Posts Tagged ‘Pregnancy’

Mating: A Crash Course In The Reproductive Cycle – Part 5

Peter | September 13th, 2008
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During the first 24 to 48 hours after delivery, take the mother and all puppies to see your vet. The purpose of the examination is to insure healthy puppies with no obvious defects or illnesses, to be sure no puppies are retained in the uterus, to correct vaccination deficiencies, and to give the mother a hormone injection which will aid in contraction of the uterus and removal of the debris from stage 3.

The nursing period begins with the secretion of a complex milk-like substance called colostrum. Puppies nursing during the first 24 hours of life get antibodies from colostrum, giving them protection against diseases for the first few weeks of life. Puppies failing to nurse during the first few hours face a stormy start in life and may fail to survive.

Sick puppies, or those unable to survive the competitiveness of a large litter, soon become too weak to nurse. The result is a vicious cycle: the less they eat the weaker they become, and the weaker they become, the less they eat. Weak puppies require extra help; use an orphan formula to feed them. Several products are available over-the-counter for this purpose. For feeding instructions follow the label recommendations of the manufacturer.

Too weak to respond, many puppies fail to cry out in response to pain. Weak puppies are in danger of death and should be treated by your vet.

The nursing period places a heavy nutritional burden on the mother. The nutritional demands of nursing are greater than those of pregnancy, and close attention should be paid to proper feeding during this time. Dog foods of high quality and vitamin and mineral supplements are necessary.

Milk Fever

Eclampsia (known as milk fever) is a severe complication which can develop during the nursing period. The cause is a deficiency of calcium in the blood, resulting from rapid calcium loss into the milk during periods of high milk production. It is identified by severe convulsions and a rapid rise in body temperature. When it occurs, it is usually seen in the second week of nursing. Eclampsia is an emergency requiring immediate medical attention to prevent death.

Final Word

When the basic principles of reproduction are fully understood, the chances for successful mating will be greatly enhanced. However, the problem of how to deal with the excess puppies which result from over-breeding still remains. A number of methods are currently used to control vet over-population; none of them have been particularly successful, however, simply because of the enormous number of animals involved.

Again, attacking the problem at the source by halting unnecessary mating is a more sensible, and humane approach, than allowing dogs to mate indiscriminately and then seeking methods of disposing of the unwanted puppies.

Mating: A Crash Course In The Reproductive Cycle – Part 3

Peter | September 7th, 2008
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If the future mother is due for vaccinations, have her vaccinated prior to (not during) pregnancy, since vaccines may cause adverse effects on fetal development if given during pregnancy.

Vaccinations before pregnancy accomplish two goals:

(1) They boost the future mother’s immunity.

(2) They provide the temporary immunity puppies need after birth for protection against diseases. (Puppies are not capable of building their own immunity until they are a few weeks old.)

If the mating is successful then pregnancy will follow; like metestrus it lasts two months, taking into account individual variation. Most vets can diagnose pregnancy four weeks after mating; earlier diagnosis is difficult.

One of the best available aids is good records, which tell when dogs are mated, give insights to previous breeding problems, and by their thoroughness, point out potential problems. Without benefit of breeding dates it is easier to determine that a dog is pregnant than to determine that it is not pregnant.

A good balanced diet and vitamin and mineral supplementation, which are vital during pregnancy, becomes much more important during nursing. Health problems related to pregnancy are uncommon in dogs. Although an occasional dog may abort, even this is not common. Most problems of practical concern involve breeding, delivery, and nursing.

Birth of The Puppies

The birth process, called parturition, is conveniently divided into three easily recognized stages. They are simple termed stage 1, stage 2, and stage 3. Stage 1 is the preliminary step to true labor. The female may act to prepare a nest and personality changes may become more evident (which include irritability, nervousness and pacing).

If the female’s body temperature falls too low then this may indicate serious diseases. The rectal temperature, should it fall from the normal range of 101 -102 degrees (F), is a meaningful indicator that birth may take place in the next 24 hours. Another sign of stage 1 is the rupture of the allantoic membrane, or water bag. Upon its rupture, a large volume of fluid is spent, which leaves no doubt that labor is near.

Following is stage 2 and stage 3, which is known as true labor and the nearing of the end of labor. The first puppy should be born within a few hours. If there are no puppies being born after several hours go by then you will need to call your veterinarian. A cesarean may be needed if there is a problem.

Mating: A Crash Course In The Reproductive Cycle – Part 2

Peter | September 5th, 2008
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Dogs mate early in estrus in association with ovulation. There are three ways to determine when a female dog is ready to mate:

(1) Put her with a male and see if anything happens.

(2) Note when proestral bleeding starts and mark the 11th day on the calender, taking into account individual variations, then put her with a male and see if anything happens.

(3) When your dog is delivered from home to spend a night or two with a male, you may need an accurate account of the most likely mating time. Ask your vet to examine a vaginal smear. (It is often necessary to examine a series of smears on subsequent days to determine the proper time to mate.)

Anatomically, it is difficult for a male dog to separate himself from a female immediately after mating without causing injury. Because of this, dogs remain tied up together for 15 minutes or longer. This is completely natural and attempts at forceful separation risks injury.

When several male dogs mate one female, it is possible for more than one percentage to represent itself in the offspring. This is because the female ovulates several eggs at one time. Some of the eggs may be fertilized by one male and some by another.

A stray male dog may call unexpectedly, mating your female. Male dogs have been known to swim wide rivers, dig deep holes beneath fences, and tear planks away from barns to get to a female that is in heat.

When a mating accident occurs, avoid unwanted puppies by requesting your vet to inject a hormone to prevent pregnancy. Chances are good that pregnancy can be avoided if this is done during the first 24 to 48 hours after mating has occurred. (Keep in mind that many veterinarians may recommend a series of injections at weekly intervals and some vets may refuse to give abortion shots completely).

If Your Chosen Male Will Not Mate

Lacking experience, young male dogs may be a bit uncertain of what to do. Injections of male hormones may help, however, by the time the problem is apparent hormones are often too late to be effective. Make arrangements for a substitute in case the chosen pair will not mate. Male dogs with defective sperm cells often have a normal sex drive and a normal mating instinct; they will mate, but pregnancy will not result.

Artificial insemination serves as a substitute for natural mating when, for any reason, dogs refuse to mate. Sperm cells collected from the male by artificial means are inserted into the uterus of the female. This technique frequently results in pregnancy.

Mating: A Crash Course In The Reproductive Cycle – Part 1

Peter | September 3rd, 2008
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There used to be a time, long ago, when our population was common to have dogs that were hunters which would go out and retrieve game, some were shepherds herding sheep, and others had the job of guarding property. And during these times, man would let their canine workers roam the lands with free reign.

Eventually, old dogs had to be replaced with new ones; new blood was needed to carry on the tasks of simple existence. However, populations are no longer sparse in today’s world. Millions of homeless dogs die on the streets and in animal shelters every year. Unfortunately, when it comes to breeding these animals, the old ways still persist. Dogs are bred indiscriminately and little thought is given to the ultimate future of the scores of unlucky offspring which result from such matings.

In direct opposition to the methods used to control human overpopulation, current methods of controlling pet overpopulation are frequently aimed at incarcerating stray, unwanted pets. In their efforts to perpetuate a worthy species, a serious breeder chooses good stock, exercises discretion, and familiarizes him or herself with the basics of reproduction. Hopefully, the following discussion will provide some worthwhile insights into the reproductive process.

The Reproductive Cycle

Proestrus is the active stage of the reproductive cycle, occurring just before mating. Biological changes in the female reproductive organs during proestrus are far-reaching and affect many body systems. For our purposes, the most important changes are: a dramatic increase in the size of the female’s external sex organs and the onset of a blood-tingled general discharge (which is used to estimate breeding time).

Eleven days after the general discharge begins, females are ready to mate. This is an average based on statistics. Every dog is an individual and may vary from the norm by one or two days. During proestrus, male dogs are ready, however, females rarely except the male during this period. Proestrus lasts about nine days.

Estrus is the active stage of the reproductive cycle and follows proestrus. During estrus, the female accepts the male and the mating occurs. Mating takes place early in estrus, which is at the time of ovulation.

Metestrus immediately follows estrus provided pregnancy does not occur. In this stage the reproductive organs slowly return to a quiescent state. A condition called false pregnancy may occur during metestrus. It results when sex hormones function abnormally to stimulate pregnancy.

Anestrus, a time of complete inactivity of the reproductive organs, follows metestrus and lasts three months. The onset of proestrus marks the completion of the cycle.

False Pregnancies In Dogs

Janet | September 2nd, 2008
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Unusual behavior following a heat cycle (estrus) in the non-pregnant female dog is a common occurrence. This condition is termed false pregnancy (hyperluteoidism, pseudocyesis, pseudo-pregnancy). It is a hormonal imbalance and may cause a wide range of clinical signs.

Lets have a brief review of a normal estrous cycle on the female dog in order to have a better understanding of the abnormal type. The onset of heat is characterized by swelling of the vulva and a bloody discharge which happens from four to fourteen days.

In most female dogs, the bloody discharge lasts about ten days. During this time, the ovaries are preparing eggs for release. As the vaginal discharge changes from bloody to straw color, eggs are expelled from the ovaries. It is during this time that fertilization will take place if she is bred and this period also lasts from four to fourteen days. For most dogs, eggs will be released from the ovaries for ten days.

Following these stages the vulva will gradually return to normal size and the discharges will stop. The areas on the ovaries from which eggs erupted are termed follicles and they will undergo changes to become corpora lutea. These secrete progesterone, a hormone necessary for maintaining a normal pregnancy. If no fertilization occurs, then the corpora lutea will regress in about one month and stop secretion of progesterone.

False pregnancy results when the corpora lutea persist and an excess of progesterone is secreted. This is basically and oversimplification of a complex process but it serves to outline the basic hormonal cause.

Symptoms of False Pregnancy

Clinical signs vary considerably but almost always include increased size of the mammary glands and behavior changes. The onset of false pregnancy will usually fall between one and a half to three months after normal heat cycle.

The mammary glands can be slightly enlarged and produce a thick fluid or they may swell up with actual milk up to the point of discomfort. Behavior changes can range from irritability and aggressiveness to shyness and lethargy. Some dogs want to hide and avoid people while others appear to be actively protecting their phantom litter. Often a toy will be adopted and carried almost constantly. Any type of behavior change following a heat cycle should make one suspect of this condition.

Other less common signs are loss of appetite, slight fever, and mild digestive disturbances such as diarrhea. The syndrome can appear from the first heat cycle and usually recurs with every cycle.

Dog Breeding Is Not For Amateurs – Part 2

Gemma | August 30th, 2008
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If you browse through the free dog sales advertising websites you will notice that there are hundreds of puppies for sale every day. Many of these offers are made by professional breeders who have a reputation for being extremely passionate about what it is they do. On the other hand, most of these puppies for sale that are out there are being offered by people that decided to breed their dogs, but lack the experience needed to make dog breeding a lifelong endeavor.

If you are one of these people who do not take great interest in dog breeding for living, yet are considering breeding your dogs in order to make a few extra dollars and maybe even keep a puppy or two, it would behoove of you to read the following cons when it comes to dog breeding:

1. Professional dog breeders know the importance of sacrificing their time so that the puppies are born as healthy and strong as possible. This amount time can take hours and hours of devotion each and every day. You may want to reconsider dog breeding if you are not prepared to give up a large chunk of your freedom.

The largest part of your time will be spent on advertising and handling phone calls and inquiries from interested buyers. Men and women who are interested in the types of puppies you have available will have all sorts of questions and you must be ready to answer these questions at any given time. 95% of those who contact you with interest in your puppies will just ask questions or come by and look at the dogs, but will not end up buying one. Some new dog breeders do not have the patience for dealing with people like this.

2. Dog breeding also requires a great interest and knowledge about genetics, as well as knowing what steps to take to prevent genetic diseases. The process of dog pregnancy and how to assist with the whelping phase is one that you must be prepared for.

Dog breeding is a lot more than just putting a male and female together in hopes that they mate. You must be aware of the different ways to prevent health problems and educate yourself on the proper nutritional needs of the new puppies as well as the pregnant mother’s food needs throughout the pregnancy.

Dog Breeding Is Not For Amateurs – Part 1

Gemma | August 25th, 2008
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Are you tempted to start breeding your dogs in the hopes of adding a couple of new puppies to the family and/or making a few extra dollars by selling the other pups? I think everyone who owns a dog has thought about it at some time or another. Unfortunately, there are some downsides to breeding your dogs that you may not feel comfortable with.

Dog breeding is considered to be a way of life for those professionals that are passionate about their animals. These people live, eat, and breathe dog breeding. However, the same is not true for 99% of the other people out there that just decided to have puppies for the fun of it or for the possibility of smalltime profits.

Here are a few reasons why you might want to reconsider dog breeding unless you are 100% committed to the process and to the health of the new puppies:

1. Breeding can be a bit expensive. For starters, the costs that you will have to absorb can get a little pricey with veterinarian checkups and care for all of the puppies, which include prevention of heartworms, fleas, and regular worms. In addition, you need to budget enough money to advertise the new puppies once they are born. For most people that are not professional breeders, you may barely make enough money back to cover your investment.

2. Breeding puppies yourself can also be emotionally heartbreaking. This is one downside of breeding that most people do not expect. For example, it is not unusual for the mother to die due to whelping complications. What is even more depressing is that many times one or more puppies from the litter will pass away as well. These kind of circumstances are not something that every family can handle so please keep these possibilities in mind should you begin to breed your dogs.

3. A third downside to breeding your dogs is that the entire process is a huge responsibility. This should be quite obvious with even just the above two examples given in terms of your investment and emotional participation. Once you decide to breed your dogs and bring new life into this world, you are now entirely responsible to ensure that those puppies are given the utmost in high quality attention and health care. Breeding new puppies is not a hobby and therefore you must understand that your time and energy must be devoted to the process 100%.