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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

98.0. "When is she really due?" by NRADM::BROUILLET (You can listen as well as you hear) Tue May 16 1989 09:39

    Our quarter horse mare was supposedly due to foal on May 5th (according
    to the previous owners; she was pregnant when we bought her), and
    nothing has happened yet.  Yesterday, I checked back through some old
    notes here on foaling, and found a note that said to count 11 months
    and 11 days from the LAST date of breeding to get the due date. 

    I checked the breeding papers, and she was bred from June 2-6 last
    year.  That would make her real due date May 17th by the above
    calculation.  Does that sound right?
    
    /Don
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98.1save on a vet bill:^}JETSAM::MATTHEWSwhen i was high, and thinking cold...Tue May 16 1989 10:037
sounds about right...
    its been so long, but i think that the gestation (sp?) period for
    a horse.. is eleven months and some odd days...
    
    i would wait til the end of the month..
    or call a vet over the phone....
    
98.2DELNI::KEIRANTue May 16 1989 10:4211
    My mares last breeding was June 1 which put her due date at May
    1st of this year.  She ended up foaling on the 7th of May.  My
    vet didn't expect her to foal until the 10th or 11th of May.  Is
    she showing any signs like leaking milk or her rump muscles getting
    soft?  One of the main things I noticed with my mare and I have
    never read it in books was that she got the runs about 36 hours
    before delivering, and she had it bad!  After the foal was born
    she didn't pass any manure for 24 hours.  I guess that is how they
    get cleaned out before they foal.  Watch for any milk dripping,
    though all horses are different that is usually the telltale sign.
    Good luck and I hope you are able to witness the birth!
98.311 months and 10 days from last breedingDNEAST::BUTTERMAN_HOTue May 16 1989 11:2413
    
    11 months 10 days from the last day bred is the calculation we have
    used...  Mares are like people, they're all different, and they'll
    have their foals when the time is right.  I know of mares who have
    successfully foaled 3 weeks early, and mares who have gone 3 weeks
    over (ugh)... but the laws of averages will reflect 11 months 10
    days.  
    
    And different from the last note... one of my mares never misses
    a meal, or interrupts her normal schedule to foal!  
    
    Sounds like you're due any day now... 
    
98.4PREGNANT MARES...ALL INDIVIDUALSASABET::NICKERSONTue May 16 1989 11:265
    I agree with Holly...they are all individuals.  The only thing they
    all seem to have in common is the softening over the rump.
    
    Good luck....let us know when the event happens.
    
98.5 a BIG eventKDCA01::CDCUP_WIGGINTue May 16 1989 17:379
    
    I have limited experience in mares foaling but have heard of milk
    forming at the end of the teats it will normally be between 0-8
    hrs. 
    
    good luck hope you see the event 
    
    
    
98.6It's a filly!NRADM::BROUILLETYou can listen as well as you hearSun May 21 1989 19:0314
    Well, it finally happened, Saturday, 20-May-1989, at 6:30 PM.  Not
    only did we witness it - we caught it on videotape, too.  Talk about
    perfect timing (or should I say, luck) - I had just put fresh shavings
    in the stall, and went out to get Jo in the pasture.  She walked
    into the barn, and was down within seconds.  "Poco's Dream Bar"
    was born about 30 minutes later.  No problems, at least for the
    horses.  We were pacing the ground for a while, though.
    
    It's a good thing we were home, since there were no signs she was
    about to foal.  No waxing up, no milk dripping, no unusual behavior.
    My wife did notice a softening of the muscles that Kathy mentioned
    a few replies back.

    Mother and baby are doing just fine.
98.7Several factors can affect foaling dates.GENRAL::LEECHNEVER assume anything.Sun Apr 21 1991 15:3537
    
    
    Potential foaling dates can be calculated for most mares.  However,
    these foaling dates can be influenced by a number of factors that must
    be taken into consideration. 
    
    Although there is some variation between horse breeds in regard to the
    length of gestation, the majority of gestation length variation is
    attributed to the age of the mare, size and sex of the foal, month of
    conception, and the climate in which the foal is born.
    
    Since the generally accepted gestation period for a mare is 340 to 342
    days (11 months), potential foaling dates can be predicted by
    determining the last day the mare was bred.  Typically the mare will
    foal 11 months and five days from that date.  However, foaling managers
    are encouraged to allow plus or minus 7-10 days on their foaling date
    calculations for routine variations.  Subsequently, most breeding farms
    calculate a normal gestation length as 340 days plus or minus 7 days.
    
    Dr. Clinton Depew of Louisiana State University recommended the
    following adjustments in foalong date based upon the age of the mare
    and the month of the anticipated foaling:
    
    for three-year-old mares, adjust foaling date 2-4 days early; for
    five-year-old mares, the foal should arrive on time; for 10-year-old
    mares, five days should be added to the expected foaling date; for
    15-year-old mares, nine days should be added to the expected foaling
    date; and for 18-year-old mares, 12 days should be added to the
    expected foaling date.  For month of foaling, if the foal is expected
    in January or Febuary, foaling date adjustments should be five days
    late; for March foals, adjust the foaling date by three days late; for
    April foals, the foal should arrive on time; and for May or June foals, 
    the foaling date should be adjusted three to five days early.
    
    From THE QUARTER HORSE JOURNAL, Feb. 1991.
    
      
98.8older mares don't always foal lateESCROW::ROBERTSMon Apr 22 1991 09:094
    re .-1
    
    Then there's my oldest broodmare who foaled early three years in a row,
    at ages 17, 18 and 19.
98.9ASD::MCCROSSANMon Apr 22 1991 10:022
	And an older mare I had long ago who went almost 13 (yes, 13) months...
98.10But how come.SWAM2::MASSEY_VIIt's all in the cueFri May 14 1993 12:4819
    Hello!
    
    Again I have a question.  I have been in breeding for a few years but
    for some reason the last few years of not owning a broodmare has
    clouded my mind some.
    
    The problem is this. ( I don't have the actuall dates, sorry.)
    We had 3 mares at the breeders for 2 weeks.  The arrived on a Sunday. 
    All 3 showed in on Monday and all 3 were breed.  Then the following
    Sunday they were shown to the stallion again.  2 showed in still and
    one did not. (The TB was out and the other 2 QH were still in)  The 2
    QH mares were breed again. (this is an AI breeding by the way).  Now
    the problem is this........The vet checked them last Saturday.  He said
    the TB was in foal about 30 days and one of the QH was in Foal about 20
    days.  How could the mares be near 10 days apart if they were only bred
    7 days apart?  I know the vet didn't say he knew for sure how far along
    they were but he estimated.
    
    Virginia
98.11how long are mares receptive?CARTUN::MISTOVICHdepraved soulFri May 14 1993 13:0610
    Are mares receptive to breeding only on ovulation day, or for a few 
    days prior to and through ovulation?
    
    Based on human reproduction, while conception takes place 
    within 24 hours of ovulation, the actually breeding could happen a 
    few days before ovulation.  Human sperm cells live for several days a
    least (possibly up to a week), so I imagine that horse sperm cells also
    live longer than 1 day.
    
    mary
98.12Oh well.SWAM2::MASSEY_VIIt's all in the cueMon May 17 1993 12:588
    As far as I know most mares are recptive for up to 10 days.  Every one
    is different. 
    
    Since we can't agree on the fact if the one mare is pregnant or not, we
    are going to have the vet out again in 30 days to check them all again. 
    Some men can be so stuborn!
    
    Virginia