|
The
Liphook Equine Hospital
THE NEWBORN FOAL
If your favourite mare
is about to produce her first foal, the event you’ve
been anticipating with so much excitement may suddenly become
rather frightening. What if something goes wrong? You can
relax in the knowledge that mother nature looks after most
mares and their new born foals extremely well, although
problems can arise and disasters may happen. It helps to
know what is normal and what to expect from a new born foal.
New born foals are
particularly susceptible to the traumas of birth and if
something does go wrong their condition can deteriorate
quickly. It is important that abnormalities are detected
early on so that action can be taken quickly, where necessary.
The normal new born
foal
As with most things
there is a range of ‘normality’ but basically
you should expect the following behaviour from a new born
foal:
1. The foal should
be born with it’s muzzle clear of the placenta or
‘red bag’ so that it can breathe for the first
time as soon as it is born. It should be obvious from the
movements of it’s nostrils and chest that it is breathing.
2. The foal’s
eyes should be open and bright.
3. Immediately after
birth, the membranes of the foal’s mouth and tongue
may look quite a dark pink colour because of the normal
pressures of the process of birth but these should return
to a normal light pink colour, relatively quickly, once
a normal breathing pattern has been established.
4. Immediately after
birth, the new born foal’s respiratory rate is rather
high (60 per minute) and a new born foal’s heart rate,
which can be measured by putting a hand on it’s chest
just behind the elbow, should be in the range of 80 - 100.
5. Once the foal starts
to recover from the stress of the birth process and take
an instinctive interest in its surroundings, it should make
attempts to rest on it’s brisket. This usually happens
within a few minutes of being born. This aids respiration
and indicates that the foal basically knows which way is
up. It may make numerous attempts to stand. It is important
that the floor of the stable is well padded or well covered
with bedding as injuries to the skin of the hocks can easily
occur during this stage. Most normal foals will stand within
40 minutes to 1 hour of being born.
6. Once standing with
some confidence and stability, the foal should start to
make attempts to suck from just about anything that stands
in it’s way. This might include the mare’s elbows,
nose, legs, the stable walls and you if you’re in
the way. This behaviour just indicates that the foal is
instinctively seeking out the udder. Most foals are sucking
from the mare by 2 hours of birth and a veterinary surgeon
should be called if a foal has not had a good suck of milk
by 4-6 hours of age.
Apart from udder seeking
behaviour, foals of this early age are not terribly inquisitive
about their surroundings. Having discovered the udder, they
tend to go back for frequent small feeds and are quickly
able to stand up and lie down again for a rest or sleep,
as and when they choose. The mare’s teats should appear
permanently wet or shiny, showing that the foal has been
sucking and the foal should lie down and sleep after sucking,
showing that it has been satisfied. The foal quickly establishes
a ‘rhythm’ of frequent feeding and sleeping.
In a normal foal any disturbance will quickly make it jump
to it’s feet if it’s lying down. Over the next
12 - 24 hours the foal will become increasing interested
in it’s surroundings, will have bonded closely with
the mare so that it will call her if she is not in immediate
sight and will follow her if she moves or is moved from
one place to another. The foal should appear bright and
alert and will develop periods of play by ‘prancing’
and ‘chasing’ around the mare between periods
of feeding and sleeping. If all is well with mare and foal
there is no reason why, weather permitting, they should
not be turned out together in a small paddock even at this
very young age.
What might go wrong?
The birth process and
the first few hours of life are a very complex time as the
foal makes the transition from life in the womb to life
in the outside world. Some foals appear to be just ‘slow’
to adapt to their surroundings and suck, for reasons that
are unclear. They are sometimes called ‘stupid’
and often look as though they may have a ’headache’,
perhaps from the pressures of birth on blood vessels in
their head and brain. The process of birth itself may be
traumatic or the foal may be born with abnormalities. Abnormalities
of the limbs may render the foal unable to stand properly
with or without assistance. If the foal cannot stand it
cannot suck the mare and a struggling foal will become weak
very quickly if it does not receive colostrum which is the
mares first milk, and then milk to nourish it. Damage to
the brain, due to lack of oxygen, can occur in even the
most apparently normal births and can result in a foal which
does not develop a suck reflex or is totally unaware of
it’s surroundings. It may just walk aimlessly around
the box or in severe cases the foal may even start to convulse
and make a noise like a barking dog. If the foal has developed
an infection during the later stages of pregnancy it may
be born infected (septicaemic) and too weak or ill to be
able to function normally. In any of these incidences or
if there is any other reason that you do not feel that the
foal is progressing as quickly as you think it should, your
veterinary surgeon should be called without delay.
What is the importance
of colostrum?
The first milk produced
by a mare is thick, often yellowish in colour and honey-like
in consistency. It is rich in antibodies against infection
and is known as colostrum. Foals are naturally born without
any antibodies of their own and until they ingest colostrum
they are incapable of fighting infection. If the foal does
not suck within the first 4-6 hours of life, it may be necessary
to call your veterinary surgeon and ask him to administer
the mare’s colostrum by stomach tube. If a foal has
a good suck reflex but is unable to stand it is possible
to feed the foal with the colostrum, which has been stripped
from the mare, by bottle. Where a mare has ‘run milk’
prior to foaling, the colostrum may be lost. In these cases
it is necessary to give the foal donor colostrum from another
mare or another source of equine antibodies. You should
speak to your veterinary surgeon, before the foal’s
birth, if your mare has lost any amount of milk prior to
foaling. It is important that colostrum is given within
the first 12 hours of life because after this time the antibodies
are just broken down by the foals digestive system, like
any other food stuff, and are not absorbed into the bloodstream.
What should I do if
something doesn’t seem right?
If at any time you
are not convinced that your foal is progressing normally,
you should call your veterinary surgeon without delay. A
new born foal can deteriorate very rapidly and the sooner
help is obtained the better the chances of your foal surviving
and thriving. Do not adopt a ‘wait and see’
attitude as a little bit of experienced help might go a
long way towards ensuring you have a healthy mare and foal
at the end of the day.
|