Causes of unsuccessful breeding and failed pregnancies in dogs.

Causes of unsuccessful breeding and failed pregnancies in dogs. The breeding of your favorite female and male dogs was organized properly. The mating of the two dogs happened but pregnancy failed and did not occur. The common causes are as follows 1)Breeding occurred at the wrong time during the heat. 2)The coitus was interrupted before ejaculation. 3)The stud dog has fertility problems.4)The bitch is infertile. The success in breeding programs is hinged on the fact that both the stud and bitch are checked to ascertain reproductive status and timing of mating must be correct.

Unsuccessful pregnancies in dogs are commonplace in the world of dog breeding and dog showing. Generally, dog breeders will put the best effort into planning the copulatory tie. Yet, few days or weeks later, when it’s time to confirm the pregnancy, breeders realize that the dam is not pregnant at all and the breeding failed. The coitus was interrupted before ejaculation Dog Coitus and Tie THE MALE STARTS BY MOUNTING THE FEMALE. ONCE THE MALE’S PENIS BULB GETS ENGORGED, BOTH DOGS BECOME LOCKED IN WHAT IS CALLED THE COITUS TIE. Another reason impregnation may be unsuccessful could be that the coitus was not long enough for the dog to ejaculate. A dog that mounts a female dog must be able to penetrate the female’s vulva with his penis. The penis of a dog does not become erect prior to copulation. A bone within the penis aids in the penetration of the female. A penis becomes erect and swollen when fully inside the female dog’s vagina. Ejaculation occurs only then. Any interruption of mating before ejaculation will not result in a pregnancy. During the copulatory tie, both the male dog and the female dog may have their own reasons to move away and cease the coitus. Stress, pain, and inexperience, are all common reasons why a coitus can be stopped. Obviously, the breeder and the environment may also cause the dogs to stop the mating before the sire’s ejaculation. Female dog infertility is a problem that may have a myriad of causes. In general, it is easier and cheaper to rule out timing issues, and male infertility than dealing with female infertility. Most of the causes, nevertheless, will have to be dealt with or the female will eventually show signs of illness. A female may be infertile because of abnormalities in her reproductive organs. Again, a veterinarian is essential here. She may have ovarian or uterine cysts. She may have tumors both cancerous and benign that block or prevent healthy fertilized eggs from their travel from the ovaries to the uterus. X-rays and/or ultrasound will need to be used to visualize these kinds of reproductive abnormalities or problems. Infections like canine herpes and brucellosis will cause infertility in female dogs as they do in male dogs. Any infections in the reproductive tract of the bitch may render her infertile. Regardless of breeding, these infections need to be treated by a veterinarian. A history of uterine infections, also, can lead to scarring in the uterus and cause infertility later on. Too many back-to-back breedings of a female can tired her body’s support system, too.