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Veterinary Practice STAFF Vol. 5, No. 5 September/October 1993
This information leaflet is provided as a method of communication between
veterinarians and clients whose dogs are about to give birth. It is designed
to explain the signs of labor, normal birth process and follow-up care of
the mother and her puppies. Your role in preparing for and assisting in the
birth is discussed along with problems which require special and/or
emergency veterinary care. If you have any questions, be sure to ask your
veterinarian to answer them for you.
Preparing for Birth
A couple of weeks before your dog gives birth (whelping), supply the
expectant mother with a box for her to have her pups in. The box must be
large enough for the mother to stretch out in and allow enough room for a
brood of new puppies. The mother dog should be able to enter and leave the
box easily. Make sure the sides of the box are several inches high in order
to keep the puppies in, box dry, and chilly drafts out. Place the whelping
box in a warm area which is free from distractions but familiar to the
mother dog. She needs a quiet and secure place to rest.
Newspapers or disposable diapers should layer the floor of the box. They
make excellent bedding material because they are easy for the mother to
shred for her nest, are absorbent, and can be replaced. Blankets, rugs, and
towels are also useful, but they must be cleaned frequently. A heating pad
under the box will serve as an additional heat source. Local areas should
have a temperature of 80-85°F so the puppies can choose a warmer or cooler
area as needed.
Signs of Labor
The normal body temperature of a dog is 101.5° F with variations of one
degree above and below normal. About 24 hours before labor begins, the
mother dog's temperature may drop by 2 degrees. By taking the expectant
mother's temperature twice a day and recording it, dog owners may be able to
predict quite accurately when the whelping process will begin. Also about 24
hours before labor, milk is produced, the external genitalia become enlarged
and soft, and a thick mucous discharge appears. The dog will refuse food and
will become quite restless. Since whelping is imminent, this is a good time
to allow the dog some brief exercise, as well as one last chance for
urination and bowel movements.
The mucous vaginal discharge turns to a thin greenish discharge a few hours
prior to delivery. Primary uterine contractions (labor) begin shortly
afterward. A dog may show no pain from these contractions, but she will be
nervous and restless.
Whelping
When labor signs are first apparent, the expectant mother should be left
alone. If she chooses a bedspread or other area of the house over the
whelping box for giving birth, do not move her regardless of the mess that
may result. Moving her at this time can take her out of labor and make
whelping more difficult.
Prior to giving birth, a dog will assist uterine contractions by straining
her abdominal muscles in an effort to force the puppies out of the birth
canal. The expulsion of each puppy is preceded by a greenish, fluid-filled
sac (placenta). Each puppy is attached to a placenta by an umbilical cord.
In larger litters, you may not see one placenta passed immediately after
every puppy. Some placentas may be retained and be expelled gradually days
after all puppies are born. Most puppies are born head first, but as many as
one-third may be born hindquarters first. Either position is considered
normal.
An experienced mother will break the sac covering each puppy and lick it to
clean it. She will also bite off the umbilical cord and eat the placenta and
afterbirth. An unbroken sac could drown the puppy as it tries to breathe for
the first time. Likewise, a puppy wrapped up in the umbilical cord could be
strangled, so be prepared to assist the mother, if necessary. If the mother
does not take the initiative, remove all covering membranes from the puppy,
clean its face and remove any mucus from its mouth and nose. The umbilical
cord should then be tied off with thread 1 inch from the pup's body and cut
off beyond the tie. Apply a drop of iodine or Betadine to the end of the
cord to prevent infection. The remaining part of the cord will shrivel, dry
up, and drop off at 2-3 days of life. Letting the mother eat most of the
placentas is likely to cause loose stools, and is no medical advantage.
When each puppy begins to squirm and cry on its own, place it close to its
mother so it can receive warmth and mothering and begin nursing. Once this
is done, the puppy should not be disturbed.
Most puppies are born at 30 to 60-minute intervals, but many variations are
possible. For instance, two may be born in close succession, followed by 2-4
hours of rest. A resting stage follows each birth. At this time, milder
contractions help expel remaining afterbirth in preparation for the next
delivery.
After the last puppy has been delivered, the mother will appear more relaxed
with no straining and will attend to her puppies. Allow her an opportunity
to urinate and defecate and get some brief exercise. She may have diarrhea
for a couple of days as a result of eating the placentas and afterbirth. Her
vaginal discharge may appear bloody or a greenish-black color for a few days
to 2 weeks, but this does not indicate a problem unless it persists beyond 4
weeks of whelping.
Whelping Problems
If a puppy becomes lodged in the birth canal, immediate assistance is
required. Try removing the pup before calling for help. A delay could lead
to puppy injury. Wrap a clean towel or disposable diaper around the part of
the puppy you can grasp and pull gently but steadily in an outward and
downward direction. If the puppy cannot be removed within 5 minutes, call
your veterinarian immediately.
If a pup is born weak or is ignored by its mother, your assistance can save
its life. For instance, if a newborn puppy appears cold and weak with
irregular or no breathing, hold it firmly and swing it up and down between
your legs with its head down. This will help drain fluid from the mouth and
lungs. To stimulate breathing, rub the puppy briskly with a warm towel. By
blowing gently into its nose and softly pressing its chest with your fingers
you can also help induce breathing. When the puppy starts breathing on its
own, return it to its mother.
Most mother dogs have all of the necessary tools for normal whelping. Too
much intervention on your part may be a disservice to both the mother and
her puppies; however, veterinary assistance may be necessary if specific
problems arise. For example, emergency care is required when, 2-4 hours of
intermittent straining and contractions, the dog enters a resting phase
without a successful birth.
Follow-up Care of the Mother
It is a good idea to have the mother examined by a veterinarian within 24
hours after whelping concludes to ensure that no puppies or placentas remain
in the uterus. An injection to reduce the size of the uterus help prevent
infections and other complications.
The mother will need more food once her appetite returns, and it should be
divided into at least three daily feedings. Dietary supplements can assist
milk production. Ask your veterinarian for specific formulations best suited
to your dog. Fresh water should be available at all times. If dried milk
accumulates, clean the mother's nipples carefully with warm water.
Disease Considerations for the Mother
Uterine infections, mammary gland infections, and eclampsia (milk fever) can
occur after whelping. Dark-colored material will be expelled from the uterus
for several days following whelping. Under normal conditions, this discharge
should cease within 4 weeks. If the uterus becomes infected, however, this
discharge may increase and become red and foul-smelling. Other signs and
symptoms of an infected uterus include an elevated temperature, and a loss
of appetite. The dog will also act depressed. If the mother shows signs of
an infected uterus, seek immediate veterinary care and keep the puppies warm
and nursing.
An infection of the mammary glands will also cause depression and an
elevated rectal temperature. One or more breasts will become hard, swollen,
reddish-purple and extremely painful. This condition also requires immediate
veterinary care.
Milk production and the nutritional demands of puppies can be a severe
strain on the mother. She may suffer from a loss of calcium during the first
month after whelping because her supply is utilized to produce milk for the
puppies. This calcium reduction can create a disease known as eclampsia or
milk fever. Emergency veterinary care is essential if the nursing mother
shows any of the following signs:
muscular incoordination and excessive trembling,
muscle twitchings or convulsions,
excessive drooling, or
extreme nervousness and panting.
Calcium injections can reverse these signs, but treatment must be immediate
to prevent death. Although both the puppies and the mother will try to
nurse, in the case of untreated eclampsia, nursing will further drain
calcium from the mother's body.
Care of Newborn Puppies
A good mother will do most of the work in caring for her puppies prior to
weaning; therefore, a lot of human intervention usually is not needed.
Nursing from the mother not only fulfills the puppies' nutritional needs,
but it also provides them with antibodies to help prevent infections. In
addition, the puppies have an opportunity to learn from their mother.
The two leading causes of puppy death after live birth are chilling, and a
lack of fluids and energy. Puppies that are not nursing with enthusiasm,
cold to the touch, or constantly complaining need your help. Warm them to
98-100° F rectally, and provide the necessary food. Ask your veterinarian
for advice, but be prepared for these things weeks in advance. Soon after
birth, the puppies should be examined by a veterinarian. If tail docking
and/or dewclaw removal is desired, this should be done before the pups are
about 3-5 days old.
The room temperature where puppies are housed should be no less than 70° F
and cold floors should be avoided to prevent chilling. Clip the puppies'
nails as they become sharp to prevent them from hurting the mother during
nursing. A puppy's eyes should open 10-14 days after birth. As the puppies
begin to explore their new environment, a mixture of dog food intended for
puppy growth and water or milk can be given to assist weaning. Cow's milk
can be used unless it makes the puppies sick.
Behavioral adaptation is as important as physical health in puppies. It is
best to handle the puppies as little as possible during their first 3-4
weeks of life. After about 4 weeks, you can assist each pup's positive
socialization toward people by cradling each puppy in your arms for about a
minute twice a day. Do not handle them too much or permit rough handling by
anyone, especially children.
Establish regular feeding schedules and take the pups outside or to a
specific toilet area when they wake up and after each feeding - this will
help facilitate house-training later on. Do not scold them for mistakes but
praise and pet the puppies when they urinate or defecate in the correct
place.
At 6-8 weeks of age, a stool sample should be checked by a veterinarian for
internal parasites. At the same time, the puppies should be vaccinated for
canine distemper, hepatitis, leptospirosis, and parvovirus. These
vaccinations should be considered at an earlier age if the puppies are not
able to nurse from their mother. A rabies vaccination can be given at 3
months of age and older.
Weaning
Under normal conditions, weaning will occur naturally around 5-6 weeks after
birth. The puppies will become more independent, and the mother will react
negatively to the sharp teeth and nails of her puppies.
To help the puppies make a smooth transition at this time to life without
their mother, separate the mother and pups for an increasing length of time
each day until they are together only at night. The mother's food intake
should be reduced to help her produce less milk.
Gradually replace the puppies' liquid food with a well-balanced commercial
puppy food that is intended for feeding during growth. Feed the puppies 3-5
times a day. The whole weaning process should take about 1 week.
If the mother dog continues to produce milk after weaning, her breasts could
become engorged and painful. Hot towels and a gentle massage can help reduce
the congestion. Complete withdrawal of all food and water for 24 hours often
works well. Consult your veterinarian If milk production continues after
weaning has been completed.
Orphaned Puppies
One of the primary killers of newborn puppies is the lack of adequate
warmth. The mother's natural body heat must be replaced in her absence.
Incubators, 60-watt infrared heat bulbs, heating pads or hot water bottles
can be used as a heat source. It is estimated that puppies need a constant
temperature of 85-90°F the first week of life, 80°F the second week, 75°F
the third and fourth weeks, and 70°F thereafter. Incubators with thermostats
are most efficient but expensive. The other heat alternatives should warm
only half of the available space so the puppies can choose the temperature
best suited to their needs. Be sure to cover any heating pad or hot water
bottle with towels, newspapers, or disposable diapers to prevent burning the
puppies' delicate skin.
A substitute for the mother dog's milk must be found if the natural mother
dies or is unable to care for her puppies. Cow's milk alone is not a good
alternative because it can irritate a puppy's stomach and intestine. A
temporary replacement can be made by combining two egg yolks with 1 cup of
homogenized milk or goat's milk. Milk substitutes for puppies can be
purchased from veterinarians and certain pet, drug and grocery stores.
When preparing the milk substitute, always follow the manufacturer's
directions on the label for its proper preparation and keep all feeding
equipment scrupulously clean. A good way of handling prepared formula is to
prepare only a 48-hour supply of formula at a time.
The easiest and safest way of feeding milk substitute formula to puppies is
by nipple bottle feeding or by tube feeding. Nipple bottles made especially
for feeding orphan puppies or bottles equipped with premie infant nipples
are best. When feeding with a nipple bottle, hold the bottle so that the
puppy does not ingest air. The hole in the nipple should be such that when
the bottle is inverted, milk slowly oozes from the nipple. Never squeeze
milk out of the bottle while the nipple is in the mouth; doing so may result
in aspiration of the milk into the lungs.
Newborn puppies may have a small plug in their anus which prevents normal
waste elimination. A mother normally licks each puppy, stimulating urination
and defecation. In the absence of the mother, take a piece of cotton, soak
it in warm water and wash each puppy's abdomen, anus and rear legs to
stimulate the elimination of waste. It will take about 3 weeks before a
puppy can function on its own.
A healthy puppy sleeps a great deal during its first few weeks of life, and
it should gain weight every day. Consult a veterinarian if a puppy does not
sleep well, loses or fails to gain weight or shows signs of illness.
Glossary
Eclampsia - Disease which is also referred to as milk fever caused by
calcium reduction in nursing mothers
Placenta - Fluid-filled sac which is the organ of metabolic interchange
between the fetus and mother
Weaning - To take from the breast, depriving permanently of breast milk, and
nourishing with other food
Whelping - The act of giving birth to puppies
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