These are past articles which were part
of the monthly newsletters.
SHOULD YOU VACCINATE FOR RABIES?
Rabies is an infrequently encountered neurologic disease of equids. While the
incidence of rabies in horses is low, the disease is invariably fatal and has
consider-able public health significance. It is recommended that rabies vaccine
be a core vaccine for all equids.
Exposure occurs through the bite of an infected
(rabid) animal, typically a wildlife source such as raccoon,
fox, skunk, or bat. Bites to horses occur most often on
the muzzle, face, and lower limbs. The virus migrates via
nerves to the brain where it initiates rapidly progressive,
invariably fatal encephalitis.
Vaccines:
Three vaccines are licensed for rabies prophylaxis
in horses. All are inactivated tissue culture derived products.
The vaccines are given by intramuscular injection and appear
to be safe. Rabies is an excellent immunogen and these
vaccines induce a strong serologic response after a single
dose.
Challenge studies demonstrating efficacy
are required for licensing of all rabies vaccines (including
those labeled for use in equids in the USA), however published
results are not available. The challenge studies are conducted
by the vaccine manufacturers as outlined in the Code of
Federal Regulations (CFR) from the United States Department
of Agriculture.
Vaccination Schedules:
(Veterinarians should read the label for
each specific product recommendation.)
Adult horses previously vaccinated against
rabies: Annual revaccination.
Adult horses previously unvaccinated against
rabies or having unknown vaccinal history: Administer a
single primary dose. Revaccinate annually.
Pregnant mares, previously vaccinated against
rabies: Vaccinate 4 to 6 weeks before foaling. Alternatively,
veterinarians may recommend that mares be vaccinated with
rabies vaccine before breeding. Duration of immunity is
such that antibodies to rabies virus are maintained at
sufficient levels in mares vaccinated prior to breeding
as to provide passive immunity through colostrum to the
foal. Administration of rabies vaccine prior to breeding
of the mare reduces the number and type of vaccines given
in the period prior to foaling.
Pregnant mares, previously unvaccinated or
of unknown vaccinal history: Vaccinate 4 to 6 weeks before
foaling.
Foals of mares vaccinated against rabies:
Administer a primary series of 3 doses. The first dose
of vaccine should be administered no earlier than 6 months
of age. The second dose should be given 4 to 6 weeks later.
The third dose should be given at 10 to 12 months of age.
Revaccinate annually thereafter. This schedule avoids interference
with antibody production in the foal due to presence of
colostrum-derived antibodies.
Foals of unvaccinated mares or of unknown
vaccinal history: Administer a primary series of 3 doses.
The first dose of vaccine should be administered at 3 to
4 months of age. The second dose should be given 4 weeks
later. The third dose should be given at 10 to 12 months
of age. Revaccinate annually thereafter.
Horses exposed* to confirmed rabid animal:
Horse currently vaccinated against rabies
with one of the USDA-approved rabies vaccines: Immediate
revaccination by a licensed veterinarian and observation
(as directed by public health officials) for 45 days for
development of clinical signs of rabies.
Unvaccinated horse: Euthanatize immediately.
If the owner is unwilling to have this done then horse
should be closely monitored under veterinary supervision
for 6 months. Public health officials may establish requirements
and conditions for monitoring of exposed, unvaccinated
animals.
*Rabies exposure and transmission occur only
when the virus is introduced into bite wounds, into open
cuts in skin, or onto mucous membranes from saliva or other
potentially infectious material such as neural tissue.
WHAT YOUR HORSE WANTS IN A TRAILER
While a horse will learn to accept the trailer you provide
him with, he may choose differently!
Ample room for a secure stance. If this space is too small,
he’ll feel confined, and he may have trouble bracing
himself so he can keep his balance during transit. Avoid
trailers with a divider that goes all the way to the floor.Ventilation.
A trailer is one of the dustiest environments your horse
will get into. Always make sure you open vents and windows
to allow plenty of circulation.Need to lower his head.
Because of the extra dust floating around, be sure to leave
a long enough lead to allow your horse to lower his head
so he can go through the clearing process to remove the
mucus that will accumulate.Light, airy interior. They don’t
like going into small dark spaces. Use inside lighting
if possible.No sharp edges or protrusions. Enough said.Removable
partitions & bars. Welded in partitions and bars can
trap your horse in an accident. Always consider the worst-case
scenario.
THE COLOR OF SALT
White
salt blocks contain only sodium chloride. These blocks
are sufficient for horses fed commercial grain mixes, which
are generally formulated to provide all the necessary vitamins
and minerals. You can also offer white salt blocks to horses
on a grass diet and provide minerals and other nutrients
with a carefully chosen supplement. As always, check with
your veterinarian if you have any questions about your
horse’s rations.
Red salt blocks, on the other hand, are “mineralized,” meaning
that in addition to sodium chloride, they contain small
amounts of trace minerals such as iron, copper, iodine,
zinc and manganese. These are a good choice for horses
on grass or forage-only diets that may be lacking in certain
minerals. A horse has a natural appetite for salt, so he
will consume enough of the minerals on his own. If, however,
a horse develops a salt fixation, he may consume excess
minerals.
TRAILERING WITH EASE
A successful trailer journey involves more than
just getting to your destination on time. How you drive
can mean the difference between a horse who arrive calm
and ready to ride or one that is dehydrated, tense, and
exhausted. To maximize your passenger’s safety & comfort
while traveling, consider three guidelines as you drive:
Maintain a reasonable & consistent speed
through turns to help your horse keep his balance. This
means slowing before a turn and accelerating after it.
Too-quick turns can pull a horse off balance, causing him
to fall sideways.
Decelerate slowly. Start a quarter mile before
you need to stop. Braking suddenly causes a horse to pitch
forward in the trailer. In contrast, the way you accelerate
isn’t as great a concern because it’s virtually
impossible for a vehicle to speed up fast enough to pull
a horse off his feet.
Aim for a consistent speed on hills. To your
horse, going uphill feels like the trailer is accelerating;
going downhill feels like it’s slowing. Don’t
make it more difficult for him to adjust to those forces
by changing speed on a slope unless it’s necessary
for safety.
To test your trailer driving skills, put
an almost full cup of water on the dashboard or armrest
of your tow vehicle or place a nearly full bucket of water
in the empty trailer and take a drive. A trip without spills
indicates trailer towing proficiency.
MOUNTING BLOCKS
Here’s an interesting article I found
in EQUUS #361. So, for those who use a mounting block (for
whatever reason), hold your head high! Take no shame in
using them, as all this time you have been doing your horse
a huge favor!
The University of Michigan recently completed
a study on the biomechanics of mounting horses. They concluded
that if you want to spare your horse’s back and encourage
his muscles to develop symmetrically, avoid mounting from
the ground. Either have someone give you a leg-up or use
a mounting block. You want to be able to get in the saddle
without using the stirrup.
They report that when mounting from the ground,
pressure on the right side of the withers pulls the horse’s
entire body to the left, and the horse must push asymmetrically
against the ground to keep his balance. You will sometimes
see a horse stagger to the left as a rider climbs aboard,
and then there is the rider’s habitual shift to the
right to re-center the saddle, which creates another asymmetrical
force on the horse’s back.
Although this study was used with a dressage
saddle, results should be similar with any saddle. Tightening
the girth may prevent a saddle from slipping but will not
reduce the force on the right side of the withers.
EIA & COGGINS
TESTING
Equine Infectious Anemia (EIA) is also known as Swamp Fever and Equine AIDS.
It is caused by an infection from a lentivirus, the same family of virus that
causes AIDS in people. These are not the same virus however. People cannot get
AIDS from the horse virus, and horses cannot get EIA from the human virus. Just
1 cc of blood from an acutely infected horse can pass the virus onto one million
other horses.
When most people hear the word virus, they
think of upper respiratory symptoms. This virus is different.
It hides inside a type of white blood cell (macrophages)
that carries throughout the horse's body. Highest concentrates
are found in the lymph nodes, liver, spleen, kidney and
bone marrow, but it can go to any organ, including the
brain.
We all know flies are the culprit. Symptoms
usually appear from one to three weeks after being infected.
Some horses have just a short period of fever (24 hours)
and be lethargic, maybe off feed; while others will die
from in in as little as two weeks. Some horses may show
no signs at all until put through times of stress (another
infection, traveling, hard exercise, etc.) when the immune
system is low which will activate the virus.
Symptoms are only evident when the virus
is active. Fever is the first sign, and easily missed.
The next symptom is anemia, which occurs because chemical-signaling
molecules become attached to the red blood cells and trigger
the immune cells to eat the cells. This causes weakness,
depression, poor oxygen delivery, and possible organ damage.
As the disease progresses, blood clotting
occurs. The liver and other organs get damaged, and the
horse steadily looses weight while showing swelling of
the belly and legs.
Why is EIA so serious?
Because there is no cure for it.
There is no treatment to get your horse better.
Biting flies will spread the virus to other
horses.
Horses that test positive for EIA must be
destroyed or quarantined for life.
And, an infected horse may or may not show
signs of the disease.
With no treatment available, although researchers
are trying to develop a vaccine, protecting your horse
boils down to minimizing his chances of exposure.
If you board your horse, make sure the facility
requires a negative Coggins test from all the other boarders.
Insist on a negative Coggins test when purchasing
new horses.
Choose shows and rides that require participants
to have a neg. Coggins.
Insist on a neg. Coggins from a stallion
that may breed your mare.
If you take your horse where he may possibly
be around other horses that may not be tested, use an effective
fly repellant!
In 2004 there were 333 positive EIA horses
in the USA. Twelve states had four or more positives. Twelve
additional states had from 1 to 3 horses test positive.
Here are some of the recent numbers: Texas had 92 positives,
Oklahoma had 98 positives, Missouri had 15, Iowa had 5,
Michigan had 16... And a Coggins Test is the only way to
confirm or deny a diagnosis.
TOOTH TROUBLES
All horses benefit from regular dental care. Unlike a person's
teeth which one grown remain the same size, a horse's
tooth is much different. The entire tooth a horse uses
throughout his life is stored inside his jaw. As he ages,
the tooth will grind down, and the tooth will continue
to erupt (grown out of the jaw) until a nub is left in
the aged horse. The 24 molars a horse has keeps pace
with the rate of abrasion they are subject to as a result
of chewing.
Because a horse's lower jaw is smaller than
the upper jaw, the teeth do not wear flat. Hooks and points
develop and can lacerate your horse's cheek and gums and
make chewing very painful.
This erratic wear must be filed down in order
for the horse to stay in good health. Most vets recommend
adult horses to get yearly floating if needed. Horses under
5 years of age require more work as their teeth are softer
and more prone to developing points, and the milk teeth
sometimes require more work as the adult teeth come in.
A horse's teeth are fully formed at 5.
Under normal circumstances, a horse's molars
should last him a lifetime. But horses 20 years and older
often develop age-related problems such as:
Lost & broken cheek teeth. This will
result in severe problems in the near future, and eating
will become impossible.
Shear mouth. A chipped tooth or other dental
disruption early in a horse's life leads to a one-sided
chewing pattern that by old age leaves the teeth sharply
pointed.
Gingivitis, a painful, chronic inflammation
of the gums.
Infection. Food that lodges in the pockets
that form between the gums and teeth can become a source
of infection, which may eventually travel into the sinuses
or surrounding bone.
Persistent weight loss in older horses can
often be traced to dental problems. Even if a tooth needs
to be extracted, a horse can live happily sans a tooth,
but he may require a special diet.
Although older horses may be more susceptible
to tooth troubles, any horse can have problems, and signs
may not always be evident. He may be experiencing tooth
pain when he:
Drops or dribbles grain when feeding.
Develops a peculiar eating habit or head
posture. A bad tooth or wound inside the mouth may make
normal head posture painful.
Continues to make chewing motions even when
no food is available. He may be trying to dislodge an object
caught between his teeth or stuck in the gum.
Has a foul odor coming from his mouth or
nose. The horse's vegetarian diet usually keeps his breath
smelling sweet. An offensive odor indicates decay from
a rotting tooth, soft tissue infection, wound, or tumor.
Tosses his head or resists the bit. Teeth
in need of floating may have trouble carrying a bit comfortably.
Drools or smacks his lips. Eating coarse
roughage may have made his mouth sore. He may have an infection.
If he's a young horse, he may just be shedding his baby
teeth.
If you suspect any oral pain in your horse,
seek professional help and treatment. (For the horse, silly!)
BLANKETING
Here are a few things to consider regarding
blanketing your horses:
While running without a blanket
is best, horses that are young, old, cold, or clipped need
blankets.
Be sure not to use too much blanket for the weather
so the horse doesn’t overheat.
Look for waterproof
and breathable blankets, especially for turnout.
Measure
your horse for the right size to avoid rubs and gaps.
A
good strap goes a long way toward keeping the blanket in
place.
Materials
Cotton is the most secure material, it’s
breathable and easy to wash. Some fabrics can be a bit
stiff. Polycotton is a little softer than pure cotton.
Fleece
is warm and lightweight, breathable and easy to wash. Fleece
is soft and cuddly, but picks up lots of debris.
Nylon or
Polyester are the warmest but also the heaviest. They are
the most difficult to wash and keep clean. Nylon is usually
the under-layer on a blanket, as it’s
not as durable to be an outer layer. Nylon also isn’t
breathable.
Textilene/PVC is a tough mesh-like fabric that
is more resistant to tears and snags. It tends to be a
bit stiff, but you can clean it with a hose and brush.
Gore-Tex
and Sympatex are water-proof, windproof, highly breathable
and expensive.
Lycra is great for preventing rubs and keeping
the coat slick. However, Lycra needs to stretch to work,
so don’t
go overboard on size.
Cordura is a tough, durable material
that is easy to clean and is water-resistant.
Wool is found
in coolers and exercise sheets and occasionally in blanket
lining, but it’s expensive compared to
more modern synthetic options
TWENTY QUESTIONS
These are twenty questions that will come in handy when
purchasing a horse. The more you know, the better off your
relationship with a new horse will begin.
“Does the horse have a nickname?” Many horses
do know their name. We must respect that they have a past
as well as a future!
“Is there a feeding schedule or regimen?” Is
this horse an easy-keeper or a hard-keeper? Has it been
feed grain? Supplements? Hay? Grass?
“What is this horse’s past living environment?” Has
your new mount been babied from the weather? Has it been
protected from other herd mates that may have bullied him/her?
Always remember that it is a good idea to quarantine new
horses from your home herd. They should be given several
days to become accustom to their new surroundings and new
herd mates before being turned out with them.
“Describe the horses’ personality and hierarchy
in the herd.” This will play a big part in introducing
this new horse to your own herd.
“What vaccinations and worming has the horse received?” What
was administered and when? Are any boosters due?
“Is there or have there been any health issues?” Are
there past illnesses or injuries you should be aware of?
“Trailering?” How does the horse load, ride
in a trailer, and what type of trailer is the horse used
to?
“Ground manners?” A tough questions to ask… Has
the horse been clipped? Can you fiddle with the ears, mouth,
face with no trouble? Will the horse wear a blanket? Will
he/she stand quietly?
“Is he/she easy to catch?” You have to be
able to catch him/her before you turn him/her out with
the others!
“How is the horse with having the feet handled or
being shod?” This is nice to know ahead of time.
“What sort of training has the horse had?” Let’s
you know what to expect, or not to expect.
“Is this horse “cinchy”?” Some
horses are “cold-backed” and must go through
a time of warm-up before being mounted.
“What sort of riding have you done with this horse?”
“What kind of bit and bridle have you been using
on this horse?” Certain horses do better with one
kind or another… it’s best to find out what
has and has not worked for this particular horse.
“How does this horse handle new situations?” It’s
best not to be too surprised by a horse that will shy or
refuse obstacles.
“Can he/she be ridden alone?” Some horses
are terrified of being alone, and need the comfort of others.
“Has she ever been bred?”
“What do you know about the dam and sire?” Size,
temperaments, and personalities are passed down.
“Does he/she pull back when tied or have other idiosyncrasies?” These
are very important to know to keeping yourself and others
safe.
“Has this horse been around other livestock? Kids?
Traffic? Dogs? Commotion?”
WHEN TO CALL FOR HELP
Most wounds can be tended to by an informed horse owners
with a well stocked first aid kit. However, a few unmistakable
signs indicate the need for veterinarian care: A wound over
a joint, especially if it is leaking clear fluid. If the
joint capsule is breached, the lubricating synovial fluid
can escape. Such wounds can destroy a joint. Spurting blood
might be from an artery. Use a clean cloth to apply pressure
to the area until help arrives. A wound that is accompanied
by lameness is likely the result of a more serious trauma
that calls for veterinary investigation.
BLOWING
UP!
Most of us have heard that a horse will blow up
its belly to prevent the girth from getting tightened.
Sounds about right, but it is a myth. A horse cannot fill
his lungs up with air. So why does that once tight girth
suddenly loosen? The horse had most likely tensed his abdominal
muscles in anticipation of cinch tightening, which he might
find uncomfortable for any number of reasons. The tight
muscles increase the diameter of the horses torso
slightly, making the saddle feel secure until he relaxes.
Dealing with a horse who puffs up is easy. Simply tighten
the cinch or girth incrementally, taking breaks to perform
other tasks, such as the picking out of the hooves. When
its done slowly, the securing of the cinch is not
objectionable to most horses.
Once youre in the saddle, its wise to check
your cinch one last time: The weight of a rider can push
a saddle down enough to loosen the cinch substantially!
DEALING WITH ICE
The one winter condition that is a threat to horses is ice.
Hooves offer little traction, and a horse that slips and
falls on ice can suffer grave injuries. If an ice storm
threatens your area, move your horses to safety.
Fortunately, horses are very aware of the dangers of ice.
But if you find your horses stranded and in need of a quiet
rescue. If the horse is still standing, scatter a thick
layer of rock salt or granular fertilizer to make a path
to safe ground. Both substances melt the ice rather quickly,
and although the salt will kill the grass in the area the
coming year, its a small sacrifice to prevent injury.
Gravel, crushed stone, sand, or wood ashes are also handy
for making icy footing negotiable.
When leading a horse on slippery surfaces, use a long lead,
and stay out of the horses way as he pick his way
along the path you have made. When a horse goes down on
icy terrain, try dragging him to better footing. Have someone
help with this. One person can grab the tail, the other
the lead, and pull the horse to safely. Watch the hooves
when he struggles to his feet. Inspect your horse for injuries,
and remain watchful in the days to follow of strains &
sprains.
Both articles; Blowing Up, & Dealing
With Ice are from Equus issue #323 SEPT 2004
FIRST AID KITS
Every
good horseman should have a first aid kit for the horse
on hand at all times. We all know that when you least expect
it, stuff happens! A kit should be in the barn or tack room,
as well as in the horse trailer, and should be accessible.
The last thing you need when your horse is injured, is to
be frantically looking around for the first aid kit that
you know is around somewhere!!!
First aid kits can be purchased pre-assembled at a tack
or feed store, but one can be easily put together on your
own.
If you opt for making your own, you will need the following:
*Antibiotic ointment or betadine for protecting against
infection on minor wounds.
*Antiseptic cleanser such as betadine scrub.
*Used/cleaned ice cream pail for holding Items and lid to
seal out contaminants.
*Leg wraps or vet tape is very handy to keep around at all
times.
*Diaposable diapers are very absorbent and thick, and great
for applying pressure against deep wounds.
*Gauze pads are great for a variety of wounds.
*Knives are a must to have around at all times with horses.
You never know when a knife may be just the emergency tool
you need!
*Thermometers are good to have around. A veterinary or human
rectal one will do for being able to tell if your horse
is under the weather, and
the vet always like to know this if you have to call him.
*K-Y Jelly is usefull for lubricating the thermometer. (Petroleum
jelly can irritate the sensitive lining of the rectum.)
*Rubbing alcohol is good for disinfecting things.
*Scissors and tweezers are useful and handy items to include
in you kit.
Many of the items you find in a horses first aid kit
will for humans too!
Thanks to Tyler Curfman for this report and the information
he shared with members at the last meeting!