THE ART OF
BREEDING GREAT DANES OR,
TO BREED OR NOT TO BREED...
[Excerpt from The
Great Dane, Model of Nobility, by Jill Swedlow]
(Please
note, illustrations still pending)
...That
is the question, to sort of quote the famous Bard.
The
breeding of dogs is truly an art. The artist’s medium is living
flesh. When one plans a breeding the purpose should be improvement of the
breed. Obviously one must be extremely knowledgeable to have a chance of
attaining this goal. The breeder must be willing to thoroughly health
check both parents, to make sure the temperaments of both parents and their
ancestors is typical of the breed, and to take full responsibility, both
practical and financial, for every dog they cause to be born until the day it
dies. Besides this the breeder must have a thorough knowledge of
pedigrees, conformation and the Standard for the breed. One does not
obtain this knowledge overnight. This is why no novice should breed a
bitch unless they have an experienced mentor to guide them, and have taken the
time to educate themselves. Be prepared to spend a lot of money on
this litter. And know in advance that you will NOT MAKE
money! Be happy if you break even.
Those
of you who have or will purchase a Dane for a companion only, need not even
read this chapter because your dog should never be bred. Your dog
was purchased as a pet because he or she did not have that exceptional
conformation that made him/her worthy of breeding. Now I know this sounds
a bit elitist, but there are good reasons why the breeder designated your dog
to be of pet quality. Not every dog needs to be bred but that in no way
demeans the wonderful attributes of your loved pet. Dedicated breeders
strive (or should strive) to breed only from the very best specimens in
the breed in order to, hopefully, keep improving the overall quality in the
breed from litter to litter. If the breeder of your pet quality dog did
not sell you the dog on limited registration or specify that your dog should not be bred and you’re actually thinking of
breeding it, please give serious attention to the following.
SELECTING AND EVALUATING A BROOD BITCH
If
you want to be known as the breeder, you must own the bitch, not the dog.
AKC identifies the bitch owner as the breeder. In that
light, any Great Dane bitch can produce a litter of Great Danes if she’s
mated to another AKC registered Great Dane. However, we want to improve
on our bitch and hopefully produce a litter of outstanding, healthy, good
tempered, long lived Great Danes. Great Danes who will
grow into dogs who will bring happiness to their new owners.
Becoming
a dog breeder is a serious responsibility. The little puppies that you
will cause to be born, have no choice in the matter,
nor do they have any control over the life that they will live. You, and
only you, are fully responsible for this so you’d better make some informed
decisions. This begins with the decision to breed your bitch or to
purchase a bitch for this purpose. If you are already an established
breeder, the chances are that you already have a lot of knowledge as to what
combinations of parents should produce the best litter. The operative
word here is ‘should’. There are many well-known breeders who will
breed bitches without health checks, or who will overlook the fact that the
bitch or stud has a poor temperament. Please, before you decide to breed,
be honest in your evaluation of your bitch. A championship title is no
guarantee that a bitch should be bred. If you have doubts, consult a
fellow breeder whom you respect. Sometimes we become so involved with our
dogs that we can’t see the faults that may be obvious to others. This is
called ‘kennel blindness’ and no one should breed if they’re afflicted with
it. These are the breeders that consistently produce garbage, year after
year, litter after litter. I know of several. Some are even ‘well-known’.
If your bitch is of breeding quality, there
is still a lot to consider prior to making the decision to breed.
Whelping a bitch and raising a litter is a full
time responsibility. You cannot expect your bitch to take care of the
puppies on her own during the day while you’re at work. You need to be
with her for at least the first 3-4 weeks of the babies
lives. A new litter will turn your household upside down.
Consider
that the pups usually wait until you’ve fallen soundly asleep to start arriving
in the middle of the night. You can usually count on at least one
sleepless night, and probably several if you sleep by the whelping box so you
can be sure that none of the puppies get squashed by mom. Even the most
careful dam can sometimes hurt a puppy this way without meaning to.
You
need to be close by for at least 4 weeks so that blankets can be washed and
changed and messes cleaned up. (Yes mom does clean up after the
puppies, but there’s always an occasional stray turd laying around). Once the puppies are being weaned
you’ll be providing from 4 to 5 meals a day. And OH! What a MESS
they make in their first meals. They like to swim in the mush. This
is, of course, a wonderful treat for mom, as she licks her little pupcakes clean, but what a mess for you! It
often takes me ½ hour to clean up the floor of food papers, wash the food off
the pups that mom missed and then police the area for any stray poops/pees.
As
the pups become older and leave the whelping box your work really
begins. 10–15 poop runs a day is at least average! Keeping fresh
newspapers down, providing lots of attention and socialization (you know, playing
with the little dolls! Oh how we suffer!) mopping
up the spills around the water dish when they begin to learn how to swim (and,
incidentally, drink water!) and generally being nearby in case someone gets
into trouble, such as becoming stuck between mom and the wall.
Now
that they’re older you need to begin lead breaking and socializing outside the
property as soon as they have enough vaccines in them, around 8-10 weeks of
age. I will plop mine in the van and take them to a little shopping area
where, one at a time, they go on walks around the shops meeting new friends.
All
the above is just for a normal, uneventful whelping and litter. What if
your bitch dies, as my friend Wendy's did, when her litter was 4 days
old? Wendy had to hand raise a litter of 7, and it about did her
in! All pups were bottle fed rather than tube fed as puppies need the
time sucking to become well adjusted. Wendy got little sleep for the next
5 weeks. The puppies also had several problems and had to be taken to
emergency care. (Talk about making huge profits from breeding dogs!
Ha! I think the final vet bill total came to around $5000.00!)
Just
be sure that you are willing to give up having a life of any kind other than
being a gofer for your bitch and her litter until they go to their new
homes. So if you’ve decided that this is what you want to do, read on.
My First Litter
My
foundation bitch was named Homewood Country Sunshine. I called her Sunnie. (How original of me!) She was a big girl with
a lot of bone and substance.
Not
long after I bred her she began increasing in width just as a pregnant bitch is
supposed to. Then I noticed that she seemed to be shrinking! My vet
and my friends assured me this was nothing to worry about. When she first
started whelping I was sound asleep. What came out of her were black,
tarry things that looked like crow skulls with some black material
attached. I first became aware of them upon rising and stepping bare
footed on one! Yuck! So at
Because
I didn’t get the bitch I wanted in this first litter, the breeding was
repeated. It consisted of 3 bitches and 4 dogs. One of those
bitches turned out to be Ch. Sunnyside Daffodil, my first champion.
From
the time I began exhibiting her, many of the handlers were hinting around about
handling her. She was a gorgeous puppy. Handling fees being what
they are, I decided to handle her myself, at least through the puppy
classes. I’ll tell you, I was one inept handler, too! The first time
the judge pointed at us for Winners Bitch, I stopped dead in the center of the ring, stupidly pointed to myself and said,
‘who me?’ The second time she took points from puppy, I did the
same thing. After that I decided that she obviously didn’t need a handler
but I’d have to remind myself not to go, ‘who me?’ when we won!
I
guess the point of all this is to remind you that breeding is time consuming,
hard work and can often be heartbreaking
EVALUATING A BITCH FOR BREEDING
Although the page on ‘good and bad
reasons to breed’ covers much of this subject, there is a lot more to it
than that. If you do not yet have your foundation bitch and are about to
begin your search, you should start with researching the families of bitches
under consideration.
The
first thing that will probably attract you is the general ‘type’ that certain
lines and families produce. Once you’ve decided on this, start asking
questions about what health and temperament evaluations the dogs in the
pedigrees have had. It’s unlikely that you’ll be able to trace these
traits for every dog, but at least try to get an idea. It isn’t too much
to expect that the dogs for the last 2 or 3 generations (hopefully more) have
at least had their hips evaluated for hip dysplasia.
Ask to see the OFA certificates or letters from the veterinarian who did the
evaluation.
It’s
true that many breeders hesitate to sell their best puppies to a novice.
This is why it’s a good idea to attend shows, meet the breeders and try to find
someone who will act as your mentor as you learn about Great Danes.
Before
you take the first steps to breeding a bitch, it’s a good idea to have at least
a working knowledge of genetics.
GENETICS, THE BREEDERS BLUEPRINT
Let
me state here and now that I am not a geneticist nor do I claim to be an expert
on this subject. I have, however, done a great deal of reading on the
subject and used and studied it in my many years of breeding Great Danes,
birds, horses, and Miniature Horses. Once the basic principles are
learned and understood, it becomes an invaluable tool to breed
improvement. It helps you to understand why certain traits that were not
seen in the conformation of the parents can turn up in the conformation of the
offspring. You no longer feel as if you are groping blindly in the dark in your
quest to improve your dogs.
I do
not intend to delve too deeply into how the sperm and ovum carry the genes or
the mechanics of microscopic reproduction. This subject can be learned
from many good texts written for the layman in comprehensible terms. If you
have little or no knowledge of these facts, you should learn your basics as it
will give you a better understanding of the information contained in this section.
I have included my own basic descriptions in that, without some knowledge
of reproduction, you will not understand the following concepts. Mainly I
intend to explain how genetic understanding can be used to accomplish your
breeding goals and how I use it.
The Importance of a Pedigree
When
planning a breeding, the more information you have about each parent’s
relatives, the more accurately you can predict what traits that particular
animal is likely to pass on to it's offspring. The ancestral names, which
appear on a pedigree, have no value unless you have specific information about
as many individuals as possible. Try to actually see as many of
the ancestors as you can. Evaluate each one in terms of conformation,
health and temperament and what they have produced if applicable. Keep a
file on each dog, either on your computer (my method) or on hard copies so you
can refer back as needed. Photographs or videos are also extremely
helpful.
If
you cannot see the animal in person, interview those who have. Ask them
as many questions as you can think of about each dog. The more
information you accumulate, the more accurate will be your ability to predict
what to expect in the litter.
The Mechanics of Inheritance Some elementary
genetic principles must be illustrated here in order to understand what
follows.
The
new pup inherits half it’s genes from its sire and half from its dam. The
genes are the chemical blueprint which determines every inherited physical
characteristic each pup in the litter will have. They determine his size,
color, whether his back is long or short, whether his
head is pretty or common, on and on for every part of his body inside and out.
There
are two types of cells in the dog, as in other living organisms. The body
cells, known as SOMATIC cells, which are found in all tissues of the
body such as skin, internal organs, bone, etcetera. These somatic cells
differ from the sex cells in that they carry a full compliment of the animal's
genetic material, 78 CHROMOSOMES in the case of the dog. The GENES
reside upon the chromosomes. The sex cells, called GAMATES, are
the sperm cells in the male dog and the egg cells, or ova, in the bitch. The
gametes carry only ONE HALF the chromosomes of the somatic cells
(Illustration # 2). Since the genes are found contained within the
chromosomes, this means that the gametes only have one half the genes of the
body cells. This seems to be the most difficult concept for the beginning
student of genetic inheritance to grasp so I have included Illustration #2 to
help clarify this point.
Illustration
# 1 is of a SOMATIC CELL (body cell). It contains the nucleus which
contains the 64 pairs of chromosomes, which contain the genes. (Only 3 pairs of
the dog’s chromosomes are shown for the sake of clarity).
Dominant and Recessive Genes
Without
going into deep technical detail it is important to understand the basic
concept of dominant and recessive genes. This is probably one of the greatest
points of confusion among those who breed animals but have little knowledge of
genetics. Because of these traits, there occurs a phenomenon whereby an
individual may carry genes to express a specific trait (genotype) but the trait
is not expressed physically (phenotype). Let me be more specific.
Genotype is simply a word that refers to the actual genetic makeup of the
individual; it's the sum total of a particular genetic makeup. You may or
may not actually see the physical trait controlled by a certain
gene(s). Phenotype is the physical body that you can actually see and
measure such as fawn coat color or a bad bite.
It is the proof that an animal really does carry a gene to control the
trait. At the risk of being redundant, a trait controlled by recessive
genes can often be hidden by a dominant gene, but a dominant gene always
is expressed physically (phenotypically).
I
wish to mention here that for the sake of clarity, I have purposely left out
discussion of modifiers, complete and incomplete dominance, masking genes
etcetera. Not only would they tend to muddy the water of understanding
the basics, which is difficult enough, but they are always a handy scapegoat to
use if the unexpected occurs in a breeding. "Oh well, the stud must
have carried masking genes and modifiers!", you
can state wisely.
|
Illustration
# 1 Somatic
Cell (Body Cell) – Contains the nucleus which contains the pairs of
chromosomes (only 3 pairs are illustrated for clarity), which contain
the genes. |
|
Illustration # 2 The
gamates (sex cells) when manufactured within the
sperm & ovaries have only 39 chromosomes. The 79 pairs of
chromosomes have split, each half carrying their respective genes. |
|
Illustration # 3 When
the ovum is fertilized by the sperm, each carrying only ½ of each parent’s
genetic material, the new embryo has the full complement of 78 chromosomes
with their genes. This pup is a unique individual whose total genetic makeup
is unlike any other. |
[INSERT PHOTO # 12-10] It is also worth
mentioning here that, unfortunately, there are very few inherited traits, which
are attributable to only one gene. Most traits are made up from several
genes interacting with each other. In order to understand these principles
though, it is necessary to use the simple dominant and simple recessive traits.
I
will use fawn and brindle coat color as an example
since it is an easy trait to see and understand. It is also inherited in
a straight forward way and is controlled by one gene. The gene which
produces the brindle pattern in Great Danes is a dominant gene.
The gene which produces a fawn colored coat, is recessive to the brindle
gene. Since brindle is the dominant gene, a Dane showing this
pattern as his phenotype can still carry the fawn color
gene recessively as part of his genotype. Remember I stated that each
parent carries two sets of genes and chromosomes but gives the offspring only
half their chromosomes, thus half their genes.
The
fawn bitch (who carries only fawn genes donates one of her two recessive
fawn genes, the brindle dog [who, for the sake of this example is a homozygous
brindle, which means he carries only brindle genes and is himself,
brindle] donates one of his dominant brindle genes. Their offspring
carries one gene for each color as his genotype but
his phenotype can never be fawn because the brindle gene is
the dominant one of the pair. Now we have a whole new set of
genes. What happens if this new individual, who carries both a fawn and
brindle gene (making him genetically heterozygous which means he carries a gene
for each color), is mated to a bitch who is genotypically identical to him? This means that she
carries the same genetic makeup for fawn and brindle, being phenotypically
brindle.
There
is no certain way to predict exactly how the genes will combine unless you are
dealing only with animals who are homozygous for the
pure dominant or recessive trait. In other words, a mating between a
brindle dog and a brindle bitch, both of whom are homozygous for the brindle
gene can produce nothing but brindle offspring all of whom are genotypically homozygous for brindle and all of whom are phenotypically brindle. A dog which is homozygous for such
a trait, is said to "breed true" for that
trait. (If you are getting confused here, be sure you understand the meaning of
homozygous [both genes for said trait are the same], heterozygous [carries
genes for both traits, fawn and brindle], genotype
[what the genes actually are] and phenotype [the actual appearance of the body
pattern]).
Square #1
shows the color expectancy from the above proposed
mating of the heterozygous brindle dog and bitch. Let "B" represent
the dominant brindle gene and "f" represent the recessive fawn gene.
(The geneticists do it a bit differently, but this will be clearer for our
purposes). This average is based on 100 offspring. We will now take
each square of the graph individually. Each
square represents a pup, its genotype and phenotype for the fawn and brindle
genes.
Square and Pup #1
This
pup's genotype (BB) contains 2 genes for brindle. His coat color is brindle. He can pass on only brindle genes
to his offspring since he is homozygous for the brindle gene and does not carry
a fawn gene recessively.
Squares and Pups #2 & 3
These
pup's genotypes (Bf) each contain one gene for brindle and one for fawn.
Their coat colors are brindle. They can pass on
either the brindle or the fawn gene to their offspring since they are
heterozygous for brindle and fawn. Since the fawn gene is recessive to
brindle, it is not able to express itself in the pup's phenotypes.
Square & Pup #4
This
pup is our example of two recessive genes finding each other and expressing a
genetic trait of its parents, which the parents did not show in their
phenotype. This pup’s genotype (ff) contains two genes for fawn color. His coat color
pattern is fawn. He can pass on only fawn genes to his offspring since he is
homozygous for fawn. If he carried a brindle gene, he would appear
brindle since brindle is dominant to fawn.
The
chart is a shorthand method of calculating the probability of any two genes
finding each other at the moment of conception. The heterozygous male has
sperm, half of which carry a fawn gene and half of which carry a brindle
gene. The heterozygous bitch has ova with the same makeup, half carry the
fawn gene and half carry the brindle. It is pure chance as to which sperm
finds which egg. The laws of probability tell us however, that in a
sampling of 100 offspring, approximately 25% will be BB, (homozygous for the
dominant brindle gene with a brindle phenotype). 25% will be ff,
(homozygous for the recessive gene for fawn coat color,
with a fawn phenotype). And 50% will be Bf, (heterozygous for fawn and brindle
with a brindle phenotype).
If
you have already grasped the concept, please bear with me as I give one more
example. It is imperative that these principles be understood since they
are the very foundation of genetics. Square # 2 mates a brindle dog (with
a heterozygous genotype for fawn and brindle, Bf) to a fawn bitch, (homozygous
for fawn ff).
Squares and Pups #1 & 3
Both
pups have brindle phenotypes and heterozygous genotypes for fawn and
brindle. Both can pass on either fawn or brindle genes to their
offspring.
Squares and Pups 2 & 4
These pups have fawn phenotypes and
genotypes since a double dose of a recessive gene is necessary to find
expression. If they are bred to a fawn mate they will produce nothing but fawn.
I
have taken you through all the above in order to more clearly explain the behavior of simple dominant and recessive gene pairs. Since
the chromosomes occur in pairs in the somatic cells, so do genes. I'm
going to continue with the example of the fawn gene versus the brindle
gene. As previously stated, these traits are controlled by single genes
(not multigenetic as are most traits, unfortunately
for us!) and brindle is dominant to fawn.
When
gametes (sex cells) are formed, they contain only 1/2 of the genetic make-up of
each parent. One gamete may end up with the gene which causes brindle
stripes, and the other gamete may carry the other gene for fawn body color. The same will be true of the male’s sperm
cells. It is pure chance as to which of the bitch's ova becomes ripe
first and ovulates into the fallopian tubes to await the dog's sperm. It
could be ones with the fawn gene or ones with the brindle gene. Since
there are an equal number of each, there is a
fifty-fifty chance of it being either. The same holds true of the dog's
sperm. Approximately one half of the millions of sperm contained in each
ejaculate carry his fawn gene, and one half carry the
brindle gene. If the sperm which fertilizes the ova carries a gene for fawn,
and the ova has the gene for brindle, the pup will be born brindle since
brindle is dominant to fawn. The resulting pup will carry one gene for brindle
and one for fawn and is, itself, genetically capable
of producing get of either color depending on the
genetic make up of its mate. If the bitch's ovum happens to be one with
the gene for fawn, and so is the dog's sperm, the pup will be fawn and carry
two genes for fawn. If the bitch's ova carries the brindle gene and so
does the dogs sperm, the pup will not only be brindle but will carry brindle in
a double dose (both genes brindle, eg. homozygous)
and can NEVER produce any get except brindle since brindle is dominant
to fawn.
The
laws of probability tell us that with animals carrying simple recessive and
simple dominants, the chances are always 50-50 as to which gene is inherited by
the pup. The calculations are over the expectancy of 100 offspring so if
your brindle dog has been bred to 3 fawn bitches and has produced 15 brindle
pups, there is STILL a 50-50 chance that the next litter he sires could contain
fawns. A small chance, but still a chance. This
will also tell you something about his genotype. You know he
carries a recessive gene for fawn because he has produced fawn pups even though
he is himself brindle. You also know that he carries the dominant brindle
gene because he is brindle.
Sometimes
semantics seem to be responsible for some misunderstanding. One breeder
once asked me why her brindle dog sometimes produced fawn pups instead of
always producing brindle pups if the brindle gene was dominant. She
didn't understand that the gene had to be passed along to the pup
(inherited) in order for it to be able to exert its dominance. The
chances of the brindle gene being passed along, when the dog carries a
recessive gene for fawn also, is 50-50. Only dogs that are
homozygous for the brindle gene (they have 2 genes for brindle and carry no gene
for fawn) will produce 100% brindle pups.
Admittedly
the above examples are overly simplified when compared to multi-genetically
controlled traits. There are other types of genes which behave in
different ways. In order to predict the expectancy of certain traits
accurately, you must have a pretty good idea of the mode of inheritance.
The
example of canine coat color can be translated into
many traits of Great Danes. Brindle is dominant to fawn but there are
other colors (and patterns) in the breed
which are not quite so simple to understand and predict. The
relationship between genes, which is dominant to which, and which are recessive,
can be likened to a pecking order among chickens. The rooster (most
dominant gene) is at the top of the heap and bosses everyone around. Next
is the bossiest hen who only takes orders from the rooster. Below her are
the rank and file of her subordinates, all of whom obey their betters, and in
turn, control their underlings until you come to the bottom of the heap and
find the little hen (most recessive gene) whom everyone picks on. She
never gets to eat or express herself until she is the only one in the barnyard.
Now
you are probably beginning to wonder how any of this can be helpful since
little is known of the mode of inheritance of many canine traits. Also,
few traits are controlled by a single gene. Most are multi-genetic, such
as head shape. There are probably thousands of genes and their modifiers
which make up the blueprint which determines the shape of a dog’s head.
Although it would be very difficult, not to mention impractical, to try
isolating each gene and how it behaves in creating the overall blueprint, these
controlling groups of genes often tend to act in recessive or dominant ways as
a group. For instance, let us say you have a dog with a beautiful
head. You mate him to 10 bitches whose head type ranges from ugly to
plain, but none are gorgeous. If 75% of the offspring have beautiful heads like
their sire, you can be fairly accurate in concluding that your dog is dominant
for his head type. This can be applied to any conformation trait or group
of traits which tend to occur in the same manner. But what about traits
which, as a group, behave in a recessive manner? Since recessives are
masked by dominants, they can be difficult to isolate. (The recessive genes
often control undesirable traits such as an undershot jaw or light eye color).
We
will use an undershot jaw (the lower teeth protrude forward of the upper) as
our example. Assume you breed a bitch and dog to each other who both possess a correct bite. Some of their puppies
are undershot. What does this tell us? It is highly probably that both
parents are carriers of the recessive gene, or genes, which produced the
bad bite. (Remember the brindle dog and bitch who
both carried fawn recessively and produced a fawn pup?) We are dealing with the
same principle here. What makes a trait like this difficult to breed out
is it's recessive nature. Their pups could as
easily have had a correct bite but still carried the genes for a bad bite
recessively. (See Illustration #?). These recessives
can be masked by their dominant alleles (genes which appear on a common
location on the chromosomes) for generation after generation until the time
when they pair with another like recessive and express themselves in the
puppy’s phenotype. If you will refer back, once again to chart #?, you will see that there is a 50% probability that an
offspring of recessive carrier parents will itself be a carrier.
This
is a rather sobering thought, especially when one realizes that such recessives
can skip generations and the individual must be test bred in order to ascertain
if it is, indeed, a carrier. So what is the logical solution to this
problem? Intelligent breeding practices and ruthless
culling, which will be discussed later.
There
are several different methods of planned breeding used by knowledgeable
breeders. All have their good points and their drawbacks. Sometimes
one must simply experiment with the different methods to establish which will
work best under any given circumstances. This, then, brings us to a
discussion of inbreeding, linebreeding, and outcrossing.
Inbreeding
Inbreeding
is generally considered to be the closest type of breeding possible. Full brother to full sister, mother to son and father to daughter.
Ironically, an occasional sister/brother mating may not be genetically close at
all since the possibility exists for each sibling to have received entirely
different sets of genes from each parent. This is, however, seldom the case and we can assume it to be inbreeding for our
purposes.
Those
who do not understand genetic principles often condemn inbreeding, claiming
that it weakens the animal which it produces. In
many cases this can be true, but inbreeding itself is not the culprit.
By
its very nature inbreeding gives the greatest probability that recessive genes
will be expressed. This is because closely related animals are more
likely to carry the same recessives in their genotype than unrelated
animals. By breeding these close relatives to each other the chances are
high that two recessive genes, or groups of recessive genes, will meet and
produce the trait they control in the animal's phenotype. Inbreeding's poor reputation is due to the fact that traits
which are controlled by recessive genes are often undesirable, such as light
eyes or incorrect mouths. If the trait they control is desirable,
then inbreeding is considered to be successful, but you usually get some of
each.
Inbreeding
can be a very useful tool for pinpointing an animal's genotype. When
inbreeding is employed, it is safest after linebreeding
has set a type and you have related dogs that consistently produce the
qualities you have been striving to "set" in your breeding
line. You should have a very clear idea of what your gene pool is capable
of producing and then use only animals whose phenotype is as nearly perfect as
possible. Even then it can be risky, but if successful, you have a real
prize. Inbreeding should be a tool held only in the hands of a
knowledgeable breeder, it is definitely not for the novice.
Linebreeding
This
practice usually includes pairings such as, niece to uncle, grand child to
grand parent, half sister to half brother or a pairing which includes one
animal's name somewhere within the first three generations on both sides of
the pedigree. Linebreeding is probably the safest
approach when establishing a breeding line. Although recessives can
certainly be expressed when using this method, the frequency is not as high as
with inbreeding. There is a wider margin for error here because progress
is more gradual.
As
with inbreeding, you must be sure to use only superior quality individuals when
linebreeding. You must also be certain that the
ancestor being linebred on is himself or herself a
superior specimen of the breed, and has the traits you are trying to set in
your line. If you linebreed on faulty animals,
you're more than likely going to get faulty pups. You must also be sure
not to breed two animals together that have faults in common. In other
words, if the dog is a bit cow-hocked, make sure that the bitch is perfect in
her rear legs.
Outcrossing
This
is the mating of unrelated animals who do not have any
ancestors in common within the first 4 or 5 generations. Unlike inbreeding and
line-breeding, this method will do nothing to make the resulting pup more
homozygous genetically. It is very difficult to predict with any accuracy what
results might be obtained from such a mating unless the outcross mate is,
himself, line bred. The continued use of this breeding method will never
produce a group of animals which breed true for any characteristic.
One advantage of this method is that you
are less likely to encounter any recessive genetic problems unless the parents
each carry these genes.
Outcrossing can best be used when, after several
generations of linebreeding you have established a
gene pool which breeds true most of the time for the traits you desire, but you
find that your gene pool does not contain genes for producing, for example, a
beautiful head. You will try to locate a stud dog, who is from a linebred family with beautiful heads, and who
has himself consistently produced pups with beautiful heads. Even though
this animal himself is the result of linebreeding he
is unrelated to your own animals and the resultant breeding is considered an outcross.
Then you take the good headed results of this mating and breed it back to your
own linebred bitches. You have now obtained the
genes you need to work with in order to put beautiful heads on your future
puppies.
Besides
the above outlined breeding techniques, there are several others. I will
not go into them here, but many breeding books can fully explain them to
you. Much can be learned from books concerned with breeding other types
of animals such as horses, cattle and chickens. The principles are
identical.
The Canine Genome Project
There
is currently a world wide effort to map the canine genome. According to
an article entitled, Mapping A Brighter Tomorrow
by Melissa Goodman, DVM which appeared in the AKC Gazette dated January 1998,
“The goal of the canine genome project is to produce a map of all the
chromosomes in dogs. This map can then be used as a framework to identify
which genes cause a particular inherited disease, as well as genes for other
inherited characteristics, such as behavior and
conformation.
The
development of a genetic map of the dog has already resulted in several helpful
assays, including tests for progressive retinal atrophy and copper toxicosis”. Breeders are already using this
information effectively to eliminate this malady in affected breeds.
You
don’t have to be a rocket scientist to realize the potential for such a
study! Imagine being able to select dogs who are genetically free of
health problems, temperament problems and who’s conformation comes close to the
standard!
Selecting a Stud for Your Bitch
You’re
bitch has finished her championship. Her temperament is wonderful and her
conformation worthy of passing on. You are fully prepared to be
responsible for her puppies until the day they die, no matter that they live
elsewhere. Her OFA hip rating came back normal as did her thyroid
screening. (These are the 2 tests I consider essential when I
screen my own bitches and for studs I breed to). I also screen for
cardiac normality. Unfortunately, unless the dog has a heart problem at
the time, the screening test cannot predict that she or he will never
have a problem. I guess we just do the best we can with the tools we
have. You’re ready to breed her!
Judges
are supposed to evaluate dogs in a positive manner, rather than ‘fault
judge’. But when you evaluate a bitch for breeding, you must know the
faults that need improvement as well as the assets, in order to select the
right mate. If you have a bitch that toes in, you do not select a mate
that toes out. You select a stud that is correct for this
trait. Otherwise you’ll get puppies that toe in and puppies that toe
out. Do not overcompensate for your bitches faults.
When
you think you’ve found the future sire of your litter, one who is correct where
your girl is faulty, but also has most of her desirable traits, you next need
to find out about his relatives. What about his sire and
dam? Were they also correct for the traits you’re trying to
improve? What about siblings? Aunts and uncles?
Check them all as this will give you a much broader picture of what the genetic
make up of this male might be. Of course one of the most important
things to look at are any puppies he has sired along
with their dams. If the dams have some similar faults to your bitch and
the puppies are correct for the traits, it's a good bet that this dog can help
to accomplish your goals.
The
pictures of Skylark and Randy (below) illustrate a pair of dogs that compliment
each other. The litter is even better than I hoped!
When
you’re evaluating possible sires, please make temperament one of your
priorities. This breed is far too large to excuse dangerous
temperaments. I’m sorry to have to say that there are some well known
breeders out there who care little for temperament! Some of the most
frequently advertised and top winning animals are overly aggressive or
shy. The owners continue to breed them or allow them to be used at
stud. I think that this is both irresponsible and criminal!
I’m
not condemning the breeder who has an occasional shy or aggressive
dog. This can happen no matter how cautious we are as breeders.
When one considers the original temperament of the first Great Danes imported
from
You’ve
selected the best stud you can find for your bitch and you’ve signed the stud
contract and fully understand what it does and does not guarantee. As
your bitch’s season nears, you have several things you must do prior to
breeding.
What To Do
Before You Breed
Brucellosis testing
Most
stud owners have, as their minimum requirement, a request that your bitch be
tested for brucellosis. This is a disease that will render both bitch and
stud sterile, for which there is no cure. You should also request this
test from the stud owner as well as a copy of the test. You should
produce a copy of your bitch’s test, too.
Additional testing
You
should provide the owner of the stud with copies of the OFA papers and all
other health tests that have been performed on your bitch and the stud owner
should have provided you with same. If the dogs are microchipped
or tattooed, it is desirable to have the vet who performs these tests, verify
that he is, indeed, testing the dog that is represented.
It
isn’t uncommon for dogs that are clear for certain health traits to be
substituted for others that aren’t. Without permanent identification,
there is no way the veterinarian who performs the tests can verify that the dog
is who it’s purported to be. If the dog’s ID is shown on the test papers,
you can be assured that the dog is really clear.
Cultures
I
routinely have my bitches cultured a couple days after they come into season if
they are to be bred. I request a culture and sensitivity be run.
This way, if there’s an unusual growth of anything, we know immediately which
antibiotic it’s sensitive to. Vaginal flora are
a normal occurrence in the vagina. However, if one of these organisms produce a large growth, it’s a good idea to control it.
If
you should be unlucky enough to have a growth of mycoplasma
show up, it would be a good idea to forget breeding on this season. Mycoplasma almost always results in either no pregnancy or
dead/dying puppies. Best to treat the infection and try
for the next season.
Rather
than using a systemic antibiotic, I prefer to use an antibiotic douche.
Most often these organisms are sensitive to Gentocin
which your vet can make into a douche solution for you.
Douching
your bitch is easy. A 500 cc dose syringe and a stallion catheter is all
you need. The bitch, being in season, usually is quite receptive to
having the catheter inserted. It will usually go up into the vagina about
8 inches. You then depress the plunger and you’re done. I douche my
bitches for 2 days, AM and PM, prior to breeding. DO NOT douche
within 48 hours of the breeding as you may kill the sperm.
Stud owners would be wise to
occasionally culture their studs sheath and treat any problems accordingly.
Progesterone Testing
Depending
on the breeding method you use, progesterone testing may become
necessary. I progesterone test even for a natural
breeding, especially if the bitch or stud are virgins. If you’re
doing an artificial insemination or shipping chilled fresh or frozen semen, you
must do progesterone testing. All progesterone testing is not
equally accurate so talk to other breeders and stud owners who have used these
methods, and go to the vets and laboratories who have
had the highest rate of success.
Semen Evaluation
If
the stud is a virgin, or if he’s missed his last bitch, it’s a good idea to
have a specialist do a semen evaluation. Even though it only takes one
sperm to fertilize one egg, it’s necessary to have a very high number of active,
normal sperm in order to impregnate the bitch. Ask the stud owner for a
recommendation or contact one of the cryobanks that
collect and store sperm.
The Bitch’s Estrus
Cycle
Most
bitches will come into season every 6 months beginning from the age of 9 months
or so. Mine tend to have their first season after the age of 10 or 11
months. For some bitches it is normal to cycle every 4 months. For
others, every 5 months or even only once a year can be the norm.
The
first thing you’re likely to notice when your bitch comes into heat is the
discharge of blood from the vulva. If you have a really bad case of
‘puppy fever’ and you’ve been watching your girl like a hawk, you’ll notice
that the vulva will swell prior to seeing the first discharge. Every book
I’ve ever read on this subject tells us that the discharge will change to a
‘straw color’ as the bitch approaches the time she’s
fertile. I’ve NEVER seen this in my bitches. They continue
to bleed right through the breeding dates. The only change I’ve ever seen
is that the blood becomes a little more dilute as the days
progress.
If
you’re planning a natural breeding, you may wish to skip progesterone testing
and go by what the dogs ‘say’. If this be the case, you might want to
present the bitch to the dog on her 10th day for a first
‘check’. The most common breeding dates are day 11 & 13 if you’re
going to do only 2 breedings. These are the
most common ‘fertile’ days for the bitch, but remember bitches can fluctuate.
If you’ve followed this rule on a virgin bitch and she came up empty, I’d
strongly suggest progesterone testing prior to breeding on the next
season. Some bitches are fertile on day 8 and some not until day
18! (Days are counted from the first time you see blood discharged from
the vulva).
Natural Breeding
When
I take my bitches to be bred, I ask the stud owner about their procedure.
I much prefer to begin with both dog and bitch on lead and the bitch unmuzzled. I like them to be able to say ‘hi’ first
and play a little, which is what nature intended. Even if a bitch isn’t
ready, and snaps, it’s highly unlikely she’s going to harm the male.
She’s just warning him to ‘stay away’ and he’ll understand this and
comply. Sometimes he can talk her into standing while he mounts, and
other times, it’s just not quite the right time.
On
another note, if a bitch will not stand and tries to savage the dog, she should
not be bred at all. One of the most important traits for which one should
select is fertility, and dogs who breed readily. It’s interesting to note
here that the dam of the litter mentioned above that had the temperament and
health problems, was a very reluctant breeder. I had to muzzle her and
hold her up in order for the stud to breed her. Guess she knew more than
I did! I remember too, that her sire GROWLED during the
tie! The resultant litter was full of problems, both temperament and
health.
Natural
breeding is the most common and most successful method of breeding. Even
with all the scientific advancements I still believe that the dog and the bitch
know best when the moment is right!
I
like to allow the dogs to meet each other while held on a 6 foot lead.
Some dogs will greet the bitch and invite her to play with him. If the
bitch seems so inclined, it’s to everyone’s benefit to let them both off lead
in a small enclosure and let them play. The dog will usually try to mount
right away. If the bitch is receptive, she’ll brace her hind legs apart,
and ‘flag’ her tail to the side. Often you can allow the tie to occur
before steadying the bitches head and helping the male to turn.
The
‘tie’ occurs when the bitch’s vaginal muscles contract and hold the ‘ball’ that
forms at the base of the penis. The natural impulse of the male is to
dismount with both forelegs on one side of the bitch. He will then lift a
hind leg and try to turn so that the dogs are tail to tail with only the tie
holding them together. It is during the tie that the bulk of the sperm is
ejaculated. The first fluid is usually clear seminal fluid. When
the fluid becomes milky, it’s full of sperm.
Be
sure and have a good hold on the bitch’s head when the tie occurs. This
is often painful for her and she may try to turn and bite.
If
the dog is interested and trying to breed, and the
bitch is standing well but they’re just not connecting, don’t panic. The
chances are that you’re a day or two early. Commonly, when you try on the
following day, it’s a case of instant tie!
Often
the handlers want to constantly interfere with the dogs in an attempt to
facilitate the breeding. It’s been my experience that the dogs are far
more adept than we are and if left alone, will accomplish the breeding when the
time is right.
The
first time I ever attended a breeding was a real education! I was rooming
with Penny Twaits whose mother Kathleen Twaits, together with Jackie White, shared the Tallbrook Farm’s prefix. (It’s all Penny’s fault that
I’m involved with this hobby!) It happened that Penny and I were at
Kathleen’s house when a young, virgin bitch was brought over to be bred to Tallbrook’s Darby Dan, also a virgin. The dogs were
introduced and all seemed to be proceeding normally. The bitch was
interested, Darby was doing his thing, but they were having trouble. The
bitch was not very tall and Darby was having trouble lining up with the target.
This
went on for hours it seemed! They’d try, fail, get too tired, or Darby
would get an outside tie, and we’d put him away to rest for awhile. Then
someone got the bright idea of propping the bitch’s rear up a little
higher. Out comes Darby again and it looks like its working! He’s
certainly closer to the target than before. But still he’s getting
outside ties.
After
about 3 hours of this, Darby returns from still another rest period and is
happy to keep on trying. I’m standing behind him just as he begins to
penetrate the bitch. Without thinking, I put my arms around Darby from
the rear, grabbed onto the bitch’s stifles, and held Darby against her with my
pelvis. Everyone starts laughing at me and it suddenly occurred to me the
picture we must present. Here’s the bitch standing with her butt in the
air, Darby is mounted on her, and I’m mounted on him and he and I are thrusting
away at this poor bitch! (Yes, there was a litter. At least
they didn’t put my name on the pedigree!)
Artificial Insemination
This
method is used under several circumstances. When a stud won’t or can’t,
breed properly, when the stud is many miles away and you don’t want to ship the
bitch, or when the stud has died and his semen has been stored.
Whether
you’re using frozen semen or cooled, you and your bitch will have to put
yourselves in the hands of the experts. The bitch is inseminated in one
of 2 ways, surgically or transcervically.
Surgical insemination requires that the
bitch be anesthetized and the semen is introduced directly into the uterus
through an incision through her side her side.
The
procedure with transcervical insemination introduces
the semen directly through the cervix into the uterus and the bitch does not
need to be sedated. Until recently there was a higher rate of pregnancy
with the surgical procedure but I understand that not it is equally successful transcervically.
In
either case the bitches hormone levels must be closely monitored prior to
breeding. The bitch is only fertile for a very short period of time and
it’s just prior to this that the insemination must occur. Make sure that
the vet performing this procedure has had a great deal of experience and
success.
Sometimes
it’s necessary to do an artificial insemination even though the stud is right
there and seems willing, but cannot achieve a breeding. In a case like
this, you still need knowledgeable people around. It’s not enough to
simply collect the semen and squirt it into the bitch. There’s a reason
for the ‘tie’. It’s during the tie that the bitch’s vaginal and uterine
muscles are contracting and helping to move the semen along into the
uterus. Because of this the vet or technician must ‘feather’ the
bitch. This involves inserting 2 or 3 fingers into the vulva as high as
possible and then knotting them to simulate the stimulation she would get from
a tie. It’s also a good idea to gently pull against the vulva as would
happen during a real tie.
Pregnancy, Is She or Isn’t She?
You’ll
never know how long 63 days can be until you’re waiting for your first
litter! Such an exciting time and there’s much to be done while you’re
girl is cooking the kids.
First
you’ll want to verify that she is, indeed, pregnant. There are 3 methods
of doing this. The first, oldest and least accurate, is palpation.
The vet will check the bitch at approximately 28 days post breeding. He
will feel the uterus through the abdominal wall in an attempt to palpate the
walnut sized fetuses. In smaller breeds this is
probably much more accurate but in Great Danes very difficult.
The
next, and most accurate method of early pregnancy detection, is
ultrasound. This test is performed at about 32 days post breeding.
The bitch is laid on her side and the vet will squirt some contact jelly on her
abdomen to facilitate the ‘reading’. The fetuses
are difficult to see to an untrained eye. They basically look like black
holes! If the vet counts 4 puppies, you can almost always count on twice
that number! It’s hard to do an accurate count. [INSERT PHOTO #12-13]
The
most accurate method is when a live puppy falls out of your bitch!
There is no longer any doubt that she’s pregnant, but this is not early
detection.
Please
DO NOT X-ray your bitch in early pregnancy to check for puppies.
You could do harm to the fetuses at this early
stage. Only agree to X-ray during the last few days of a pregnancy if for
some reason you simply have to know how many puppies there are.
The other good use of X-ray is to verify that there are no more puppies after
whelping. Most vets can easily palpate to verify this, making X-ray
unnecessary.
When
Skylark had her litter she seemed fine, all 8 babies were fine and I had no
idea that there was still one more puppy up there. I just packed her and
her babies up and off we went to the vets for the routine post whelping check
and pit shot. The vet said she felt another puppy in her and wanted an
X-ray to see how it was positioned. She wasn’t sure if it was dead or
alive. I figured it must be dead after all this time. The bitch had
begun to whelp around
She
was given IV calcium and a pit shot to stimulate contractions and she and I
went out into the van to await developments. About 20 minutes later after
a couple half-hearted contractions, Dr. Eaton came out to check on her and gave
her another pit shot. Suddenly here came the contractions and, hallelujah,
the PUPPY! AND HE WAS ALIVE! If we hadn’t checked her it’s
possible that she could have died from infection caused by that last puppy had
it not passed.
So
your bitch has been verified to be in whelp and it’s time to get everything
ready. What will you need? What should you expect?
What to Expect During Gestation
Obviously
you’ll expect your bitch to become much larger as her pregnancy
progresses. Depending on the number of puppies she’s carrying, this is a
reasonable expectation. Trouble is, it doesn’t
always happen! Great Danes are BIG dogs and there’s a lot of room
in there for puppies to hide! A bitch carrying a litter of 1 or 2 puppies
may not show at all! While a bitch carrying 9 might only look to be
having 2 or 3! My little Narcissus was a good example of the
latter! She was a little girl to begin with, standing only about 30½
inches tall. At only a few days before whelping, I thought she’d maybe
have 4 at the most. No one was more surprised than me when she had 9
puppies!
Be
prepared for the possibility of a personality change. Until Skylark, all
my bitches became quieter and more loving and snuggley
than normal during their pregnancies. This is, of course, a nice
change. Then I bred Skylark and I got an education in the power of female
hormones! Lark, who was the baby in the family and had always been the
omega bitch (bottom of the heap) suddenly became SUPER BITCH!
She personified the word ‘bitchy’ as applied to temperament. Every time I
turned around Lark was attacking one of the other bitches. Never her
mother Poppy, but poor Jonquilla and Narcissus were
fair game! She’d strut around the house as if it had been built for her
and her alone! She’d pull herself to her full height (in her case that’s
TALL) and give the two old ladies the evil eye. It got so bad that I
would kennel her when I had to leave the house, even if for 15 minutes to go
feed the horses. On the advice of a handler friend, I kept a large
cooking spoon upstairs and downstairs. She told me that if a fight
started, to shove the spoon into the mouth of the dog biting and it would let
go immediately. I also kept some pepper spray on hand.
I was
really devastated because I thought my sweet and silly Lark-a-Loonie, had changed into some terrible devil. Once
she’d whelped and the puppies were 4 and 5 weeks of age, she began to return to
the old Lark we all knew and loved.
While
on this subject, I should mention a couple other things that happened to
Skylark during her pregnancy. One morning about a week prior to her due
date, I awoke to find Lark standing by my bed with her back kind of hunched up
and her neck stretched out ahead of her. When she’d move her neck side to
side she’d cry out. All I could think of was that she’d slipped a disk or
something. She’d move around and ate, but you could see that certain
positions were painful.
My
vet examined her and asked me if I believed in chiropractors. (Now I’ve
always thought they were quacks, but I believed in and trusted my vet).
After expressing my opinion, I agreed to take Lark to the recommended
chiropractor. Dr. Eaton said that Lark’s neck felt like it was
‘out’. When we arrived at the chiropractor’s office, she examined Lark
thoroughly and had me place my hands on a place in her neck where there was an
obvious ‘hole’. After adjusting Lark (very gently I might add) she warned
me that she may be worse the next day but should improve by day 3. She had
me feel her neck where the ‘hole’ had been and it was gone! Sure enough,
day 2 found her really gimpy but day 3 she was almost back to her old self!
I had
been instructed to return with Lark for one more adjustment prior to her
whelping date. I had been so impressed with Lark’s improvement, that I
had her adjust me too! (I’ve had low back pain for years). I
improved along with Skylark.
What
caused Lark’s problem? Dr. Eaton explained to me that when the pregnancy
hormones begin to circulate, they cause the ligaments and soft tissues to relax
to facilitate the whelping process. This affects the tissues throughout
the body. In Lark’s case, she is a ‘boinger’,
she’ll stand in one place and leap straight into the air about 3 or 4
feet. She’s also extremely active. This, combined with the
hormones, caused her spine more flexion than it should have and it moved out of
alignment.
Items You’ll Need for Your Bitch and Her
Litter
1.
Whelping Box
This
is an enclosure where your bitch will give birth to the litter and where
they’ll remain until about the age of 3-4 weeks or until they start piling out
onto the floor! You can purchase one of these already made from dog
supply catalogs or make your own. I know one
breeder who swears by those plastic wading pools that appear in stores in the
summer. Being round they’re a more natural shape for a whelping
area. I might try one on my next litter. The biggest drawback I can
see to them is having an easily changed and cleaned pad in the bottom.
My
dad and I made my first whelping box. I think it would have held a litter
of elephants, he made it so strong! It was on a base made of 2 x 4’s and
a heavy plywood floor. It had sides that came up about 9 inches and then
a ‘shelf’ had been run along each long side to keep the bitch from smashing a
puppy against the side. (This, by the way, did not work as I extracted a
couple puppies from between the wall and mom). [Some of the box shaped
whelping boxes utilize ‘pig rails’. This is a heavy dowel (about the size
of the pole you would find in a clothes closet) that runs the length of the box
about 6 inches up from the floor and about 4 inches out from the wall.
Frankly I don’t see what real good they’d do as a puppy could still become
stuck between the rail and mom].
After
the first litter was born and I tried to find a place to store this 300 pound
thing, I decided that there must be a better way. I removed the sides of
the box and fastened each short end to the long side with hinges. This
allowed the short sides to fold in against the long one, and the whole thing
weighted about 20 pounds! The hinges that fastened the other long side to
the two short sides used hinges with removable pins. All I have to do is
pull the pins and it is all collapsed and easily stored.
This four-sided
‘box’ sits directly on the floor and I have a three-inch foam pad covered in naugahyde that completely covers
the foam. From old blankets and sheets I made covers for the pad.
The blanket is one side and the sheet the other. It fits onto the pad like
a pillowcase. There’s enough left over at the open end to tuck securely
underneath the pad. The beauty of this cover is that it’s easily removed
and washed and the puppies can’t become hidden under folds of a wrinkled
blanket and stepped on or squashed by mom.
Put
the whelping box in an area that is private. You want to keep other dogs,
cats and people away from mom and her new family in the early days.
2.
Tons of Newspaper!
You’ll
go through a lot of this during the actual whelping. I use the whelping
pad and cover and then spread a very thick layer of newspapers down.
After each puppy is born, I get the bitch up, remove the soiled papers and
replace with fresh. I also use newspapers for the floor once the pups are
out of the box and at the end of the box at about 2½ weeks when they start to
look for a place outside the nest to relieve themselves.
3.
Baby Scale
Each
puppy is weighed at birth. Then they are weighed daily until about the
age of 10 days. Although a small loss of weight isn’t unusual during the
first 24 hours, you want to see a steady gain from day to day after that.
4. Lots Of Little Terry
Cloth Towels/Rags
Use
these for helping to ‘pull’ a puppy from the vagina and/or for drying off
newborns. A vigorous rubdown helps get the puppy crying which bring air
into it’s lungs, and helps stimulate it to move
around.
5. Garbage Can & Lots Of
Garbage Bags
Self explanatory!
6. At Least 2 Mosquito Clamps
Use
one to clamp the umbilical cord about 1” from the belly, the other to clamp
about 1” past the first against the placenta and then cut the cord with dull
scissors in between the 2. You can leave the one on the pup for a few
seconds while you dry it and then remove.
7.
Dull Children’s Scissors
When
the bitch bites the cord off, it isn’t a clean cut, which means it bleeds very
little. The dull craft scissors used by kids imitate this type of cut.
8.
Heating Pad
I use
this in conjunction with the box below. I place the heating pad over only
½ of the box bottom, under a towel. This way the puppies can move off it
if it’s too hot. As each puppy is born, it’s given to mom to nurse.
The nursing helps stimulate contractions. As another puppy is about to be
born, I put all the previous puppies in the box to keep them from getting in
the way. Once the puppy is safely delivered, he and all his siblings are
returned to mom until the next pup comes along. This is also used in the
box when transporting the puppies to the vet for their post whelping exam and
for dewclaw removal at 2 days of age.
9.
Card Board Box For Pups
A
sturdy box about 18 by 24 inches with sides about 18 inches high,
is about right. It makes a handy puppy carrier and a place to corral them
while changing their bed.
10.
Rectal Thermometer
Use
this to monitor your bitch’s temperature beginning about 3 days prior to the
expected whelping date. When the temperature drops to below 99 (sometimes
as low as 97 degrees F) you can be pretty sure that she’ll go into labor within 24 hours. Also monitor her temperature
for a couple weeks post whelping to head off trouble.
11.
Clock
Note
the time (in writing, you’ll be too nervous to remember!) when each puppy is
born. If the bitch goes much more than 3 hours between puppies, you
should give your vet a call. It might be fine, but let’s not take
chances.
12.
Writing Pen