly OptimisticMon Sep 18 1989 17:276
  At one time we had a problem getting pine sawdust and got a load of oak
  since it was available.  We didn't have any problems with the oak sawdust
  although it was a lot finer than the pine and much dustier when it dried
  out.

						Jan
1038.11Mixed with no problems eitherMED::D_SMITHTue Sep 19 1989 08:490